{"gene":"KCNIP3","run_date":"2026-06-10T02:59:49","timeline":{"discoveries":[{"year":1999,"finding":"DREAM (KCNIP3/KChIP3/calsenilin) functions as a Ca2+-regulated transcriptional repressor that specifically binds to the downstream regulatory element (DRE) DNA sequence; upon Ca2+ stimulation, Ca2+ binding to its EF-hand domains prevents DRE binding and repressor function. Mutation of the EF-hands abolishes the Ca2+ response. DREAM represses transcription from the prodynorphin and c-fos promoters.","method":"DNA binding assays, EF-hand mutagenesis, transcriptional reporter assays, protein-DNA interaction","journal":"Nature","confidence":"High","confidence_rationale":"Tier 1 / Strong — in vitro binding assays, active-site (EF-hand) mutagenesis, transcriptional reporter assays, foundational study replicated by multiple subsequent labs","pmids":["10078534"],"is_preprint":false},{"year":2001,"finding":"Calsenilin/DREAM/KChIP3 binds 3 Ca2+ ions with Kd ~14 µM; the Ca2+-free protein forms a tetramer that binds DRE DNA (Kd ~75 nM for first site, ~640 nM for three additional sites), while the Ca2+-bound protein dimerizes and loses DNA binding. The C-terminal EF-hand-containing fragment (residues 65–256) is sufficient for Ca2+-regulated, sequence-specific DRE binding.","method":"Equilibrium Ca2+ binding measurements, dynamic light scattering, size exclusion chromatography, isothermal titration calorimetry, electrophoretic mobility shift assay (EMSA)","journal":"The Journal of biological chemistry","confidence":"High","confidence_rationale":"Tier 1 / Strong — multiple orthogonal biophysical methods (ITC, DLS, SEC, EMSA) in a single rigorous study characterizing Ca2+-dependent oligomerization and DNA binding","pmids":["11535596"],"is_preprint":false},{"year":2005,"finding":"Mg2+ and Ca2+ differentially regulate DREAM (KCNIP3): Mg2+ binds constitutively to EF-2 (Kd ~13 µM), stabilizes DREAM as a monomer, and is essential for sequence-specific DRE binding, whereas Ca2+ binds to EF-3 and EF-4, induces protein dimerization, and binding of even a single Ca2+ at EF-3 or EF-4 is sufficient to abolish DNA binding. NMR shows metal-free DREAM adopts a molten-globule-like structure.","method":"ITC, size-exclusion chromatography, EMSA with EF-hand point mutants, NMR structural analysis","journal":"The Journal of biological chemistry","confidence":"High","confidence_rationale":"Tier 1 / Strong — multiple orthogonal methods (ITC, SEC, EMSA, NMR) with systematic mutagenesis of individual EF-hands in a single study","pmids":["15746104"],"is_preprint":false},{"year":2001,"finding":"KChIP3/DREAM/calsenilin acts as a modulator of Kv4.3-mediated A-type potassium channels in dopaminergic substantia nigra neurons; Kv4.3L and KChIP3.1 mRNA levels are tightly correlated with A-type channel density and pacemaker frequency, indicating transcriptional control of channel gene expression tunes firing rates.","method":"Multiplex and quantitative real-time single-cell RT-PCR combined with slice patch-clamp electrophysiology","journal":"The EMBO journal","confidence":"High","confidence_rationale":"Tier 2 / Strong — quantitative single-cell RT-PCR coupled with electrophysiology, replicated across many individual neurons with strong linear correlation","pmids":["11598014"],"is_preprint":false},{"year":2005,"finding":"KChIP3 and DPP10 simultaneously associate with Kv4.2 proteins to form ternary Kv4.2+KChIP3+DPP10 complexes in rat brain and in heterologous expression systems; the ternary complex produces ISA-like currents with very rapid recovery from inactivation (~18–26 ms) distinct from binary Kv4.2+KChIP3 or Kv4.2+DPP10 channels.","method":"Immunoprecipitation from rat brain and Xenopus oocytes, whole-cell electrophysiology in oocytes and CHO cells","journal":"The Journal of physiology","confidence":"High","confidence_rationale":"Tier 2 / Strong — reciprocal co-IP from native tissue plus functional reconstitution in two heterologous systems","pmids":["16123112"],"is_preprint":false},{"year":2004,"finding":"KChIP3 drives Kv4 channel subunit assembly into tetramers within the endoplasmic reticulum, independently of its effects on channel trafficking; KChIP3 rescues surface expression of Kv4.2 zinc-site tetramerization mutants that are otherwise trapped in the ER, and alters gating kinetics (reduced time to peak, faster inactivation, ~3–4 fold slower recovery from inactivation).","method":"Expression of Kv4.2 zinc-binding site mutants with KChIP3 in heterologous cells; whole-cell patch-clamp electrophysiology","journal":"The Journal of biological chemistry","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — functional rescue of assembly-deficient mutants with KChIP3, single lab, two complementary approaches (trafficking + gating)","pmids":["15485870"],"is_preprint":false},{"year":2001,"finding":"Calsenilin/DREAM/KChIP3 has a pro-apoptotic function: antisense-mediated knockdown attenuates apoptosis induced by Fas, Ca2+-ionophore, or thapsigargin; overexpression induces caspase-dependent apoptosis (suppressed by Z-VAD and Bcl-XL) and increases Aβ42 production in cells expressing APPsw, with potentiation by presenilin 2.","method":"Antisense oligonucleotide knockdown, overexpression, caspase inhibitor treatment, DNA ladder/cell morphology assays, Aβ ELISA","journal":"FASEB journal","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — loss-of-function and gain-of-function with defined biochemical phenotypes, single lab","pmids":["11259376"],"is_preprint":false},{"year":2001,"finding":"Mouse calsenilin/DREAM/KChIP3 is encoded by a single unique gene; alternate translation starts and alternative splicing yield multiple isoforms including some lacking EF-hand domains. Expression is restricted to the nervous system and largely coincides with Kv4.2 distribution.","method":"Full-length cDNA cloning, genomic analysis, in situ hybridization, RT-PCR, Northern blotting","journal":"Molecular and cellular neurosciences","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — direct molecular characterization of gene structure and isoforms, single lab","pmids":["11161465"],"is_preprint":false},{"year":2008,"finding":"DREAM (KCNIP3) functions as a negative regulator of CREB-dependent transcription in a Ca2+-dependent manner; loss of DREAM in dream−/− mice enhances CREB-dependent transcription during learning, resulting in markedly enhanced learning, synaptic plasticity, and protection from brain aging.","method":"Genetic knockout mouse model, behavioral testing (contextual learning), synaptic plasticity assays, molecular analysis of CREB activity","journal":"Current biology","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — clean KO mouse with defined behavioral and molecular phenotypes, single lab","pmids":["19110430"],"is_preprint":false},{"year":2009,"finding":"KChIP3 membrane association and interaction with Kv4.2 is significantly decreased while nuclear KChIP3 is increased 6 hours after contextual fear conditioning training. Prodynorphin mRNA is decreased in WT but not KChIP3 KO mice after training, demonstrating KChIP3/DREAM transcriptional repression of prodynorphin during memory consolidation.","method":"KChIP3 KO mouse behavioral testing (fear conditioning), subcellular fractionation, co-immunoprecipitation with Kv4.2, RT-PCR for prodynorphin mRNA","journal":"Learning & memory","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — KO mouse with behavioral readout plus biochemical localization and target gene analysis, single lab","pmids":["19223600"],"is_preprint":false},{"year":2009,"finding":"DREAM directly interacts with the TSH receptor (TSHR) through a protein-protein interaction that promotes coupling between TSHR and Gαs; DREAM overexpression in transgenic mice causes marked thyroid enlargement, and elevated DREAM protein is found in human multinodular goiters.","method":"Co-immunoprecipitation (DREAM-TSHR interaction), transgenic mouse model, immunohistochemistry of human goiter tissue","journal":"Molecular endocrinology","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — co-IP plus in vivo transgenic model, single lab, two orthogonal approaches","pmids":["19299442"],"is_preprint":false},{"year":2010,"finding":"DREAM directly binds to the C0 domain of the NMDAR NR1 subunit; residues 21–40 of the DREAM N-terminus constitute the primary NR1 binding site and DREAM overexpression reduces surface NMDAR expression and NMDAR-mediated current, providing neuroprotection against excitotoxicity.","method":"Co-immunoprecipitation, pull-down assays, whole-cell patch-clamp electrophysiology, cell-permeable peptide (TAT-21-40) in vitro and in vivo neuroprotection assays","journal":"The Journal of neuroscience","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — direct binding domain mapping, functional current measurements, and in vivo peptide experiment, single lab","pmids":["20519532"],"is_preprint":false},{"year":2010,"finding":"KChIP3 is specifically required for Ca2+-regulated secretion in PC12 cells; KChIP3 (but not KChIPs 1, 2, or 4) increases evoked exocytosis following purinergic receptor activation, delays Ca2+ recovery after peak elevation, and