Affinage

NR2E3

Photoreceptor-specific nuclear receptor · UniProt Q9Y5X4

Length
410 aa
Mass
44.7 kDa
Annotated
2026-06-10
100 papers in source corpus 38 papers cited in narrative 38 extracted findings
Cross-family judge vs UniProt: Affinage preferred faithfulness: 9/9 claims corpus-supported (100%)

Mechanistic narrative

Synthesis pass · prose summary of the discoveries below

NR2E3 is a photoreceptor-specific orphan nuclear receptor that acts as a master switch in rod versus cone cell-fate determination during retinogenesis, functioning in late retinal progenitors and post-mitotic precursors to enforce the rod program (PMID:10655056, PMID:11487564, PMID:21813656). Mechanistically it is a dual transcriptional regulator: it represses cone-specific genes—including S- and M-cone opsins and cone phototransduction genes—while activating a subset of rod genes such as rhodopsin (PMID:15634773, PMID:15689355, PMID:16868010). NR2E3 binds a defined DNA element and physically interacts with the homeodomain factor CRX through their DNA-binding domains to co-occupy rod and cone gene promoters, enhancing rhodopsin transcription while repressing cone opsins (PMID:15689355). It operates downstream of NRL, which directly binds and activates the Nr2e3 promoter synergistically with CRX, and it participates in a multi-protein regulatory complex that also includes the orphan receptor NR1D1 (Rev-erbα) (PMID:15190009, PMID:18294621). NR2E3 directly targets developmental transcription factors and mature phototransduction genes including Prph2, RXRG, and GNB1 (PMID:19379737, PMID:40317544, PMID:18763016). Its apo ligand-binding domain crystallizes in a dimeric, auto-repressed conformation in which bulky hydrophobic residues fill the pocket and the AF2 helix occupies the cofactor site, with dimerization and AF2 integrity required for repressor function; biliverdin has been identified as an endogenous LBD ligand (PMID:24069298, PMID:35508617). Loss of NR2E3 causes rod precursors to adopt a default S-cone fate, producing the enhanced S-cone syndrome phenotype and rd7 retinal dysplasia, whereas the dominant-negative G56R mutation causes autosomal dominant retinitis pigmentosa by retaining CRX binding while abolishing DNA binding, thereby titrating CRX (PMID:10655056, PMID:10805811, PMID:17564971, PMID:21813656). Loss of NR2E3 generates hybrid rods that potently resist degeneration across multiple disease models, and Nr2e3 delivery acts as a broad-spectrum modifier of retinal homeostasis (PMID:32123325, PMID:38442152, PMID:40397675). Beyond the retina, NR2E3 complexes with p53 and p300 to stimulate p53 acetylation and stability, regulates ESR1 transcription with PIAS3 recruitment in breast cancer, and maintains epigenetic homeostasis to suppress WNT/β-catenin signaling in the liver, acting as a tumor suppressor (PMID:22025681, PMID:22174013, PMID:38790135, PMID:39809731).

Mechanistic history

Synthesis pass · year-by-year structured walk · 16 steps
  1. 2000 High

    Establishing NR2E3 as a photoreceptor transcription factor whose loss causes human disease answered whether this orphan receptor has a dedicated retinal role.

    Evidence Mutation analysis of enhanced S-cone syndrome patients with outer nuclear layer expression localization; independently, identification of the rd7 mouse Nr2e3 deletion causing retinal dysplasia

    PMID:10655056 PMID:10805811

    Open questions at the time
    • Molecular targets of NR2E3 not yet defined
    • Cellular basis of the S-cone phenotype unresolved
  2. 2001 High

    Defining where NR2E3 acts in the lineage answered whether the S-cone excess arises from fate switching versus proliferation.

    Evidence Histology and in situ analysis of rd7 retinas showing ectopic mitotic progenitors and excess cones

    PMID:11487564

    Open questions at the time
    • Did not distinguish proliferation from default fate adoption
    • Direct transcriptional targets unknown
  3. 2004 High

    Identifying NR2E3 protein partners answered how it integrates into the retinal transcriptional machinery.

    Evidence Yeast two-hybrid, GST pulldown, and reciprocal co-IP from bovine retinal extract showing NR2E3-NR1D1 interaction within an NRL/CRX complex with synergistic promoter activation

    PMID:15190009

    Open questions at the time
    • Stoichiometry and architecture of the complex unknown
    • Direct DNA contacts not mapped
  4. 2005 High

    Demonstrating the dual repressor/activator activity and CRX co-occupancy answered the molecular logic of how NR2E3 enforces rod identity.

    Evidence SELEX-derived binding site, transfection reporter assays, and ChIP showing NR2E3-CRX co-occupancy of rod and cone promoters with opposite outcomes; disease mutants defective in repression

    PMID:15634773 PMID:15689355

    Open questions at the time
    • How a single complex switches between activation and repression unresolved
    • Cofactor identity unknown
  5. 2006 High

    In vivo epistasis answered whether NR2E3 is sufficient to suppress the cone program and where it sits relative to NRL.

    Evidence Transgenic NR2E3 overexpression in Nrl-/- retina and FACS-purified photoreceptor gene profiling showing cone suppression and activation of a rod gene subset

    PMID:16868010

    Open questions at the time
    • Timing/level dependence not fully mechanistically explained
    • Direct vs indirect targets not all separated
  6. 2007 Medium

    Distinguishing adRP from ESCS mechanisms answered why different NR2E3 mutations produce dominant versus recessive disease.

    Evidence adRP family mutation analysis with BRET and reporter assays showing G56R retains CRX binding but lacks DNA binding, acting as a dominant negative; cone-ablation epistasis showing excess cones cause retinal folding

    PMID:17266784 PMID:17525215 PMID:17564971

    Open questions at the time
    • Structural basis of selective DNA-binding loss undefined
    • In vivo validation of CRX titration mechanism limited to cell assays
  7. 2008 High

    Placing NR2E3 in the regulatory hierarchy and identifying direct targets answered upstream control and downstream effectors.

    Evidence ChIP showing NRL binds the Nr2e3 promoter and transgenic epistasis placing Nr2e3 downstream of NRL; ChIP identifying Prph2 as a direct target reduced in rd7

    PMID:18294621 PMID:18763016

    Open questions at the time
    • Full target catalog incomplete
    • Contribution of individual targets to degeneration not quantified
  8. 2009 Medium

    Systematic variant analysis answered how disparate mutations across DBD and LBD converge on dysfunction.