downregulates the Na+/Ca2+ exchanger NCX3 via its DREAM transcriptional repressor function.","method":"Overexpression of individual KChIP isoforms in PC12 cells, secretion assays, Ca2+ imaging, Western blot for NCX3","journal":"The Biochemical journal","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — systematic isoform comparison with functional readouts, single lab","pmids":["18393943"],"is_preprint":false},{"year":2010,"finding":"Sumoylation regulates the nuclear localization of DREAM; DREAM interacts with the SUMO-conjugating enzyme Ubc9, and mutations at K26 and K90 prevent DREAM sumoylation and reduce nuclear localization without affecting DRE binding. Sumoylated DREAM is exclusively nuclear in PC12 cells and accumulates in the nucleus upon neuronal differentiation.","method":"Yeast two-hybrid (Ubc9 interaction), in vitro sumoylation assays with K-to-R point mutants, subcellular fractionation, immunofluorescence co-localization","journal":"Biochimica et biophysica acta","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — in vitro sumoylation with point mutants plus subcellular localization experiments, single lab","pmids":["21070824"],"is_preprint":false},{"year":2009,"finding":"DREAM represses prodynorphin and BDNF expression in the spinal cord; transgenic mice overexpressing a Ca2+- and cAMP-insensitive DREAM mutant show reduced spinal BDNF expression and fail to develop spinal sensitization following peripheral inflammation, demonstrating DREAM-dependent regulation of BDNF is required for central sensitization.","method":"Transgenic mouse overexpressing dominant-active DREAM, gene expression analysis (prodynorphin, BDNF), in vivo and in vitro spinal cord reflex assays","journal":"Molecular pain","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — transgenic dominant-active model with defined gene expression and electrophysiological phenotypes, single lab","pmids":["21167062"],"is_preprint":false},{"year":2009,"finding":"DREAM modulates cortical astrogliogenesis via a PACAP-cAMP-Ca2+-DREAM signaling cascade; PACAP stimulates cAMP production and Ca2+ entry, and Ca2+ in turn activates DREAM binding to the GFAP promoter DRE sequence to stimulate GFAP expression during astrocyte differentiation. Loss of DREAM in vivo alters the number of neurons and astrocytes generated during development.","method":"Reporter gene assays for GFAP promoter, DREAM knockout analysis, in vitro calcium and cAMP manipulation","journal":"Molecular neurobiology","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — promoter binding assay, KO mouse phenotype, pathway epistasis, single lab","pmids":["19238593"],"is_preprint":false},{"year":2010,"finding":"KChIP2, KChIP3, and KChIP4 all co-immunoprecipitate with Kv4.2 in adult mouse cortex. Loss of KChIP3 alone modestly reduces IA density in cortical pyramidal neurons, but combined knockdown of KChIP2, 3, and 4 markedly reduces IA and induces Kv current remodeling, revealing interdependent roles of KChIP subunits.","method":"Co-immunoprecipitation from mouse cortex, whole-cell patch-clamp in KO neurons, RNAi knockdown of multiple KChIPs","journal":"The Journal of neuroscience","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — co-IP from native tissue plus KO and RNAi functional studies, single lab","pmids":["20943905"],"is_preprint":false},{"year":2014,"finding":"KChIP3 (KCNIP3) acts as a tonic brake on baseline mucin secretion in colonic goblet cells; KChIP3 associates with mature mucin-filled secretory granules, and ryanodine receptor-dependent intracellular Ca2+ oscillations dissociate KChIP3 from granules to allow exocytosis. Loss of KChIP3 (Kcnip3−/− mice or KD) causes mucin hypersecretion; overexpression or abolishing Ca2+-sensing increases granule association and inhibits baseline secretion.","method":"Kcnip3−/− mice (colon phenotype), human differentiated colonic cell line knockdown and overexpression, co-localization with mucin granules, Ca2+ imaging with ryanodine receptor manipulation","journal":"eLife","confidence":"High","confidence_rationale":"Tier 2 / Strong — KO mouse phenotype, multiple cell-based gain/loss-of-function, direct granule co-localization and Ca2+ manipulation, two orthogonal model systems","pmids":["30272559"],"is_preprint":false},{"year":2014,"finding":"NS5806 binds at a hydrophobic site on the C-terminus of KChIP3 in a Ca2+-dependent manner (Kd 2–5 µM in Ca2+-bound form) and increases the affinity of KChIP3 for the hydrophobic N-terminus of Kv4.3. Mutation of Tyr-174 or Phe-218 on KChIP3 abolishes this drug-induced enhancement of Kv4.3 binding.","method":"Fluorescence spectroscopy, isothermal titration calorimetry, docking simulations, site-directed mutagenesis of KChIP3","journal":"The Journal of biological chemistry","confidence":"Medium","confidence_rationale":"Tier 1 / Moderate — ITC and fluorescence binding assays with mutagenesis, single lab","pmids":["25228688"],"is_preprint":false},{"year":2018,"finding":"The N-terminal 31–50 fragment of KChIP3 binds directly to both the intracellular N- and C-termini of TRPV1, reducing TRPV1 surface localization and Ca2+ influx. A cell-permeable TAT-31-50 peptide reduces TRPV1-mediated Ca2+ influx in DRG neurons and alleviates thermal hyperalgesia in a CFA-induced inflammatory pain model, independently of endogenous KChIP3.","method":"Co-IP/pull-down mapping of KChIP3-TRPV1 interaction domain, surface TRPV1 biotinylation assay, Ca2+ imaging in DRG neurons, intrathecal/intraplantar TAT peptide injection in Kcnip3−/− and WT rats","journal":"The Journal of neuroscience","confidence":"High","confidence_rationale":"Tier 2 / Strong — direct domain mapping by binding assays, functional readout in native neurons, validated in KO animals, multiple orthogonal approaches","pmids":["29335353"],"is_preprint":false},{"year":2021,"finding":"DREAM (KCNIP3) in neutrophils promotes neutrophil recruitment to sites of TNF-α-induced vascular inflammation; DREAM represses expression of A20 (a NF-κB negative regulator) and enhances IKKβ phosphorylation and pro-inflammatory molecule expression after TNF-α stimulation. DREAM-dependent IKKβ activation mediates SNAP-23 phosphorylation and degranulation. Sickle cell disease mice lacking DREAM show reduced vaso-occlusive events.","method":"Intravital microscopy, genetic DREAM knockout in mice, pharmacological IKKβ inhibition, SNAP-23 phosphorylation assays, β2 integrin activity assay, HL-60 cell knockdown","journal":"The Journal of experimental medicine","confidence":"High","confidence_rationale":"Tier 2 / Strong — in vivo intravital microscopy, genetic KO, pharmacological epistasis, multiple defined molecular pathway steps, replicated in mouse model of disease","pmids":["34751735"],"is_preprint":false},{"year":2022,"finding":"DREAM represses A20 (TNFAIP3) expression in fibroblasts; DREAM-null mice have elevated A20 and are protected from fibrosis, while mice with fibroblast-specific A20 deletion develop SSc-like fibrosis. TGF-β induces A20 expression in DREAM-null but not WT fibroblasts, establishing a DREAM-A20 regulatory axis governing fibroblast activation and organ fibrosis.","method":"DREAM-null mouse model, fibroblast-specific A20 conditional KO, A20 expression analysis, TGF-β stimulation assays, bleomycin fibrosis model","journal":"Nature communications","confidence":"High","confidence_rationale":"Tier 2 / Strong — genetic KO and conditional KO in mice with defined molecular pathway, multiple disease models, replicated across cell and animal systems","pmids":["36289219"],"is_preprint":false},{"year":2019,"finding":"Global Kcnip3 knockout in rats enhances pain sensitivity in both acute nociceptive and chronic inflammatory pain models and exacerbates negative emotions (anxiety, depression-like behavior, pain aversion). Transcriptomic profiling of KO rat forebrain reveals upregulation of genes associated with dopamine neurotransmission and neural development.","method":"CRISPR-generated Kcnip3−/− rat model, nociceptive behavioral testing, affective/anxiety behavioral tests, RNA-seq transcriptomic profiling, qPCR validation","journal":"Frontiers in molecular neuroscience","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — clean KO rat with defined behavioral phenotypes and transcriptome-level downstream analysis, single lab","pmids":["30740043"],"is_preprint":false},{"year":2016,"finding":"FMRP mediates chronic ethanol-induced changes in KChIP3 expression in the hippocampus; chronic intermittent ethanol increases phosphorylation of FMRP at S499 (via S6K1), reduces KChIP3 protein while increasing KChIP3 mRNA association with FMRP, and S6K1 inhibition prevents these changes, indicating FMRP translational suppression of KChIP3 is part of homeostatic plasticity.","method":"In vivo CIE exposure, immunoblot, FMRP-bound mRNA immunoprecipitation, S6K1 inhibitor treatment in hippocampal slice cultures","journal":"Alcoholism, clinical and experimental research","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — in vivo and in vitro experiments with pharmacological epistasis, two model systems, single lab","pmids":["27147118"],"is_preprint":false}],"current_model":"KCNIP3 (DREAM/KChIP3/calsenilin) is a multifunctional neuronal calcium sensor protein that, in its Ca2+-free tetrameric state, binds DRE DNA sequences and acts as a transcriptional repressor of target genes including prodynorphin, c-fos, BDNF, and A20; Ca2+ binding (at EF-hands 3 and 4) dissociates DNA binding by inducing dimerization, while Mg2+ binding at EF-2 is required for sequence-specific DNA binding. In the cytoplasm and at the membrane, KChIP3 associates with Kv4-family α-subunits (along with DPP proteins) to form ternary channel complexes that regulate A-type K+ current gating and surface expression, and also interacts with TRPV1, NMDARs, TSH receptor, and mucin secretory granules to modulate their function. Its sumoylation at K26 and K90 controls nuclear localization, and its nuclear activity is further regulated by cAMP/PACAP signaling and FMRP-mediated translational control."},"narrative":{"mechanistic_narrative":"KCNIP3 (DREAM/KChIP3/calsenilin) is a bifunctional neuronal calcium sensor that couples intracellular Ca2+ signals to both gene transcription and ion channel behavior [PMID:10078534, PMID:11598014]. In its metal-regulated form it acts as a sequence-specific transcriptional repressor: the Ca2+-free protein assembles into a DNA-binding tetramer that engages the downstream regulatory element (DRE), and Ca2+ binding to EF-hands 3 and 4 drives dimerization and release from DNA, while constitutive Mg2+ binding at EF-2 stabilizes the monomer required for sequence-specific DRE recognition [PMID:10078534, PMID:11535596, PMID:15746104]. Through this repressor activity DREAM controls a defined set of target genes including prodynorphin, BDNF, GFAP, the Na+/Ca2+ exchanger NCX3, and the NF-kB inhibitor A20, thereby shaping pain processing and central sensitization [PMID:19223600, PMID:21167062], astrogliogenesis downstream of PACAP-cAMP-Ca2+ signaling [PMID:19238593], Ca2+-regulated secretion [PMID:18393943], and inflammatory and fibrotic responses via repression of A20 [PMID:34751735, PMID:36289219]. In parallel, KChIP3 functions as a cytoplasmic/membrane auxiliary subunit of Kv4-family A-type potassium channels, promoting Kv4 tetramer assembly in the ER, rescuing surface expression, and tuning gating kinetics, and it forms ternary Kv4.2-KChIP3-DPP10 complexes that set firing properties of neurons [PMID:11598014, PMID:16123112, PMID:15485870, PMID:20943905]. Beyond channels, KChIP3 directly binds and regulates surface trafficking of TRPV1 and the NMDAR NR1 subunit to limit Ca2+ influx and confer neuroprotection [PMID:20519532, PMID:29335353], couples to the TSH receptor [PMID:19299442], and acts as a Ca2+-sensitive brake on mucin granule exocytosis in colonic goblet cells [PMID:30272559]. Its subcellular partitioning is controlled by sumoylation at K26 and K90, which promotes nuclear accumulation [PMID:21070824], and its expression is subject to FMRP-mediated translational suppression during homeostatic plasticity [PMID:27147118]. Genetic loss of KCNIP3 enhances learning and synaptic plasticity [PMID:19110430] and increases pain sensitivity and negative affect [PMID:30740043], underscoring its role as a repressive set-point regulator across neuronal and non-neuronal systems.","teleology":[{"year":1999,"claim":"Established the founding mechanism: DREAM is a Ca2+-regulated transcriptional repressor that binds the DRE DNA element through EF-hand-dependent Ca2+ sensing, defining a direct link between calcium signaling and gene repression.","evidence":"DNA-binding assays, EF-hand mutagenesis, and transcriptional reporter assays on prodynorphin and c-fos promoters","pmids":["10078534"],"confidence":"High","gaps":["Did not resolve the oligomeric basis of DNA binding versus Ca2+ release","In vivo target gene set not yet defined"]},{"year":2001,"claim":"Resolved the biophysical switch: the Ca2+-free protein is a DNA-binding tetramer that dimerizes and loses DNA binding upon Ca2+ loading, explaining how calcium toggles repressor activity.","evidence":"Equilibrium Ca2+ binding, DLS, SEC, ITC, and EMSA on full-length and C-terminal fragments","pmids":["11535596"],"confidence":"High","gaps":["Did not address the role of other divalent cations","No structural model of the DNA-bound tetramer"]},{"year":2005,"claim":"Distinguished metal-specific roles, showing Mg2+ at EF-2 is constitutively bound and required for sequence-specific DNA binding while Ca2+ at EF-3/EF-4 drives dimerization, refining the dual-metal regulatory logic.","evidence":"ITC, SEC, EMSA with EF-hand point mutants, and NMR structural analysis","pmids":["15746104"],"confidence":"High","gaps":["Molten-globule apo state not crystallographically resolved","Physiological Mg2+/Ca2+ competition in cells not measured"]},{"year":2001,"claim":"Defined the channel arm of KChIP3 function and its tissue restriction, linking KChIP3/Kv4 expression to A-type K+ current density and neuronal firing rates and showing a nervous-system-restricted gene with multiple isoforms.","evidence":"Single-cell RT-PCR with slice patch-clamp in dopaminergic neurons; cDNA cloning, in situ hybridization, and Northern blot for isoform/expression mapping","pmids":["11598014","11161465"],"confidence":"High","gaps":["Causal direction between channel expression and firing only correlational in [#3]","Functional roles of EF-hand-lacking isoforms unresolved"]},{"year":2005,"claim":"Mapped how KChIP3 builds and remodels Kv4 channels, showing it drives ER tetramer assembly, rescues trafficking-deficient mutants, and forms ternary Kv4.2-KChIP3-DPP10 complexes with distinct gating.","evidence":"Co-IP from rat brain and oocytes, expression of zinc-site assembly mutants, and whole-cell electrophysiology in heterologous systems","pmids":["16123112","15485870"],"confidence":"Medium","gaps":["Stoichiometry of native ternary complexes in brain not quantified","Structural basis of assembly chaperone activity unknown"]},{"year":2001,"claim":"Identified a pro-apoptotic and amyloidogenic role, connecting calsenilin/DREAM to caspase-dependent death and Abeta42 production with presenilin 2.","evidence":"Antisense knockdown, overexpression, caspase inhibitor treatment, and Abeta ELISA","pmids":["11259376"],"confidence":"Medium","gaps":["Mechanism linking transcriptional/channel functions to apoptosis not defined","Single lab, no genetic validation"]},{"year":2008,"claim":"Showed in vivo that DREAM negatively regulates CREB-dependent transcription, with knockout enhancing learning, synaptic plasticity, and protection from aging.","evidence":"dream-/- knockout mice with behavioral, plasticity, and CREB-activity assays","pmids":["19110430"],"confidence":"Medium","gaps":["Direct DRE targets mediating the cognitive phenotype not enumerated","Distinction from channel-dependent effects unresolved"]},{"year":2009,"claim":"Demonstrated activity-dependent nuclear redistribution and target repression, linking fear conditioning to loss of Kv4.2 membrane association, increased nuclear KChIP3, and prodynorphin repression.","evidence":"KChIP3 KO behavior, subcellular fractionation, Kv4.2 co-IP, and prodynorphin RT-PCR","pmids":["19223600"],"confidence":"Medium","gaps":["Signal triggering nuclear translocation not identified","Whether redistribution is causal or correlative not established"]},{"year":2009,"claim":"Extended the transcriptional repressor role to pain and glial development, showing DREAM represses spinal prodynorphin/BDNF for central sensitization and activates GFAP via a PACAP-cAMP-Ca2+ cascade in astrogliogenesis.","evidence":"Transgenic dominant-active DREAM mice with spinal reflex and gene expression assays; GFAP promoter reporter and KO analysis","pmids":["21167062","19238593"],"confidence":"Medium","gaps":["DREAM acting as activator vs repressor at GFAP not mechanistically reconciled","cAMP-responsiveness structural basis not mapped"]},{"year":2010,"claim":"Broadened the partner repertoire beyond channels, mapping direct interactions with TSHR, the NMDAR NR1 C0 domain, and a role in Ca2+-regulated secretion via NCX3 repression.","evidence":"Co-IP, pull-down domain mapping, electrophysiology, transgenic mice, and PC12 secretion/Ca2+ imaging with isoform comparison","pmids":["19299442","20519532","18393943"],"confidence":"Medium","gaps":["Which interactions are direct vs complex-mediated not uniformly tested","Stoichiometry and competition among membrane partners unknown"]},{"year":2010,"claim":"Defined regulation of KChIP3 subcellular targeting through sumoylation at K26/K90 via Ubc9, controlling nuclear accumulation without altering DNA binding.","evidence":"Yeast two-hybrid, in vitro sumoylation with K-to-R mutants, and subcellular fractionation/immunofluorescence","pmids":["21070824"],"confidence":"Medium","gaps":["SUMO isopeptidase counter-regulation not identified","Link between sumoylation and activity-dependent translocation unresolved"]},{"year":2010,"claim":"Clarified KChIP subunit redundancy in cortex, showing KChIP2/3/4 jointly associate with Kv4.2 and that combined loss markedly remodels A-type current beyond single KChIP3 deletion.","evidence":"Co-IP from mouse cortex with KO and