    Evidence Site-directed mutagenesis of 25 variants with localization, gel-shift, reporter, and co-IP assays; BRET2 dimerization assays; ChIP defining developmental and mature direct targets

    PMID:19006237 PMID:19379737 PMID:19823680 PMID:19898638

    Open questions at the time
    • Structural mechanism still inferred, not solved
    • Corepressor recruitment partially characterized
  9. 2011 Medium

    Defining the developmental origin of excess cones and extending NR2E3 beyond the retina answered both the fate question and its broader biology.

    Evidence Birthdating and transgenic rescue showing early-born precursors adopt default cone fate; co-IP showing NR2E3-p53-p300 complexes stimulating p53; ChIP showing NR2E3-PIAS3 regulation of ESR1; NR1D1 co-expression/co-targeting

    PMID:21408158 PMID:21813656 PMID:22025681 PMID:22174013

    Open questions at the time
    • Generality of non-retinal roles across tissues unclear
    • Direct p53 binding site not mapped
  10. 2013 High

    Solving the apo-LBD structure answered the structural basis of NR2E3's auto-repressed, ligand-independent behavior.

    Evidence 2.8 Å X-ray crystallography with structure-guided mutagenesis showing AF2 occupies the cofactor site and dimer/AF2 interfaces are required for repression

    PMID:24069298

    Open questions at the time
    • No liganded or DNA-bound structure
    • How ligand binding would relieve auto-repression untested
  11. 2015 Medium

    Mapping dimerization and heterodimerization partners answered the receptor's interaction selectivity.

    Evidence BRET2 assays defining LBD variants that abolish homodimerization, retain CRX but alter NRL/NR1D1 interaction, and exclude TLX/RXRα heterodimers; later LBD heterodimerization with PPARγ and TRβ with native retinal co-IP

    PMID:25703721 PMID:28300834

    Open questions at the time
    • Functional consequence of PPARγ/TRβ heterodimers in vivo unclear
    • Single-method dependence on BRET2
  12. 2020 Medium

    Testing NR2E3 as therapy answered whether modulating it influences degeneration broadly.

    Evidence Subretinal Nr2e3 delivery in five RP mouse models and earlier Nr1d1 rescue of rd7, with ERG, histology, and molecular network resetting

    PMID:24498227 PMID:32123325

    Open questions at the time
    • Mechanism of cross-model benefit incompletely defined
    • Durability and human translatability untested in these studies
  13. 2021 High

    Germline knockout neuroprotection answered the paradox that NR2E3 loss can preserve rather than destroy photoreceptors.

    Evidence Germline Nr2e3 knockout generating hybrid rods that resist degeneration across light damage, Rho-/-, and rd10 models with preserved cone outcomes

    PMID:38442152

    Open questions at the time
    • Molecular basis of hybrid-rod resilience not fully defined here
    • Applicability to other degeneration mechanisms unknown
  14. 2022 Medium

    Identifying biliverdin answered the long-standing question of whether this orphan receptor has an endogenous ligand.

    Evidence Ligand-binding assay of biliverdin to NR2E3 LBD from retinal extracts, NR2E3-dependent reporter induction, and zebrafish biliverdin-synthesis inhibition with rescue

    PMID:35508617

    Open questions at the time
    • Structural mode of biliverdin binding unresolved
    • Physiological regulation of biliverdin levels in rods unclear
  15. 2024 High

    Human iPSC organoids and isoform/domain dissection answered whether human NR2E3 biology matches rodent models and what protein regions drive disease.

    Evidence scRNA-seq of NR2E3-null patient iPSC retinal organoids revealing human-specific rod developmental branch point; CRISPR alleles isolating dimerization and AF2 domains producing distinct ESCS-like vs RP-like phenotypes

    PMID:33007388 PMID:38652563

    Open questions at the time
    • Reasons for human-rodent divergence not mechanistically resolved
    • Short-isoform regulation in vivo not fully defined
  16. 2025 High

    Mechanism-specific knockout protection and new direct targets refined how NR2E3 loss confers rescue and broadened its target network.

    Evidence Acute Nr2e3 knockout epistasis showing Pde6c-dependent rescue in Pde6b mutants but failure in Rhodopsin models; ChIP showing direct RXRG promoter binding impaired by R296Q; isoform-specific p53 activation and agonist 11a in tumor tissue

    PMID:39809731 PMID:40317544 PMID:40397675

    Open questions at the time
    • Predictive rules for which degenerations respond unclear
    • Therapeutic window of agonist 11a undefined

Open questions

Synthesis pass · forward-looking unresolved questions
  • How biliverdin binding, the auto-repressed LBD conformation, and partner switching (CRX vs PPARγ/p53) are coordinated to toggle NR2E3 between rod activator, cone repressor, and tumor-suppressive functions remains unresolved.
  • No ligand-bound or DNA-bound structure
  • No unified model linking ligand state to target selection
  • Non-retinal roles lack in vivo target maps

Mechanism profile

Synthesis pass · controlled-vocabulary classification · explore literature graph →
Molecular activity
GO:0140110 transcription regulator activity 7 GO:0003677 DNA binding 5 GO:0098772 molecular function regulator activity 2 GO:0008289 lipid binding 1
Localization
GO:0000228 nuclear chromosome 4 GO:0005634 nucleus 3
Pathway
R-HSA-1266738 Developmental Biology 5 R-HSA-74160 Gene expression (Transcription) 4 R-HSA-5357801 Programmed Cell Death 3 R-HSA-9709957 Sensory Perception 3 R-HSA-162582 Signal Transduction 1
Partners
CRXNR1D1NRLP300P53PIAS3PPARGTHRB
Complex memberships
NR2E3-CRX co-occupancy complexNR2E3-p53-p300 complexNRL/CRX/NR2E3/NR1D1 retinal regulatory complex