multi-KChIP RNAi plus patch-clamp","pmids":["20943905"],"confidence":"Medium","gaps":["Subunit-specific contributions to gating not isolated","Compensatory mechanisms among KChIPs not defined"]},{"year":2014,"claim":"Established a non-neuronal secretory role and a druggable Kv4 interface, showing KChIP3 is a Ca2+-sensitive brake on mucin granule exocytosis and that NS5806 binds the Ca2+-bound C-terminus to enhance Kv4.3 affinity.","evidence":"Kcnip3-/- mice and colonic cell gain/loss-of-function with granule co-localization; fluorescence/ITC binding and KChIP3 mutagenesis (Tyr-174, Phe-218)","pmids":["30272559","25228688"],"confidence":"High","gaps":["Granule-association partner of KChIP3 not identified","Whether the NS5806 site is exploited physiologically unknown"]},{"year":2018,"claim":"Mapped a direct KChIP3-TRPV1 interaction and showed a derived peptide reduces TRPV1 surface expression and inflammatory thermal hyperalgesia independently of endogenous KChIP3.","evidence":"Domain-mapping co-IP/pull-down, surface biotinylation, DRG Ca2+ imaging, and TAT-31-50 peptide injection in WT and Kcnip3-/- rats","pmids":["29335353"],"confidence":"High","gaps":["Endogenous KChIP3 regulation of TRPV1 in vivo not isolated","Structural basis of dual N/C-terminal TRPV1 binding unresolved"]},{"year":2021,"claim":"Defined a pro-inflammatory transcriptional axis, showing neutrophil DREAM represses A20 to enhance IKKbeta activation, SNAP-23 phosphorylation, degranulation, and vaso-occlusion in sickle cell disease.","evidence":"Intravital microscopy, DREAM KO mice, IKKbeta inhibition, phosphorylation assays, and HL-60 knockdown","pmids":["34751735"],"confidence":"High","gaps":["Direct DRE binding at the A20 promoter in neutrophils not shown","Ca2+ trigger for DREAM in this context not defined"]},{"year":2022,"claim":"Generalized the DREAM-A20 axis to fibrosis, showing DREAM-null mice have elevated A20 and resist fibrosis while fibroblast A20 deletion is sufficient to drive SSc-like disease.","evidence":"DREAM-null and fibroblast-specific A20 conditional KO mice, TGF-beta stimulation, and bleomycin fibrosis models","pmids":["36289219"],"confidence":"High","gaps":["Whether DREAM represses A20 via canonical DRE binding in fibroblasts not confirmed","Upstream Ca2+ regulation in fibroblasts unaddressed"]},{"year":2019,"claim":"Established whole-organism consequences of KCNIP3 loss, showing KO rats have enhanced pain and negative affect with transcriptomic upregulation of dopamine and neurodevelopmental genes.","evidence":"CRISPR Kcnip3-/- rats with nociceptive and affective behavior plus forebrain RNA-seq","pmids":["30740043"],"confidence":"Medium","gaps":["Which transcriptomic changes are direct DREAM targets unknown","Circuit basis of affective phenotype undefined"]},{"year":2016,"claim":"Identified upstream translational control of KChIP3, showing FMRP suppresses KChIP3 translation via S6K1-dependent S499 phosphorylation during ethanol-induced homeostatic plasticity.","evidence":"In vivo chronic intermittent ethanol, immunoblot, FMRP-mRNA IP, and S6K1 inhibition in hippocampal slices","pmids":["27147118"],"confidence":"Medium","gaps":["Functional consequence of reduced KChIP3 on channel/transcription not measured here","Direct FMRP binding site on KChIP3 mRNA not mapped"]},{"year":null,"claim":"How DREAM's nuclear transcriptional repressor function is mechanistically coordinated with its cytoplasmic/membrane channel- and receptor-modulating roles, and what signals dictate the partitioning, remains unresolved.","evidence":"","pmids":[],"confidence":"Medium","gaps":["No integrated model linking activity-dependent translocation, sumoylation, and target-gene selection","Structure of the DNA-bound vs partner-bound states not determined"]}],"mechanism_profile":{"molecular_activity":[{"term_id":"GO:0140110","term_label":"transcription regulator activity","supporting_discovery_ids":[0,1,2,9,14,15,20,21]},{"term_id":"GO:0003677","term_label":"DNA binding","supporting_discovery_ids":[0,1,2]},{"term_id":"GO:0140299","term_label":"molecular sensor activity","supporting_discovery_ids":[0,1,2,17]},{"term_id":"GO:0098772","term_label":"molecular function regulator activity","supporting_discovery_ids":[3,4,5,11,17,19]},{"term_id":"GO:0060089","term_label":"molecular transducer activity","supporting_discovery_ids":[0,17]}],"localization":[{"term_id":"GO:0005634","term_label":"nucleus","supporting_discovery_ids":[0,9,13]},{"term_id":"GO:0005886","term_label":"plasma membrane","supporting_discovery_ids":[4,9,11,19]},{"term_id":"GO:0005783","term_label":"endoplasmic reticulum","supporting_discovery_ids":[5]},{"term_id":"GO:0031410","term_label":"cytoplasmic 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Cancer Cell Phenotypes via DREAM in p53-Mutant Fallopian Tube Models.","date":"2021","source":"The Journal of clinical endocrinology and metabolism","url":"https://pubmed.ncbi.nlm.nih.gov/33755733","citation_count":20,"is_preprint":false},{"pmid":"28372287","id":"PMC_28372287","title":"Organ reconstruction: Dream or reality for the future.","date":"2017","source":"Bio-medical materials and engineering","url":"https://pubmed.ncbi.nlm.nih.gov/28372287","citation_count":19,"is_preprint":false},{"pmid":"29408367","id":"PMC_29408367","title":"Review: Limb regeneration in humans: Dream or reality?","date":"2018","source":"Annals of anatomy = Anatomischer Anzeiger : official organ of the Anatomische Gesellschaft","url":"https://pubmed.ncbi.nlm.nih.gov/29408367","citation_count":19,"is_preprint":false},{"pmid":"37798168","id":"PMC_37798168","title":"Novel technologies are turning a dream into reality: conditionally replicating viruses as vaccines.","date":"2023","source":"Trends in 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Society","url":"https://pubmed.ncbi.nlm.nih.gov/31192694","citation_count":18,"is_preprint":false},{"pmid":"33139668","id":"PMC_33139668","title":"Monoclonal Antibodies to Treat Multiple Myeloma: A Dream Come True.","date":"2020","source":"International journal of molecular sciences","url":"https://pubmed.ncbi.nlm.nih.gov/33139668","citation_count":18,"is_preprint":false},{"pmid":"25181036","id":"PMC_25181036","title":"Is personalized medicine a dream or a reality?","date":"2014","source":"Critical reviews in clinical laboratory sciences","url":"https://pubmed.ncbi.nlm.nih.gov/25181036","citation_count":18,"is_preprint":false},{"pmid":"27147118","id":"PMC_27147118","title":"FMRP Mediates Chronic Ethanol-Induced Changes in NMDA, Kv4.2, and KChIP3 Expression in the Hippocampus.","date":"2016","source":"Alcoholism, clinical and experimental 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drug associations in human cancer.","date":"2021","source":"Molecular cancer","url":"https://pubmed.ncbi.nlm.nih.gov/34774049","citation_count":16,"is_preprint":false},{"pmid":"34686342","id":"PMC_34686342","title":"DREAM represses distinct targets by cooperating with different THAP domain proteins.","date":"2021","source":"Cell reports","url":"https://pubmed.ncbi.nlm.nih.gov/34686342","citation_count":16,"is_preprint":false},{"pmid":"35909975","id":"PMC_35909975","title":"Plasmodium vivax Duffy Binding Protein-Based Vaccine: a Distant Dream.","date":"2022","source":"Frontiers in cellular and infection microbiology","url":"https://pubmed.ncbi.nlm.nih.gov/35909975","citation_count":16,"is_preprint":false},{"pmid":"26885443","id":"PMC_26885443","title":"The association of mammalian DREAM complex and HPV16 E7 proteins.","date":"2015","source":"American journal of cancer 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Aurora kinase A/B pathway determines therapy responsiveness and outcome in p53 WT NSCLC.","date":"2022","source":"Scientific reports","url":"https://pubmed.ncbi.nlm.nih.gov/35058503","citation_count":15,"is_preprint":false},{"pmid":"19779746","id":"PMC_19779746","title":"Universal species concept: pipe dream or a step toward unifying biology?","date":"2009","source":"Journal of industrial microbiology & biotechnology","url":"https://pubmed.ncbi.nlm.nih.gov/19779746","citation_count":15,"is_preprint":false},{"pmid":"18393943","id":"PMC_18393943","title":"Specific effects of KChIP3/calsenilin/DREAM, but not KChIPs 1, 2 and 4, on calcium signalling and regulated secretion in PC12 cells.","date":"2008","source":"The Biochemical journal","url":"https://pubmed.ncbi.nlm.nih.gov/18393943","citation_count":14,"is_preprint":false},{"pmid":"33932409","id":"PMC_33932409","title":"Untapped endocannabinoid pharmacological targets: Pipe dream or pipeline?","date":"2021","source":"Pharmacology, biochemistry, and behavior","url":"https://pubmed.ncbi.nlm.nih.gov/33932409","citation_count":14,"is_preprint":false},{"pmid":"17576551","id":"PMC_17576551","title":"Lipid rafts: dream or reality for cholesterol transporters?","date":"2007","source":"European biophysics journal : EBJ","url":"https://pubmed.ncbi.nlm.nih.gov/17576551","citation_count":14,"is_preprint":false},{"pmid":"38789411","id":"PMC_38789411","title":"HDAC activity is dispensable for repression of cell-cycle genes by DREAM and E2F:RB complexes.","date":"2024","source":"Nature communications","url":"https://pubmed.ncbi.nlm.nih.gov/38789411","citation_count":13,"is_preprint":false}],"cost":{"stage1":{"model":"claude-sonnet-4-6","input_tokens":44651,"output_tokens":6337,"usd":0.114504,"stage1_stop_reason":"end_turn"},"stage2":{"model":"claude-opus-4-8","input_tokens":15298,"output_tokens":6126,"usd":0.11482,"stage2_stop_reason":"end_turn"},"total_usd":0.229324,"stage1_batch_id":"msgbatch_01BbTCMyrRPyhtEq6b1MdwCN","stage2_batch_id":"msgbatch_011dEed5bbxYvTAaQWKJevxu","note":"batch pricing = 50% of standard"},"stage1_raw":"```json\n{\n  \"discoveries\": [\n    {\n      \"year\": 1999,\n      \"finding\": \"DREAM (KCNIP3/KChIP3/calsenilin) functions as a Ca2+-regulated transcriptional repressor that specifically binds to the downstream regulatory element (DRE) DNA sequence; upon Ca2+ stimulation, Ca2+ binding to its EF-hand domains prevents DRE binding and repressor function. Mutation of the EF-hands abolishes the Ca2+ response. DREAM represses transcription from the prodynorphin and c-fos promoters.