Evidence

Reading pass · 38 per-paper findings extracted from the source corpus
Year Finding Method Journal Conf PMIDs
2000 NR2E3 is expressed exclusively in the outer nuclear layer of the human retina and mutations in NR2E3 cause enhanced S-cone syndrome, establishing NR2E3 as a ligand-dependent transcription factor required for photoreceptor cell fate determination during retinogenesis. Mutation analysis of ESCS patient cohort, expression analysis by in situ hybridization/immunohistochemistry Nature genetics High 10655056
2000 A 380-nt deletion in the coding region of rd7 mouse Nr2e3 mRNA creates a frameshift and premature stop codon, eliminating part of the DNA-binding domain; this deletion causes retinal dysplasia and degeneration, establishing that Nr2e3 expression is critical for normal photoreceptor development and function. RT-PCR, Northern analysis, direct sequencing, genetic mapping of rd7 locus Proceedings of the National Academy of Sciences of the United States of America High 10805811
2001 Nr2e3 deficiency in rd7 mice results from a splicing error caused by a genomic deletion; loss of Nr2e3 leads to excess cone cell proliferation from ectopic mitotic progenitor cells in the outer nuclear layer, establishing that Nr2e3 functions in late retinal progenitors to suppress cone cell generation. In situ hybridization, immunohistochemical staining, histological analysis of rd7 retinas Human molecular genetics High 11487564
2004 NR2E3 interacts with orphan nuclear receptor NR1D1 (Rev-erbα), as confirmed by GST pulldown and co-immunoprecipitation; NR2E3, NR1D1, NRL, and CRX can all be co-immunoprecipitated from bovine retinal nuclear extract, suggesting they exist in a multi-protein transcriptional regulatory complex in vivo. NR2E3 and NR1D1 synergistically activate rod phototransduction gene promoters with NRL and CRX. Yeast two-hybrid screening, GST pulldown, co-immunoprecipitation from bovine retinal extract, transient transfection promoter activity assays Human molecular genetics High 15190009
2005 Nr2e3 is expressed exclusively in rod photoreceptors in the mature retina. Using cycles of binding to recombinant Nr2e3, an optimal DNA-binding site was identified. Nr2e3 functions as a repressor of multiple cone-specific genes in rod photoreceptor cells, either directly or indirectly. A disease-associated point mutation shows defective transcriptional repressor activity in transfected cells. Protein localization (immunohistochemistry in mammals and fish), SELEX-like DNA-binding site identification with recombinant Nr2e3, transient transfection transcriptional activity assays, gene expression analysis of rd7 retinas The Journal of neuroscience High 15634773
2005 Nr2e3 physically interacts with CRX through their respective DNA-binding domains, as shown by yeast two-hybrid and co-immunoprecipitation. ChIP demonstrated that Nr2e3 and CRX co-occupy promoters of rod and cone genes in rod photoreceptors, and Nr2e3 promoter occupancy is CRX-dependent. Nr2e3 enhances rhodopsin transcription but represses S- and M-cone opsin transcription when interacting with CRX. ESCS-associated NR2E3 mutants show defects in CRX interaction and/or transcriptional regulatory function. Yeast two-hybrid, co-immunoprecipitation, chromatin immunoprecipitation (ChIP) on mouse retina, transient transfection assays in HEK293 cells, quantitative RT-PCR of rd7 retina Human molecular genetics High 15689355
2006 Ectopic expression of NR2E3 in the Nrl-/- retina completely suppressed cone differentiation and generated morphologically rod-like photoreceptors, confirming NR2E3 as a strong suppressor of cone genes. Gene profiling of FACS-purified photoreceptors confirmed NR2E3 as an activator of only a subset of rod genes (including rhodopsin) in vivo. The dual regulatory function of NR2E3 was not strictly dependent on the presence of NRL and/or CRX but on the timing and level of expression. Transgenic mouse overexpression in Nrl-/- background, FACS-purified photoreceptor gene profiling, immunohistochemistry Human molecular genetics High 16868010
2006 NR2E3 is expressed in late retinal progenitors and differentiating photoreceptors; loss of Nr2e3 leads to ectopic mitotic progenitor cells in the outer nuclear layer of the mature retina, prolonged proliferation, abnormal retinal lamination, and a wave of apoptosis. NR2E3 acts in late mitotic progenitors to repress the cone generation program. Immunohistochemistry, BrdU labeling for proliferation, TUNEL for apoptosis, immunofluorescence in Nr2e3(rd7/rd7) mice Visual neuroscience Medium 17266784
2007 Genetic ablation of cone photoreceptors (using a cone-specific diphtheria toxin A chain transgene) eliminates retinal folds in the rd7/rd7 retina, establishing that the excess cones (due to Nr2e3 loss) are the critical cellular cause of retinal folding in this model. Genetic epistasis using cone-specific DTA transgene crossed onto rd7/rd7 background; quantification of retinal folds, photoreceptors, cones by histology Investigative ophthalmology & visual science Medium 17525215
2007 The G56R mutation in NR2E3 causes autosomal dominant retinitis pigmentosa via a dominant negative mechanism. The G56R mutant protein retains interaction with CRX (unlike other DBD mutants) but with abolished DNA binding, acting as a repressor in trans by titrating CRX. Mutation identification in adRP families, functional analysis with BRET assays and transient transfection reporter assays American journal of human genetics Medium 17564971
2008 NRL binds to a sequence element in the Nr2e3 promoter and enhances its activity synergistically with CRX, establishing NRL as a direct transcriptional activator of Nr2e3. Using transgenic mice, NRL was shown to only partially suppress cone development in the absence of Nr2e3, placing Nr2e3 downstream of NRL in the rod specification hierarchy. Promoter activity assays, ChIP (NRL binding to Nr2e3 promoter), transgenic mouse epistasis (NRL expression in Nrl-/- and Nr2e3-/- backgrounds), gene profiling Brain research High 18294621
2009 NR2E3 DBD mutations impair homodimerization and CRX interaction as shown by BRET2 assays in HEK293T cells. The adRP-linked G56R mutant retains CRX interaction but is more effective at abolishing rhodopsin transactivation and enhancing cone opsin repression, while other DBD mutants lose CRX interaction. This indicates distinct disease mechanisms for adRP (dominant negative via CRX titration) versus ESCS (loss of DNA binding/dimerization). Bioluminescence Resonance Energy Transfer (BRET2) protein interaction assays in HEK293T cells, transactivation assays PloS one Medium 19823680
2009 NR2E3 directly targets multiple genes in the retina as demonstrated by ChIP, including transcription factors (Ror1, Rorg, Nr1d1, Nr2c1) during development and phototransduction genes (Gnb1, blue opsin, Gnat2, Gnb3) in the mature retina. NR2E3 loss results in diminished GNB1 protein in adult Nr2e3(rd7/rd7) retinas. Chromatin immunoprecipitation (ChIP), quantitative RT-PCR, subtractive hybridization, immunohistochemistry in Nr2e3(rd7/rd7) mice Experimental eye research Medium 19379737
2009 Site-directed mutagenesis of 25 NR2E3 variants showed that 15 of 25 mutant proteins mislocalize partially to the cytoplasm. Eight of nine DBD mutations and 12 of 14 LBD mutations exhibit reduced DNA binding and reduced transcriptional activation of the rhodopsin promoter. These mutations also alter NR2E3 interaction with NRL and CRX. Site-directed mutagenesis, nuclear localization assay, gel-shift DNA binding assay, rhodopsin promoter reporter assay, co-immunoprecipitation in cultured mammalian cells Molecular vision High 19898638
2009 The G56R NR2E3 mutant has dominant negative activity as the molecular mechanism of adRP; impaired repression of cone-specific genes by corepressors atrophin-1 and atrophin-2 appeared to mediate a beneficial (milder phenotype) effect of the co-occurring R311Q variant. Functional analysis in transfection assays, interaction studies with atrophin-1/atrophin-2 Human mutation Medium 19006237
2011 NR1D1 (Rev-erbα) is co-expressed with NR2E3 in the outer nuclear layer of developing and adult mouse retina. Knockdown of Nr1d1 causes retinal spotting and reduced retinal function by ERG. Several genes are co-targeted by NR2E3 and NR1D1 (including Nr2c1, Recoverin, Rgr, Rarres2, Pde8a, Nupr1). Both nuclear receptors cycle in a similar circadian manner. Knockdown of Nr1d1 in developing retina, co-expression analysis, ERG, gene expression profiling, co-targeting analysis PloS one Medium 21408158
2011 NR2E3 (PNR) forms complexes with p53 and the acetyltransferase p300, stimulates p53 acetylation, increases p53 protein stability and transcriptional activity, and induces apoptosis in several cell types. This was identified in a high-throughput genetic screen and confirmed mechanistically. High-throughput genetic screen, co-immunoprecipitation (NR2E3-p53 and NR2E3-p300 complexes), p53 acetylation assays, p53-responsive promoter assays, apoptosis assays in HeLa cells Molecular and cellular biology Medium 22025681
2011 NR2E3 regulates ESR1 (estrogen receptor α) transcription via direct binding to the ESR1 promoter with concomitant recruitment of PIAS3 in breast cancer cells. This was established by ChIP and demonstrated to be essential for physiological ESR1 activity in ER-positive breast cancer cells. Systems-level gene expression reanalysis, ChIP (NR2E3 binding to ESR1 promoter with PIAS3 co-recruitment), functional knockdown assays in breast cancer cells EMBO molecular medicine Medium 22174013
2011 Early-born post-mitotic photoreceptor precursors in the rd7 retina express cone-specific genes (not late-born proliferating cones), demonstrating that excess S-cones in rd7 arise from early-born photoreceptor precursors adopting a default cone fate rather than cone proliferation. Nr2e3 expression under Nrl promoter completely rescues the rd7 phenotype. GFP tagging of newborn rods, BrdU birthdating, transgenic mouse studies in rd7 background (Crx-Nr2e3, Nrl-Nr2e3 transgenes), gene expression profiling Human molecular genetics High 21813656
2013 The crystal structure of the apo NR2E3 ligand binding domain (LBD) at 2.8 Å resolution shows a dimeric auto-repressed conformation in which the putative ligand binding pocket is filled with bulky hydrophobic residues and the AF2 helix occupies the canonical cofactor binding site. Mutations disrupting either the AF2/cofactor-binding site interface or the dimer interface compromised repressor activity. X-ray crystallography (2.8 Å), structure-guided mutagenesis, transcriptional repressor activity assays in cells PloS one High 24069298
2014 In vivo delivery of Nr1d1 (Rev-Erbα) to rd7 mice (which lack Nr2e3) rescued retinal degeneration clinically, histologically, functionally, and molecularly. The mechanism of rescue was through re-regulation of key genes within the Nr2e3-directed transcriptional network, establishing Nr1d1 as a functional modifier of Nr2e3-associated retinal degeneration. In vivo subretinal gene delivery of Nr1d1 in rd7 mice, ERG, histology, immunohistochemistry, molecular gene expression analysis PloS one Medium 24498227
2015 BRET2 assays of NR2E3 LBD variants show that homodimerization is abolished by p.L263P, p.L336P, p.L353V, p.R385P, and p.M407K but not by p.A256V, p.R039G, p.R311Q, or p.R334G. LBD variants do not affect CRX interaction but do affect interaction with NRL and NR1D1 (Rev-erbα). NR2E3 does not heterodimerize with TLX/NR2E1 or RXRα/NR2C1. Bioluminescence Resonance Energy Transfer (BRET2) assays, homology modeling Human mutation Medium 25703721
2017 PNR/NR2E3 LBD forms heterodimers with PPARγ/NR1C3 and TRβ/NR1A2, but not PPARα or PPARδ. PPARγ and PNR are co-expressed in human retinal tissue and can be co-immunoprecipitated as a native complex. Retinopathy-associated PNR LBD variants disrupt PNR/PPARγ complex formation. Wild-type PNR represses PPARγ-mediated transcription in reporter assays, whereas a PNR309G mutant does not. LBD interaction assays, co-immunoprecipitation from human retinal tissue, reporter gene repression assays Cell death & disease Medium 28300834
2019 NR2E3 knockout mice exhibit far more severe acetaminophen- or carbon tetrachloride-induced acute liver injuries due to impaired DINO (damage-induced lncRNA) induction and p53 activation. NR2E3 loss induces epigenetic repression of DINO with reduced chromatin accessibility. An intact NR2E3-DINO-p53 signaling axis is required for NAC-mediated recovery from APAP-induced hepatotoxicity. NR2E3 KO mouse models with APAP/CCl4 liver injury, DINO expression analysis, chromatin accessibility assay, NAC rescue experiment, in vitro KO validation FASEB journal Medium 30991008
2019 Nr2e3 knockout in zebrafish (CRISPR) prevents rod photoreceptor differentiation (rod-specific genes not expressed, outer segments fail to form) but does not increase UV-cone or S-cone numbers. After normal development, L-/M-cones selectively degenerate. Nr2e3 synergizes with Crx and Nrl to enhance rhodopsin gene expression in vitro; Nr2e3 does not affect cone opsin expression in this model. CRISPR knockout zebrafish, histology, immunofluorescence, in vitro co-transfection assays for rhodopsin expression Biochimica et biophysica acta. Molecular basis of disease Medium 30684641
2020 Nr2e3 administered via subretinal injection attenuated retinal degeneration in five distinct mouse models of retinitis pigmentosa, associated with increased photoreceptor cells, improved ERG, and molecular reset of key transcription factors and gene networks, establishing Nr2e3 as a broad-spectrum modifier gene for retinal homeostasis. Subretinal gene delivery in five RP mouse models, ERG, histology, molecular gene expression analysis Gene therapy Medium 32123325