\",\n      \"method\": \"DNA binding assays, EF-hand mutagenesis, transcriptional reporter assays, protein-DNA interaction\",\n      \"journal\": \"Nature\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1 / Strong — in vitro binding assays, active-site (EF-hand) mutagenesis, transcriptional reporter assays, foundational study replicated by multiple subsequent labs\",\n      \"pmids\": [\"10078534\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2001,\n      \"finding\": \"Calsenilin/DREAM/KChIP3 binds 3 Ca2+ ions with Kd ~14 µM; the Ca2+-free protein forms a tetramer that binds DRE DNA (Kd ~75 nM for first site, ~640 nM for three additional sites), while the Ca2+-bound protein dimerizes and loses DNA binding. The C-terminal EF-hand-containing fragment (residues 65–256) is sufficient for Ca2+-regulated, sequence-specific DRE binding.\",\n      \"method\": \"Equilibrium Ca2+ binding measurements, dynamic light scattering, size exclusion chromatography, isothermal titration calorimetry, electrophoretic mobility shift assay (EMSA)\",\n      \"journal\": \"The Journal of biological chemistry\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1 / Strong — multiple orthogonal biophysical methods (ITC, DLS, SEC, EMSA) in a single rigorous study characterizing Ca2+-dependent oligomerization and DNA binding\",\n      \"pmids\": [\"11535596\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2005,\n      \"finding\": \"Mg2+ and Ca2+ differentially regulate DREAM (KCNIP3): Mg2+ binds constitutively to EF-2 (Kd ~13 µM), stabilizes DREAM as a monomer, and is essential for sequence-specific DRE binding, whereas Ca2+ binds to EF-3 and EF-4, induces protein dimerization, and binding of even a single Ca2+ at EF-3 or EF-4 is sufficient to abolish DNA binding. NMR shows metal-free DREAM adopts a molten-globule-like structure.\",\n      \"method\": \"ITC, size-exclusion chromatography, EMSA with EF-hand point mutants, NMR structural analysis\",\n      \"journal\": \"The Journal of biological chemistry\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1 / Strong — multiple orthogonal methods (ITC, SEC, EMSA, NMR) with systematic mutagenesis of individual EF-hands in a single study\",\n      \"pmids\": [\"15746104\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2001,\n      \"finding\": \"KChIP3/DREAM/calsenilin acts as a modulator of Kv4.3-mediated A-type potassium channels in dopaminergic substantia nigra neurons; Kv4.3L and KChIP3.1 mRNA levels are tightly correlated with A-type channel density and pacemaker frequency, indicating transcriptional control of channel gene expression tunes firing rates.\",\n      \"method\": \"Multiplex and quantitative real-time single-cell RT-PCR combined with slice patch-clamp electrophysiology\",\n      \"journal\": \"The EMBO journal\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — quantitative single-cell RT-PCR coupled with electrophysiology, replicated across many individual neurons with strong linear correlation\",\n      \"pmids\": [\"11598014\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2005,\n      \"finding\": \"KChIP3 and DPP10 simultaneously associate with Kv4.2 proteins to form ternary Kv4.2+KChIP3+DPP10 complexes in rat brain and in heterologous expression systems; the ternary complex produces ISA-like currents with very rapid recovery from inactivation (~18–26 ms) distinct from binary Kv4.2+KChIP3 or Kv4.2+DPP10 channels.\",\n      \"method\": \"Immunoprecipitation from rat brain and Xenopus oocytes, whole-cell electrophysiology in oocytes and CHO cells\",\n      \"journal\": \"The Journal of physiology\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — reciprocal co-IP from native tissue plus functional reconstitution in two heterologous systems\",\n      \"pmids\": [\"16123112\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2004,\n      \"finding\": \"KChIP3 drives Kv4 channel subunit assembly into tetramers within the endoplasmic reticulum, independently of its effects on channel trafficking; KChIP3 rescues surface expression of Kv4.2 zinc-site tetramerization mutants that are otherwise trapped in the ER, and alters gating kinetics (reduced time to peak, faster inactivation, ~3–4 fold slower recovery from inactivation).\",\n      \"method\": \"Expression of Kv4.2 zinc-binding site mutants with KChIP3 in heterologous cells; whole-cell patch-clamp electrophysiology\",\n      \"journal\": \"The Journal of biological chemistry\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — functional rescue of assembly-deficient mutants with KChIP3, single lab, two complementary approaches (trafficking + gating)\",\n      \"pmids\": [\"15485870\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2001,\n      \"finding\": \"Calsenilin/DREAM/KChIP3 has a pro-apoptotic function: antisense-mediated knockdown attenuates apoptosis induced by Fas, Ca2+-ionophore, or thapsigargin; overexpression induces caspase-dependent apoptosis (suppressed by Z-VAD and Bcl-XL) and increases Aβ42 production in cells expressing APPsw, with potentiation by presenilin 2.\",\n      \"method\": \"Antisense oligonucleotide knockdown, overexpression, caspase inhibitor treatment, DNA ladder/cell morphology assays, Aβ ELISA\",\n      \"journal\": \"FASEB journal\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — loss-of-function and gain-of-function with defined biochemical phenotypes, single lab\",\n      \"pmids\": [\"11259376\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2001,\n      \"finding\": \"Mouse calsenilin/DREAM/KChIP3 is encoded by a single unique gene; alternate translation starts and alternative splicing yield multiple isoforms including some lacking EF-hand domains. Expression is restricted to the nervous system and largely coincides with Kv4.2 distribution.\",\n      \"method\": \"Full-length cDNA cloning, genomic analysis, in situ hybridization, RT-PCR, Northern blotting\",\n      \"journal\": \"Molecular and cellular neurosciences\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — direct molecular characterization of gene structure and isoforms, single lab\",\n      \"pmids\": [\"11161465\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2008,\n      \"finding\": \"DREAM (KCNIP3) functions as a negative regulator of CREB-dependent transcription in a Ca2+-dependent manner; loss of DREAM in dream−/− mice enhances CREB-dependent transcription during learning, resulting in markedly enhanced learning, synaptic plasticity, and protection from brain aging.\",\n      \"method\": \"Genetic knockout mouse model, behavioral testing (contextual learning), synaptic plasticity assays, molecular analysis of CREB activity\",\n      \"journal\": \"Current biology\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — clean KO mouse with defined behavioral and molecular phenotypes, single lab\",\n      \"pmids\": [\"19110430\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2009,\n      \"finding\": \"KChIP3 membrane association and interaction with Kv4.2 is significantly decreased while nuclear KChIP3 is increased 6 hours after contextual fear conditioning training. Prodynorphin mRNA is decreased in WT but not KChIP3 KO mice after training, demonstrating KChIP3/DREAM transcriptional repression of prodynorphin during memory consolidation.\",\n      \"method\": \"KChIP3 KO mouse behavioral testing (fear conditioning), subcellular fractionation, co-immunoprecipitation with Kv4.2, RT-PCR for prodynorphin mRNA\",\n      \"journal\": \"Learning & memory\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — KO mouse with behavioral readout plus biochemical localization and target gene analysis, single lab\",\n      \"pmids\": [\"19223600\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2009,\n      \"finding\": \"DREAM directly interacts with the TSH receptor (TSHR) through a protein-protein interaction that promotes coupling between TSHR and Gαs; DREAM overexpression in transgenic mice causes marked thyroid enlargement, and elevated DREAM protein is found in human multinodular goiters.\",\n      \"method\": \"Co-immunoprecipitation (DREAM-TSHR interaction), transgenic mouse model, immunohistochemistry of human goiter tissue\",\n      \"journal\": \"Molecular endocrinology\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — co-IP plus in vivo transgenic model, single lab, two orthogonal approaches\",\n      \"pmids\": [\"19299442\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2010,\n      \"finding\": \"DREAM directly binds to the C0 domain of the NMDAR NR1 subunit; residues 21–40 of the DREAM N-terminus constitute the primary NR1 binding site and DREAM overexpression reduces surface NMDAR expression and NMDAR-mediated current, providing neuroprotection against excitotoxicity.\",\n      \"method\": \"Co-immunoprecipitation, pull-down assays, whole-cell patch-clamp electrophysiology, cell-permeable peptide (TAT-21-40) in vitro and in vivo neuroprotection assays\",\n      \"journal\": \"The Journal of neuroscience\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — direct binding domain mapping, functional current measurements, and in vivo peptide experiment, single lab\",\n      \"pmids\": [\"20519532\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2010,\n      \"finding\": \"KChIP3 is specifically required for Ca2+-regulated secretion in PC12 cells; KChIP3 (but not KChIPs 1, 2, or 4) increases evoked exocytosis following purinergic receptor activation, delays Ca2+ recovery after peak elevation, and downregulates the Na+/Ca2+ exchanger NCX3 via its DREAM transcriptional repressor function.\",\n      \"method\": \"Overexpression of individual KChIP isoforms in PC12 cells, secretion assays, Ca2+ imaging, Western blot for NCX3\",\n      \"journal\": \"The Biochemical journal\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — systematic isoform comparison with functional readouts, single lab\",\n      \"pmids\": [\"18393943\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2010,\n      \"finding\": \"Sumoylation regulates the nuclear localization of DREAM; DREAM interacts with the SUMO-conjugating enzyme Ubc9, and mutations at K26 and K90 prevent DREAM sumoylation and reduce nuclear localization without affecting DRE binding. Sumoylated DREAM is exclusively nuclear in PC12 cells and accumulates in the nucleus upon neuronal differentiation.\",\n      \"method\": \"Yeast two-hybrid (Ubc9 interaction), in vitro sumoylation assays with K-to-R point mutants, subcellular fractionation, immunofluorescence co-localization\",\n      \"journal\": \"Biochimica et biophysica acta\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — in vitro sumoylation with point mutants plus subcellular localization experiments, single lab\",\n      \"pmids\": [\"21070824\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2009,\n      \"finding\": \"DREAM represses prodynorphin and BDNF expression in the spinal cord; transgenic mice overexpressing a Ca2+- and cAMP-insensitive DREAM mutant show reduced spinal BDNF expression and fail to develop spinal sensitization following peripheral inflammation, demonstrating DREAM-dependent regulation of BDNF is required for central sensitization.\",\n      \"method\": \"Transgenic mouse overexpressing dominant-active DREAM, gene expression analysis (prodynorphin, BDNF), in vivo and in vitro spinal cord reflex assays\",\n      \"journal\": \"Molecular pain\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — transgenic dominant-active model with defined gene expression and electrophysiological phenotypes, single lab\",\n      \"pmids\": [\"21167062\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2009,\n      \"finding\": \"DREAM modulates cortical astrogliogenesis via a PACAP-cAMP-Ca2+-DREAM signaling cascade; PACAP stimulates cAMP production and Ca2+ entry, and Ca2+ in turn activates DREAM binding to the GFAP promoter DRE sequence to stimulate GFAP expression during astrocyte differentiation. Loss of DREAM in vivo alters the number of neurons and astrocytes generated during development.\",\n      \"method\": \"Reporter gene assays for GFAP promoter, DREAM knockout analysis, in vitro calcium and cAMP manipulation\",\n      \"journal\": \"Molecular neurobiology\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — promoter binding assay, KO mouse phenotype, pathway epistasis, single lab\",\n      \"pmids\": [\"19238593\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2010,\n      \"finding\": \"KChIP2, KChIP3, and KChIP4 all co-immunoprecipitate with Kv4.2 in adult mouse cortex. Loss of KChIP3 alone modestly reduces IA density in cortical pyramidal neurons, but combined knockdown of KChIP2, 3, and 4 markedly reduces IA and induces Kv current remodeling, revealing interdependent roles of KChIP subunits.\",\n      \"method\": \"Co-immunoprecipitation from mouse cortex, whole-cell patch-clamp in KO neurons, RNAi knockdown of multiple KChIPs\",\n      \"journal\": \"The Journal of neuroscience\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — co-IP from native tissue plus KO and RNAi functional studies, single lab\",\n      \"pmids\": [\"20943905\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2014,\n      \"finding\": \"KChIP3 (KCNIP3) acts as a tonic brake on baseline mucin secretion in colonic goblet cells; KChIP3 associates with mature mucin-filled secretory granules, and ryanodine receptor-dependent intracellular Ca2+ oscillations dissociate KChIP3 from granules to allow exocytosis. Loss of KChIP3 (Kcnip3−/− mice or KD) causes mucin hypersecretion; overexpression or abolishing Ca2+-sensing increases granule association and inhibits baseline secretion.\",\n      \"method\": \"Kcnip3−/− mice (colon phenotype), human differentiated colonic cell line knockdown and overexpression, co-localization with mucin granules, Ca2+ imaging with ryanodine receptor manipulation\",\n      \"journal\": \"eLife\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — KO mouse phenotype, multiple cell-based gain/loss-of-function, direct granule co-localization and Ca2+ manipulation, two orthogonal model systems\",\n      \"pmids\": [\"30272559\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2014,\n      \"finding\": \"NS5806 binds at a hydrophobic site on the C-terminus of KChIP3 in a Ca2+-dependent manner (Kd 2–5 µM in Ca2+-bound form) and increases the affinity of KChIP3 for the hydrophobic N-terminus of Kv4.3. Mutation of Tyr-174 or Phe-218 on KChIP3 abolishes this drug-induced enhancement of Kv4.3 binding.\",\n      \"method\": \"Fluorescence spectroscopy, isothermal titration calorimetry, docking simulations, site-directed mutagenesis of KChIP3\",\n      \"journal\": \"The Journal of biological chemistry\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 1 / Moderate — ITC and fluorescence binding assays with mutagenesis, single lab\",\n      \"pmids\": [\"25228688\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2018,\n      \"finding\": \"The N-terminal 31–50 fragment of KChIP3 binds directly to both the intracellular N- and C-termini of TRPV1, reducing TRPV1 surface localization and Ca2+ influx. A cell-permeable TAT-31-50 peptide reduces TRPV1-mediated Ca2+ influx in DRG neurons and alleviates thermal hyperalgesia in a CFA-induced inflammatory pain model, independently of endogenous KChIP3.\",\n      \"method\": \"Co-IP/pull-down mapping of KChIP3-TRPV1 interaction domain, surface TRPV1 biotinylation assay, Ca2+ imaging in DRG neurons, intrathecal/intraplantar TAT peptide injection in Kcnip3−/− and WT rats\",\n      \"journal\": \"The Journal of neuroscience\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — direct domain mapping by binding assays, functional readout in native neurons, validated in KO animals, multiple orthogonal approaches\",\n      \"pmids\": [\"29335353\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2021,\n      \"finding\": \"DREAM (KCNIP3) in neutrophils promotes neutrophil recruitment to sites of TNF-α-induced vascular inflammation; DREAM represses expression of A20 (a NF-κB negative regulator) and enhances IKKβ phosphorylation and pro-inflammatory molecule expression after TNF-α stimulation. DREAM-dependent IKKβ activation mediates SNAP-23 phosphorylation and degranulation. Sickle cell disease mice lacking DREAM show reduced vaso-occlusive events.\",\n      \"method\": \"Intravital microscopy, genetic DREAM knockout in mice, pharmacological IKKβ inhibition, SNAP-23 phosphorylation assays, β2 integrin activity assay, HL-60 cell knockdown\",\n      \"journal\": \"The Journal of experimental medicine\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — in vivo intravital microscopy, genetic KO, pharmacological epistasis, multiple defined molecular pathway steps, replicated in mouse model of disease\",\n      \"pmids\": [\"34751735\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2022,\n      \"finding\": \"DREAM represses A20 (TNFAIP3) expression in fibroblasts; DREAM-null mice have elevated A20 and are protected from fibrosis, while mice with fibroblast-specific A20 deletion develop SSc-like fibrosis. TGF-β induces A20 expression in DREAM-null but not WT fibroblasts, establishing a DREAM-A20 regulatory axis governing fibroblast activation and organ fibrosis.