2020 A new shorter Nr2e3 isoform (exons 1-7, lacking the C-terminal portion of the LBD including the H10 dimerization domain and AF2 repressor domain) was identified. Ablation of the H10 dimerization domain (Δ27 allele) causes ESCS-like phenotype; full deletion of exon 8 (ΔE8, producing only the short isoform) causes progressive RP-like retinal degeneration, establishing that the dimerization and AF2 domains are required for normal repressor function. CRISPR/Cas9-D10A nickase to generate two mouse alleles (Δ27 and ΔE8), ERG, histology, isoform characterization Neurobiology of disease Medium 33007388
2021 Germline Nr2e3 knockout generates hybrid rod photoreceptors expressing the full complement of rod genes plus a subset of cone genes. This knockout potently protects rods in three mechanistically diverse mouse models of retinal degeneration (light damage, Rho-/-, rd10) without adverse effects on rod gene expression, structure, or function, and prolongation of rod survival leads to lasting preservation of cone morphology and function. Germline Nr2e3 knockout crossed onto three RP mouse models; ERG, histology, rod/cone morphology and function analysis Proceedings of the National Academy of Sciences of the United States of America High 38442152
2022 Biliverdin, a conserved green pigment from heme catabolism, specifically binds to NR2E3's ligand-binding domain (isolated from retinal extracts) and induces NR2E3-dependent reporter gene expression. Inhibition of biliverdin synthesis decreases photoreceptor cell populations in zebrafish larvae, rescued by exogenous biliverdin, establishing biliverdin as an endogenous small molecule ligand for NR2E3. Ligand binding assay (biliverdin binding to NR2E3 LBD from retinal extracts), NR2E3-dependent reporter gene assay, zebrafish pharmacological inhibition of biliverdin synthesis with rescue Scientific reports Medium 35508617
2024 Single-cell RNA sequencing of NR2E3-null human retinal organoids derived from patient iPSCs showed that NR2E3 is required for proper expression of phototransduction genes in rods including rhodopsin (absent in NR2E3-null divergent rods) and for suppressing cone-specific phototransduction gene misexpression in rods. A developmental branch point unique to the disease state was identified. These findings were strikingly different from rodent Nr2e3 models. scRNA-seq of patient iPSC-derived retinal organoids (NR2E3 disease-causing variants, isogenic controls, unrelated controls), joint multimodal single-cell sequencing, rod developmental lineage reconstruction The Journal of clinical investigation High 38652563
2024 Loss of NR2E3 increases chromatin accessibility at WNT/β-catenin target gene promoters and facilitates formation of an active transcription complex involving Sp1, β-catenin, and p300 on these promoters, leading to upregulation of WNT pathway genes. NR2E3 KO mice exhibit accelerated liver tumor formation with enhanced WNT/β-catenin activation and inactivated p53, establishing NR2E3 as a tumor suppressor that maintains epigenetic homeostasis to suppress WNT/β-catenin signaling. NR2E3 KO mouse HCC models, chromatin accessibility assays, ChIP for Sp1/β-catenin/p300 complex on target gene promoters, gene expression analysis Advanced science Medium 38790135
2025 Acute Nr2e3 knockout prevents photoreceptor degeneration and preserves visual function in Pde6b mutant mice. Upregulation of Pde6c (cone-specific paralog of Pde6b) in Nr2e3-knockout rods is required for this protective effect, suggesting a gene-replacement mechanism. However, acute Nr2e3 knockout fails to prevent degeneration caused by Rhodopsin loss- or gain-of-function mutations, indicating the protection is mechanism-specific and not universally applicable. Acute Nr2e3 knockout in Pde6b, Rho-/-, and Rho gain-of-function mouse models; ERG, histology, Pde6c conditional deletion epistasis experiment Proceedings of the National Academy of Sciences of the United States of America High 40397675
2025 NR2E3 (full-length isoform, not short isoform) activates wild-type p53 and can rescue certain p53 mutations in cancer cell lines. A cancer-associated NR2E3-R97H mutation fails to activate p53 and impedes NR2E3WT-mediated p53 acetylation. Small molecule agonist 11a of NR2E3 penetrates tumor mass and increases p53 activation. Overexpression of full-length vs. short NR2E3 isoforms in cancer cell lines, p53 acetylation assay, 11a agonist treatment in patient tumor tissue, drug combination screens Cell death & disease Medium 39809731
2025 NR2E3 directly binds to the RXRG promoter; the R296Q mutation (equivalent to human R311Q) significantly impairs this binding, resulting in decreased RXRG mRNA and protein expression. This establishes a novel NR2E3-RXRG signaling pathway for modulating photoreceptor development and retinal maintenance. CRISPR/Cas9 knock-in mouse (NR2E3R296Q), ChIP demonstrating direct NR2E3 binding to RXRG promoter, RXRG expression analysis, histology, immunofluorescence FASEB journal Medium 40317544
2007 Misexpression of human Nr2e3 or Xenopus Nrl in Xenopus eye primordia directed photoreceptor precursors to become rods at the expense of cones. Overexpression of Nrl and Nr2e3 together was more effective than either alone in directing precursors to the rod fate. Misexpression (microinjection) in Xenopus eye primordia, quantification of rod vs. cone photoreceptors Developmental dynamics Medium 17377979
2008 Prph2 is a direct transcriptional target of NR2E3 as demonstrated by ChIP. Prph2 mRNA and protein levels are reduced in Nr2e3(rd7/rd7) retinas, and the Prph2 nmf193 mutant shows similar photoreceptor degeneration to Nr2e3(rd7/rd7), suggesting that reduced Prph2 expression contributes to Nr2e3(rd7/rd7) degenerative pathology. ChIP (NR2E3 binding to Prph2), Prph2 mRNA/protein analysis in rd7 retinas, comparison of Prph2 and Nr2e3 mutant histopathology Mammalian genome Medium 18763016
2024 NR2E3 overexpression inhibits inflammation and apoptosis in diabetic retinopathy by facilitating AHR protein expression while suppressing IL-17A/ACT1, acting through the AHR/IL-17A signaling pathway. AHR inhibitor reversal confirmed pathway specificity both in vivo and in vitro. NR2E3 overexpression in STZ-induced DR mouse model and HG-induced ARPE-19 cells, TUNEL apoptosis assay, western blot for AHR/IL-17A/ACT1, AHR inhibitor rescue experiment Naunyn-Schmiedeberg's archives of pharmacology Low 38884674
2024 Nr2e3 enhances Tet2 transcriptional activity by binding to the Tet2 promoter. Nr2e3 knockdown in mouse hippocampus leads to reduced Tet2 expression, depression-like behaviors, decreased hydroxymethylation of synaptic genes, and downregulation of synaptic proteins PSD95 and NMDAR1. Nr2e3 knockdown in mouse hippocampus, ChIP/promoter binding assay, behavioral assays, gene expression and protein analysis Advanced science Low 38881534

Source papers

Stage 0 corpus · 100 papers · ranked by NIH iCite citations
Year Title Journal Citations PMID
2000 Mutation of a nuclear receptor gene, NR2E3, causes enhanced S cone syndrome, a disorder of retinal cell fate. Nature genetics 400 10655056
2005 The rod photoreceptor-specific nuclear receptor Nr2e3 represses transcription of multiple cone-specific genes. The Journal of neuroscience : the official journal of the Society for Neuroscience 239 15634773
2005 The photoreceptor-specific nuclear receptor Nr2e3 interacts with Crx and exerts opposing effects on the transcription of rod versus cone genes. Human molecular genetics 228 15689355
2004 Photoreceptor-specific nuclear receptor NR2E3 functions as a transcriptional activator in rod photoreceptors. Human molecular genetics 222 15190009
2002 The nuclear receptor NR2E3 plays a role in human retinal photoreceptor differentiation and degeneration. Proceedings of the National Academy of Sciences of the United States of America 201 11773633
2000 A deletion in a photoreceptor-specific nuclear receptor mRNA causes retinal degeneration in the rd7 mouse. Proceedings of the National Academy of Sciences of the United States of America 184 10805811
2001 Excess cone cell proliferation due to lack of a functional NR2E3 causes retinal dysplasia and degeneration in rd7/rd7 mice. Human molecular genetics 166 11487564
2003 Shared mutations in NR2E3 in enhanced S-cone syndrome, Goldmann-Favre syndrome, and many cases of clumped pigmentary retinal degeneration. Archives of ophthalmology (Chicago, Ill. : 1960) 144 12963616
2008 Rod differentiation factor NRL activates the expression of nuclear receptor NR2E3 to suppress the development of cone photoreceptors. Brain research 108 18294621
2007 Recurrent mutation in the first zinc finger of the orphan nuclear receptor NR2E3 causes autosomal dominant retinitis pigmentosa. American journal of human genetics 101 17564971
2006 In vivo function of the orphan nuclear receptor NR2E3 in establishing photoreceptor identity during mammalian retinal development. Human molecular genetics 101 16868010
2004 Nuclear receptor NR2E3 gene mutations distort human retinal laminar architecture and cause an unusual degeneration. Human molecular genetics 93 15229190
2004 Mutation analysis of NR2E3 and NRL genes in Enhanced S Cone Syndrome. Human mutation 91 15459973
2009 NR2E3 mutations in enhanced S-cone sensitivity syndrome (ESCS), Goldmann-Favre syndrome (GFS), clumped pigmentary retinal degeneration (CPRD), and retinitis pigmentosa (RP). Human mutation 85 19718767
2009 Nr2e3-directed transcriptional regulation of genes involved in photoreceptor development and cell-type specific phototransduction. Experimental eye research 74 19379737
2006 The transcription factor Nr2e3 functions in retinal progenitors to suppress cone cell generation. Visual neuroscience 72 17266784
2004 Expression of photoreceptor-specific nuclear receptor NR2E3 in rod photoreceptors of fetal human retina. Investigative ophthalmology & visual science 71 15277507
2009 Mutations in NR2E3 can cause dominant or recessive retinal degenerations in the same family. Human mutation 62 19006237
2011 Nuclear receptor Rev-erb alpha (Nr1d1) functions in concert with Nr2e3 to regulate transcriptional networks in the retina. PloS one 61 21408158
2012 Characterization of pupil responses to blue and red light stimuli in autosomal dominant retinitis pigmentosa due to NR2E3 mutation. Investigative ophthalmology & visual science 60 22807301
2009 Cellular origin of fundus autofluorescence in patients and mice with a defective NR2E3 gene. The British journal of ophthalmology 60 19429590
2007 The Gly56Arg mutation in NR2E3 accounts for 1-2% of autosomal dominant retinitis pigmentosa. Molecular vision 53 17982421
2011 Excess cones in the retinal degeneration rd7 mouse, caused by the loss of function of orphan nuclear receptor Nr2e3, originate from early-born photoreceptor precursors. Human molecular genetics 50 21813656
2020 Nr2e3 is a genetic modifier that rescues retinal degeneration and promotes homeostasis in multiple models of retinitis pigmentosa. Gene therapy 48 32123325
2011 Reconstruction of nuclear receptor network reveals that NR2E3 is a novel upstream regulator of ESR1 in breast cancer. EMBO molecular medicine 42 22174013
2005 Novel NR2E3 mutations (R104Q, R334G) associated with a mild form of enhanced S-cone syndrome demonstrate compound heterozygosity. Ophthalmology 42 16225923
2014 Modifier genes as therapeutics: the nuclear hormone receptor Rev Erb alpha (Nr1d1) rescues Nr2e3 associated retinal disease. PloS one 39 24498227
2009 Phenotypic features of patients with NR2E3 mutations. Archives of ophthalmology (Chicago, Ill. : 1960) 39 19139342
2009 Mutations in the DNA-binding domain of NR2E3 affect in vivo dimerization and interaction with CRX. PloS one 38 19823680
2013 The crystal structure of the orphan nuclear receptor NR2E3/PNR ligand binding domain reveals a dimeric auto-repressed conformation. PloS one 37 24069298
2008 Dual role of Nr2e3 in photoreceptor development and maintenance. Experimental eye research 36 18547563
2019 Correction of NR2E3 Associated Enhanced S-cone Syndrome Patient-specific iPSCs using CRISPR-Cas9. Genes 35 30959774
2008 Analysis of the involvement of the NR2E3 gene in autosomal recessive retinal dystrophies. Clinical genetics 35 18294254
2012 Mutations in TULP1, NR2E3, and MFRP genes in Indian families with autosomal recessive retinitis pigmentosa. Molecular vision 34 22605927
2007 Atypical mild enhanced S-cone syndrome with novel compound heterozygosity of the NR2E3 gene. American journal of ophthalmology 34 17601449