\",\n      \"method\": \"DREAM-null mouse model, fibroblast-specific A20 conditional KO, A20 expression analysis, TGF-β stimulation assays, bleomycin fibrosis model\",\n      \"journal\": \"Nature communications\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — genetic KO and conditional KO in mice with defined molecular pathway, multiple disease models, replicated across cell and animal systems\",\n      \"pmids\": [\"36289219\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2019,\n      \"finding\": \"Global Kcnip3 knockout in rats enhances pain sensitivity in both acute nociceptive and chronic inflammatory pain models and exacerbates negative emotions (anxiety, depression-like behavior, pain aversion). Transcriptomic profiling of KO rat forebrain reveals upregulation of genes associated with dopamine neurotransmission and neural development.\",\n      \"method\": \"CRISPR-generated Kcnip3−/− rat model, nociceptive behavioral testing, affective/anxiety behavioral tests, RNA-seq transcriptomic profiling, qPCR validation\",\n      \"journal\": \"Frontiers in molecular neuroscience\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — clean KO rat with defined behavioral phenotypes and transcriptome-level downstream analysis, single lab\",\n      \"pmids\": [\"30740043\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2016,\n      \"finding\": \"FMRP mediates chronic ethanol-induced changes in KChIP3 expression in the hippocampus; chronic intermittent ethanol increases phosphorylation of FMRP at S499 (via S6K1), reduces KChIP3 protein while increasing KChIP3 mRNA association with FMRP, and S6K1 inhibition prevents these changes, indicating FMRP translational suppression of KChIP3 is part of homeostatic plasticity.\",\n      \"method\": \"In vivo CIE exposure, immunoblot, FMRP-bound mRNA immunoprecipitation, S6K1 inhibitor treatment in hippocampal slice cultures\",\n      \"journal\": \"Alcoholism, clinical and experimental research\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — in vivo and in vitro experiments with pharmacological epistasis, two model systems, single lab\",\n      \"pmids\": [\"27147118\"],\n      \"is_preprint\": false\n    }\n  ],\n  \"current_model\": \"KCNIP3 (DREAM/KChIP3/calsenilin) is a multifunctional neuronal calcium sensor protein that, in its Ca2+-free tetrameric state, binds DRE DNA sequences and acts as a transcriptional repressor of target genes including prodynorphin, c-fos, BDNF, and A20; Ca2+ binding (at EF-hands 3 and 4) dissociates DNA binding by inducing dimerization, while Mg2+ binding at EF-2 is required for sequence-specific DNA binding. In the cytoplasm and at the membrane, KChIP3 associates with Kv4-family α-subunits (along with DPP proteins) to form ternary channel complexes that regulate A-type K+ current gating and surface expression, and also interacts with TRPV1, NMDARs, TSH receptor, and mucin secretory granules to modulate their function. Its sumoylation at K26 and K90 controls nuclear localization, and its nuclear activity is further regulated by cAMP/PACAP signaling and FMRP-mediated translational control.\"\n}\n```","stage2_raw":"{\n  \"mechanistic_narrative\": \"KCNIP3 (DREAM/KChIP3/calsenilin) is a bifunctional neuronal calcium sensor that couples intracellular Ca2+ signals to both gene transcription and ion channel behavior [#0, #3]. In its metal-regulated form it acts as a sequence-specific transcriptional repressor: the Ca2+-free protein assembles into a DNA-binding tetramer that engages the downstream regulatory element (DRE), and Ca2+ binding to EF-hands 3 and 4 drives dimerization and release from DNA, while constitutive Mg2+ binding at EF-2 stabilizes the monomer required for sequence-specific DRE recognition [#0, #1, #2]. Through this repressor activity DREAM controls a defined set of target genes including prodynorphin, BDNF, GFAP, the Na+/Ca2+ exchanger NCX3, and the NF-kB inhibitor A20, thereby shaping pain processing and central sensitization [#9, #14], astrogliogenesis downstream of PACAP-cAMP-Ca2+ signaling [#15], Ca2+-regulated secretion [#12], and inflammatory and fibrotic responses via repression of A20 [#20, #21]. In parallel, KChIP3 functions as a cytoplasmic/membrane auxiliary subunit of Kv4-family A-type potassium channels, promoting Kv4 tetramer assembly in the ER, rescuing surface expression, and tuning gating kinetics, and it forms ternary Kv4.2-KChIP3-DPP10 complexes that set firing properties of neurons [#3, #4, #5, #16]. Beyond channels, KChIP3 directly binds and regulates surface trafficking of TRPV1 and the NMDAR NR1 subunit to limit Ca2+ influx and confer neuroprotection [#11, #19], couples to the TSH receptor [#10], and acts as a Ca2+-sensitive brake on mucin granule exocytosis in colonic goblet cells [#17]. Its subcellular partitioning is controlled by sumoylation at K26 and K90, which promotes nuclear accumulation [#13], and its expression is subject to FMRP-mediated translational suppression during homeostatic plasticity [#23]. Genetic loss of KCNIP3 enhances learning and synaptic plasticity [#8] and increases pain sensitivity and negative affect [#22], underscoring its role as a repressive set-point regulator across neuronal and non-neuronal systems.\",\n  \"teleology\": [\n    {\n      \"year\": 1999,\n      \"claim\": \"Established the founding mechanism: DREAM is a Ca2+-regulated transcriptional repressor that binds the DRE DNA element through EF-hand-dependent Ca2+ sensing, defining a direct link between calcium signaling and gene repression.\",\n      \"evidence\": \"DNA-binding assays, EF-hand mutagenesis, and transcriptional reporter assays on prodynorphin and c-fos promoters\",\n      \"pmids\": [\"10078534\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Did not resolve the oligomeric basis of DNA binding versus Ca2+ release\", \"In vivo target gene set not yet defined\"]\n    },\n    {\n      \"year\": 2001,\n      \"claim\": \"Resolved the biophysical switch: the Ca2+-free protein is a DNA-binding tetramer that dimerizes and loses DNA binding upon Ca2+ loading, explaining how calcium toggles repressor activity.\",\n      \"evidence\": \"Equilibrium Ca2+ binding, DLS, SEC, ITC, and EMSA on full-length and C-terminal fragments\",\n      \"pmids\": [\"11535596\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Did not address the role of other divalent cations\", \"No structural model of the DNA-bound tetramer\"]\n    },\n    {\n      \"year\": 2005,\n      \"claim\": \"Distinguished metal-specific roles, showing Mg2+ at EF-2 is constitutively bound and required for sequence-specific DNA binding while Ca2+ at EF-3/EF-4 drives dimerization, refining the dual-metal regulatory logic.\",\n      \"evidence\": \"ITC, SEC, EMSA with EF-hand point mutants, and NMR structural analysis\",\n      \"pmids\": [\"15746104\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Molten-globule apo state not crystallographically resolved\", \"Physiological Mg2+/Ca2+ competition in cells not measured\"]\n    },\n    {\n      \"year\": 2001,\n      \"claim\": \"Defined the channel arm of KChIP3 function and its tissue restriction, linking KChIP3/Kv4 expression to A-type K+ current density and neuronal firing rates and showing a nervous-system-restricted gene with multiple isoforms.\",\n      \"evidence\": \"Single-cell RT-PCR with slice patch-clamp in dopaminergic neurons; cDNA cloning, in situ hybridization, and Northern blot for isoform/expression mapping\",\n      \"pmids\": [\"11598014\", \"11161465\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Causal direction between channel expression and firing only correlational in [#3]\", \"Functional roles of EF-hand-lacking isoforms unresolved\"]\n    },\n    {\n      \"year\": 2005,\n      \"claim\": \"Mapped how KChIP3 builds and remodels Kv4 channels, showing it drives ER tetramer assembly, rescues trafficking-deficient mutants, and forms ternary Kv4.2-KChIP3-DPP10 complexes with distinct gating.\",\n      \"evidence\": \"Co-IP from rat brain and oocytes, expression of zinc-site assembly mutants, and whole-cell electrophysiology in heterologous systems\",\n      \"pmids\": [\"16123112\", \"15485870\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"Stoichiometry of native ternary complexes in brain not quantified\", \"Structural basis of assembly chaperone activity unknown\"]\n    },\n    {\n      \"year\": 2001,\n      \"claim\": \"Identified a pro-apoptotic and amyloidogenic role, connecting calsenilin/DREAM to caspase-dependent death and Abeta42 production with presenilin 2.\",\n      \"evidence\": \"Antisense knockdown, overexpression, caspase inhibitor treatment, and Abeta ELISA\",\n      \"pmids\": [\"11259376\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"Mechanism linking transcriptional/channel functions to apoptosis not defined\", \"Single lab, no genetic validation\"]\n    },\n    {\n      \"year\": 2008,\n      \"claim\": \"Showed in vivo that DREAM negatively regulates CREB-dependent transcription, with knockout enhancing learning, synaptic plasticity, and protection from aging.