2008 Mapping of genetic modifiers of Nr2e3 rd7/rd7 that suppress retinal degeneration and restore blue cone cells to normal quantity. Mammalian genome : official journal of the International Mammalian Genome Society 33 18286335
2021 Allele-Specific Knockout by CRISPR/Cas to Treat Autosomal Dominant Retinitis Pigmentosa Caused by the G56R Mutation in NR2E3. International journal of molecular sciences 32 33807610
2007 Genetic ablation of cone photoreceptors eliminates retinal folds in the retinal degeneration 7 (rd7) mouse. Investigative ophthalmology & visual science 32 17525215
2009 The spectrum of retinal diseases caused by NR2E3 mutations in Israeli and Palestinian patients. Archives of ophthalmology (Chicago, Ill. : 1960) 30 19273793
2009 A comprehensive analysis of sequence variants and putative disease-causing mutations in photoreceptor-specific nuclear receptor NR2E3. Molecular vision 30 19898638
2006 The zebrafish orphan nuclear receptor genes nr2e1 and nr2e3 are expressed in developing eye and forebrain. Gene expression patterns : GEP 30 17127102
2003 Cone deactivation kinetics and GRK1/GRK7 expression in enhanced S cone syndrome caused by mutations in NR2E3. Investigative ophthalmology & visual science 30 12601058
2012 Double concentric autofluorescence ring in NR2E3-p.G56R-linked autosomal dominant retinitis pigmentosa. Investigative ophthalmology & visual science 27 22661467
2006 Identification of potent agonists of photoreceptor-specific nuclear receptor (NR2E3) and preparation of a radioligand. Bioorganic & medicinal chemistry letters 27 16879962
2019 Knockout of Nr2e3 prevents rod photoreceptor differentiation and leads to selective L-/M-cone photoreceptor degeneration in zebrafish. Biochimica et biophysica acta. Molecular basis of disease 26 30684641
2013 Disruption of the human cone photoreceptor mosaic from a defect in NR2E3 transcription factor function in young adults. Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie 25 23604511
2018 Cone Vision Changes in the Enhanced S-Cone Syndrome Caused by NR2E3 Gene Mutations. Investigative ophthalmology & visual science 24 29971438
2005 Physiological function of S-cone system is not enhanced in rd7 mice. Experimental eye research 23 16005871
2004 Enhanced S-cone syndrome in a Japanese family with a nonsense NR2E3 mutation (Q350X). Acta ophthalmologica Scandinavica 23 15453866
2016 Dominant Retinitis Pigmentosa, p.Gly56Arg Mutation in NR2E3: Phenotype in a Large Cohort of 24 Cases. PloS one 22 26910043
2019 Antisense Oligonucleotide-Based Downregulation of the G56R Pathogenic Variant Causing NR2E3-Associated Autosomal Dominant Retinitis Pigmentosa. Genes 20 31083481
2024 NR2E3 loss disrupts photoreceptor cell maturation and fate in human organoid models of retinal development. The Journal of clinical investigation 19 38652563
2007 Nr2e3 and Nrl can reprogram retinal precursors to the rod fate in Xenopus retina. Developmental dynamics : an official publication of the American Association of Anatomists 18 17377979
2019 NR2E3 is a key component in p53 activation by regulating a long noncoding RNA DINO in acute liver injuries. FASEB journal : official publication of the Federation of American Societies for Experimental Biology 17 30991008
2023 Nuclear Receptor Subfamily 2 Group E Member 3 (NR2E3): Role in Retinal Development and Disease. Genes 16 37510230
2010 Helicoid subretinal fibrosis associated with a novel recessive NR2E3 mutation p.S44X. Archives of ophthalmology (Chicago, Ill. : 1960) 16 20212206
2009 Association of NR2E3 but not NRL mutations with retinitis pigmentosa in the Chinese population. Investigative ophthalmology & visual science 16 19933183
2016 Inhibition of Bacillus cereus Growth and Toxin Production by Bacillus amyloliquefaciens RD7-7 in Fermented Soybean Products. Journal of microbiology and biotechnology 15 26528531
2016 Two-color pupillometry in enhanced S-cone syndrome caused by NR2E3 mutations. Documenta ophthalmologica. Advances in ophthalmology 15 27033713
2015 Differential dimerization of variants linked to enhanced S-cone sensitivity syndrome (ESCS) located in the NR2E3 ligand-binding domain. Human mutation 15 25703721
2011 Orphan nuclear receptor PNR/NR2E3 stimulates p53 functions by enhancing p53 acetylation. Molecular and cellular biology 14 22025681
2019 Short-Wavelength Sensitive Cone (S-cone) Testing as an Outcome Measure for NR2E3 Clinical Treatment Trials. International journal of molecular sciences 13 31117170
2012 Peculiar fundus abnormalities and pathognomonic electrophysiological findings in a 14-month-old boy with NR2E3 mutations. Ophthalmic genetics 13 23039133
2012 In pursuit of synthetic modulators for the orphan retina-specific nuclear receptor NR2E3. Journal of ocular pharmacology and therapeutics : the official journal of the Association for Ocular Pharmacology and Therapeutics 13 23098562
2008 A novel mutation in Prph2, a gene regulated by Nr2e3, causes retinal degeneration and outer-segment defects similar to Nr2e3 ( rd7/rd7 ) retinas. Mammalian genome : official journal of the International Mammalian Genome Society 13 18763016
2015 Deregulation of NR2E3, an orphan nuclear receptor, by benzo(a)pyrene-induced oxidative stress is associated with histone modification status change of the estrogen receptor gene promoter. Toxicology letters 12 26149760
2021 Interspecies Correlations between Human and Mouse NR2E3-Associated Recessive Disease. Journal of clinical medicine 11 33513943
2020 Novel Pathogenic Sequence Variants in NR2E3 and Clinical Findings in Three Patients. Genes 11 33138239
2014 A novel mutation in the NR2E3 gene associated with Goldmann-Favre syndrome and vasoproliferative tumor of the retina. Molecular vision 11 24891813
2020 Nr2e3 functional domain ablation by CRISPR-Cas9D10A identifies a new isoform and generates retinitis pigmentosa and enhanced S-cone syndrome models. Neurobiology of disease 10 33007388
2024 Preclinical dose response study shows NR2E3 can attenuate retinal degeneration in the retinitis pigmentosa mouse model RhoP23H+/. Gene therapy 9 38273095
2017 Heterodimers of photoreceptor-specific nuclear receptor (PNR/NR2E3) and peroxisome proliferator-activated receptor-γ (PPARγ) are disrupted by retinal disease-associated mutations. Cell death & disease 9 28300834
2016 New truncation mutation of the NR2E3 gene in a Japanese patient with enhanced S-cone syndrome. Japanese journal of ophthalmology 9 27522502
2011 Developmental or degenerative--NR2E3 gene mutations in two patients with enhanced S cone syndrome. Molecular vision 9 21364904
2010 A novel mutation (Cys83Tyr) in the second zinc finger of NR2E3 in enhanced S-cone syndrome. Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie 9 20725840
2024 The Loss of an Orphan Nuclear Receptor NR2E3 Augments Wnt/β-catenin Signaling via Epigenetic Dysregulation that Enhances Sp1-β catenin-p300 Interactions in Hepatocellular Carcinoma. Advanced science (Weinheim, Baden-Wurttemberg, Germany) 8 38790135
2024 Specific photoreceptor cell fate pathways are differentially altered in NR2E3-associated diseases. Neurobiology of disease 7 38485095
2022 Structural and functional characterization of a hypothetical protein in the RD7 region in clinical isolates of Mycobacterium tuberculosis - an in silico approach to candidate vaccines. Journal, genetic engineering & biotechnology 7 35394551
2021 In vivo analysis of onset and progression of retinal degeneration in the Nr2e3rd7/rd7 mouse model of enhanced S-cone sensitivity syndrome. Scientific reports 7 34561487
2025 Orphan nuclear receptor NR2E3 is a new molecular vulnerability in solid tumors by activating p53. Cell death & disease 6 39809731
2022 Biliverdin regulates NR2E3 and zebrafish retinal photoreceptor development. Scientific reports 6 35508617
2017 Generation of an induced pluripotent stem cell (iPSC) line from a patient with autosomal dominant retinitis pigmentosa due to a mutation in the NR2E3 gene. Stem cell research 6 29034877
2008 Expression and functional analysis of Nr2e3, a photoreceptor-specific nuclear receptor, suggest common mechanisms in retinal development between avians and mammals. Development genes and evolution 6 18592265
2007 The loss of transcriptional inhibition by the photoreceptor-cell specific nuclear receptor (NR2E3) is not a necessary cause of enhanced S-cone syndrome. Molecular vision 6 17438525
2007 The Xenopus ortholog of the nuclear hormone receptor Nr2e3 is primarily expressed in developing photoreceptors. The International journal of developmental biology 6 17486544
2024 Germline knockout of Nr2e3 protects photoreceptors in three distinct mouse models of retinal degeneration. Proceedings of the National Academy of Sciences of the United States of America 5 38442152
2024 Targeting Nr2e3 to Modulate Tet2 Expression: Therapeutic Potential for Depression Treatment. Advanced science (Weinheim, Baden-Wurttemberg, Germany) 5 38881534
2023 Clinical and Genetic Features of NR2E3-Associated Retinopathy: A Report of Eight Families with a Longitudinal Study and Literature Review. Genes 5 37628579
2018 Electrophysiological verification of enhanced S-cone syndrome caused by a novel c.755T>C NR2E3 missense variant. Ophthalmic genetics 5 30466340
2024 NR2E3 inhibits the inflammation and apoptosis in diabetic retinopathy by regulating the AHR/IL-17A signaling pathway. Naunyn-Schmiedeberg's archives of pharmacology 4 38884674
2024 Low expression of NR1D1 and NR2E3 is associated with advanced features of retinoblastoma. International ophthalmology 3 38480634
2024 Evaluating therapeutic potential of NR2E3 doses in the rd7 mouse model of retinal degeneration. Scientific reports 2 39019967
2023 Regulation of the stem‑like properties of estrogen receptor‑positive breast cancer cells through NR2E3/NR2C2 signaling. Experimental and therapeutic medicine 2 37664670
2013 Overexpression of retinal degeneration slow (RDS) protein adversely affects rods in the rd7 model of enhanced S-cone syndrome. PloS one 2 23650562
2026 Inner retinal cavitations in three cases of NR2E3-associated retinopathy. Documenta ophthalmologica. Advances in ophthalmology 1 42135558
2025 Mechanisms of photoreceptor protection upon targeting the Nrl-Nr2e3 pathway. Proceedings of the National Academy of Sciences of the United States of America 1 40397675
2024 Exploring the Molecular Interaction Between NR2E3 and NR1D1 in Retinitis Pigmentosa: A Docking and Molecular Dynamics Study. Journal of clinical laboratory analysis 1 39555996
2020 Data on the generation of two Nr2e3 mouse models by CRISPR / Cas9D10A nickase. Data in brief 1 33163596
2008 [Rd7 genotyping of M. tuberculosis strains isolated from patients with lung tuberculosis in different areas of Kazakhstan]. Molekuliarnaia genetika, mikrobiologiia i virusologiia 1 18494111
2025 Mouse NR2E3R296Q Mutation Disrupts Photoreceptor Developmental Paradigm and Leads to Early-Onset Progressive Retinal Degeneration by Suppressing RXRG Signaling. FASEB journal : official publication of the Federation of American Societies for Experimental Biology 0 40317544

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