\",\n      \"evidence\": \"dream-/- knockout mice with behavioral, plasticity, and CREB-activity assays\",\n      \"pmids\": [\"19110430\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"Direct DRE targets mediating the cognitive phenotype not enumerated\", \"Distinction from channel-dependent effects unresolved\"]\n    },\n    {\n      \"year\": 2009,\n      \"claim\": \"Demonstrated activity-dependent nuclear redistribution and target repression, linking fear conditioning to loss of Kv4.2 membrane association, increased nuclear KChIP3, and prodynorphin repression.\",\n      \"evidence\": \"KChIP3 KO behavior, subcellular fractionation, Kv4.2 co-IP, and prodynorphin RT-PCR\",\n      \"pmids\": [\"19223600\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"Signal triggering nuclear translocation not identified\", \"Whether redistribution is causal or correlative not established\"]\n    },\n    {\n      \"year\": 2009,\n      \"claim\": \"Extended the transcriptional repressor role to pain and glial development, showing DREAM represses spinal prodynorphin/BDNF for central sensitization and activates GFAP via a PACAP-cAMP-Ca2+ cascade in astrogliogenesis.\",\n      \"evidence\": \"Transgenic dominant-active DREAM mice with spinal reflex and gene expression assays; GFAP promoter reporter and KO analysis\",\n      \"pmids\": [\"21167062\", \"19238593\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"DREAM acting as activator vs repressor at GFAP not mechanistically reconciled\", \"cAMP-responsiveness structural basis not mapped\"]\n    },\n    {\n      \"year\": 2010,\n      \"claim\": \"Broadened the partner repertoire beyond channels, mapping direct interactions with TSHR, the NMDAR NR1 C0 domain, and a role in Ca2+-regulated secretion via NCX3 repression.\",\n      \"evidence\": \"Co-IP, pull-down domain mapping, electrophysiology, transgenic mice, and PC12 secretion/Ca2+ imaging with isoform comparison\",\n      \"pmids\": [\"19299442\", \"20519532\", \"18393943\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"Which interactions are direct vs complex-mediated not uniformly tested\", \"Stoichiometry and competition among membrane partners unknown\"]\n    },\n    {\n      \"year\": 2010,\n      \"claim\": \"Defined regulation of KChIP3 subcellular targeting through sumoylation at K26/K90 via Ubc9, controlling nuclear accumulation without altering DNA binding.\",\n      \"evidence\": \"Yeast two-hybrid, in vitro sumoylation with K-to-R mutants, and subcellular fractionation/immunofluorescence\",\n      \"pmids\": [\"21070824\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"SUMO isopeptidase counter-regulation not identified\", \"Link between sumoylation and activity-dependent translocation unresolved\"]\n    },\n    {\n      \"year\": 2010,\n      \"claim\": \"Clarified KChIP subunit redundancy in cortex, showing KChIP2/3/4 jointly associate with Kv4.2 and that combined loss markedly remodels A-type current beyond single KChIP3 deletion.\",\n      \"evidence\": \"Co-IP from mouse cortex with KO and multi-KChIP RNAi plus patch-clamp\",\n      \"pmids\": [\"20943905\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"Subunit-specific contributions to gating not isolated\", \"Compensatory mechanisms among KChIPs not defined\"]\n    },\n    {\n      \"year\": 2014,\n      \"claim\": \"Established a non-neuronal secretory role and a druggable Kv4 interface, showing KChIP3 is a Ca2+-sensitive brake on mucin granule exocytosis and that NS5806 binds the Ca2+-bound C-terminus to enhance Kv4.3 affinity.\",\n      \"evidence\": \"Kcnip3-/- mice and colonic cell gain/loss-of-function with granule co-localization; fluorescence/ITC binding and KChIP3 mutagenesis (Tyr-174, Phe-218)\",\n      \"pmids\": [\"30272559\", \"25228688\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Granule-association partner of KChIP3 not identified\", \"Whether the NS5806 site is exploited physiologically unknown\"]\n    },\n    {\n      \"year\": 2018,\n      \"claim\": \"Mapped a direct KChIP3-TRPV1 interaction and showed a derived peptide reduces TRPV1 surface expression and inflammatory thermal hyperalgesia independently of endogenous KChIP3.\",\n      \"evidence\": \"Domain-mapping co-IP/pull-down, surface biotinylation, DRG Ca2+ imaging, and TAT-31-50 peptide injection in WT and Kcnip3-/- rats\",\n      \"pmids\": [\"29335353\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Endogenous KChIP3 regulation of TRPV1 in vivo not isolated\", \"Structural basis of dual N/C-terminal TRPV1 binding unresolved\"]\n    },\n    {\n      \"year\": 2021,\n      \"claim\": \"Defined a pro-inflammatory transcriptional axis, showing neutrophil DREAM represses A20 to enhance IKKbeta activation, SNAP-23 phosphorylation, degranulation, and vaso-occlusion in sickle cell disease.\",\n      \"evidence\": \"Intravital microscopy, DREAM KO mice, IKKbeta inhibition, phosphorylation assays, and HL-60 knockdown\",\n      \"pmids\": [\"34751735\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Direct DRE binding at the A20 promoter in neutrophils not shown\", \"Ca2+ trigger for DREAM in this context not defined\"]\n    },\n    {\n      \"year\": 2022,\n      \"claim\": \"Generalized the DREAM-A20 axis to fibrosis, showing DREAM-null mice have elevated A20 and resist fibrosis while fibroblast A20 deletion is sufficient to drive SSc-like disease.\",\n      \"evidence\": \"DREAM-null and fibroblast-specific A20 conditional KO mice, TGF-beta stimulation, and bleomycin fibrosis models\",\n      \"pmids\": [\"36289219\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Whether DREAM represses A20 via canonical DRE binding in fibroblasts not confirmed\", \"Upstream Ca2+ regulation in fibroblasts unaddressed\"]\n    },\n    {\n      \"year\": 2019,\n      \"claim\": \"Established whole-organism consequences of KCNIP3 loss, showing KO rats have enhanced pain and negative affect with transcriptomic upregulation of dopamine and neurodevelopmental genes.\",\n      \"evidence\": \"CRISPR Kcnip3-/- rats with nociceptive and affective behavior plus forebrain RNA-seq\",\n      \"pmids\": [\"30740043\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"Which transcriptomic changes are direct DREAM targets unknown\", \"Circuit basis of affective phenotype undefined\"]\n    },\n    {\n      \"year\": 2016,\n      \"claim\": \"Identified upstream translational control of KChIP3, showing FMRP suppresses KChIP3 translation via S6K1-dependent S499 phosphorylation during ethanol-induced homeostatic plasticity.\",\n      \"evidence\": \"In vivo chronic intermittent ethanol, immunoblot, FMRP-mRNA IP, and S6K1 inhibition in hippocampal slices\",\n      \"pmids\": [\"27147118\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"Functional consequence of reduced KChIP3 on channel/transcription not measured here\", \"Direct FMRP binding site on KChIP3 mRNA not mapped\"]\n    },\n    {\n      \"year\": null,\n      \"claim\": \"How DREAM's nuclear transcriptional repressor function is mechanistically coordinated with its cytoplasmic/membrane channel- and receptor-modulating roles, and what signals dictate the partitioning, remains unresolved.\",\n      \"evidence\": \"\",\n      \"pmids\": [],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"No integrated model linking activity-dependent translocation, sumoylation, and target-gene selection\", \"Structure of the DNA-bound vs partner-bound states not determined\"]\n    }\n  ],\n  \"mechanism_profile\": {\n    \"molecular_activity\": [\n      {\"term_id\": \"GO:0140110\", \"supporting_discovery_ids\": [0, 1, 2, 9, 14, 15, 20, 21]},\n      {\"term_id\": \"GO:0003677\", \"supporting_discovery_ids\": [0, 1, 2]},\n      {\"term_id\": \"GO:0140299\", \"supporting_discovery_ids\": [0, 1, 2, 17]},\n      {\"term_id\": \"GO:0098772\", \"supporting_discovery_ids\": [3, 4, 5, 11, 17, 19]},\n      {\"term_id\": \"GO:0060089\", \"supporting_discovery_ids\": [0, 17]}\n    ],\n    \"localization\": [\n      {\"term_id\": \"GO:0005634\", \"supporting_discovery_ids\": [0, 9, 13]},\n      {\"term_id\": \"GO:0005886\", \"supporting_discovery_ids\": [4, 9, 11, 19]},\n      {\"term_id\": \"GO:0005783\", \"supporting_discovery_ids\": [5]},\n      {\"term_id\": \"GO:0031410\", \"supporting_discovery_ids\": [17]},\n      {\"term_id\": \"GO:0005829\", \"supporting_discovery_ids\": [9, 13]}\n    ],\n    \"pathway\": [\n      {\"term_id\": \"R-HSA-74160\", \"supporting_discovery_ids\": [0, 9, 14, 21]},\n      {\"term_id\": \"R-HSA-112316\", \"supporting_discovery_ids\": [3, 4, 16]},\n      {\"term_id\": \"R-HSA-168256\", \"supporting_discovery_ids\": [20, 21]},\n      {\"term_id\": \"R-HSA-5357801\", \"supporting_discovery_ids\": [6]},\n      {\"term_id\": \"R-HSA-162582\", \"supporting_discovery_ids\": [10, 15, 20]}\n    ],\n    \"complexes\": [\n      \"Kv4.2-KChIP3-DPP10 ternary channel complex\"\n    ],\n    \"partners\": [\n      \"KCND2\",\n      \"KCND3\",\n      \"DPP10\",\n      \"GRIN1\",\n      \"TRPV1\",\n      \"TSHR\",\n      \"UBE2I\",\n      \"FMR1\"\n    ],\n    \"other_free_text\": []\n  }\n}","audit_flag":null,"evaluation":{"pairwise":"win","faith_supported":7,"faith_total":7,"faith_pct":100.0}}