Affinage

TPR

Nucleoprotein TPR · UniProt P12270

Length
2363 aa
Mass
267.3 kDa
Annotated
2026-06-10
100 papers in source corpus 31 papers cited in narrative 30 extracted findings
Cross-family judge vs UniProt: Affinage preferred faithfulness: 7/7 claims corpus-supported (100%)

Mechanistic narrative

Synthesis pass · prose summary of the discoveries below

TPR is a large coiled-coil nucleoporin that constitutes the intranuclear filaments anchored to the nucleoplasmic face of the nuclear pore complex (NPC), where it serves as a multifunctional scaffold of the nuclear basket (PMID:9024684, PMID:7798308). It is recruited to the NPC through N-terminal heptad-repeat coiled-coil segments while its acidic C-terminal domain carries the nuclear localization signal that directs its own importin alpha/beta-mediated import (PMID:9864356, PMID:9828100, PMID:19835572). Anchored at the basket, TPR organizes nucleocytoplasmic transport: it is required for nuclear export of leucine-rich NES-bearing proteins (PMID:11839768) and operates as an integral component of the TREX-2/NXF1 mRNA export pathway, where its loss disrupts association of TREX-2 subunits (GANP, PCID2, ENY2) with NPCs and traps short, intron-poor transcripts in nuclear speckles downstream of NXF1 recruitment (PMID:32917881, PMID:33091126); TPR conversely restrains export of intron-retaining transcripts trafficking through the NXF1/NXT1 pathway, an activity dependent on Nup153-mediated NPC docking (PMID:21613532, PMID:22253824). TPR also governs mitotic fidelity through the spindle assembly checkpoint: it directly binds and stabilizes Mad1 and Mad2, maintaining their NPC and kinetochore localization and the Mad1-cMad2 pool needed for robust APC/Cdc20 inhibition (PMID:18981471, PMID:24344181), a function gated by CDK1 phosphorylation of Ser2059 that is required for the TPR–Mad1 interaction (PMID:24938596). Beyond transport and checkpoint roles, TPR acts as both substrate and scaffold for ERK2, binding it through a DEF docking motif and promoting ERK2 nuclear translocation (PMID:18794356), and scaffolds an ERK-dependent phosphorylation of Nup153 that negatively regulates NPC biogenesis (PMID:30228202). TPR additionally associates with lamin B1 to organize the nuclear lamina and NPC distribution (PMID:30762072) and protects genome stability by preventing transcription-associated replication stress and DNA-RNA hybrid accumulation (PMID:34168151). The N-terminal coiled-coil region of TPR is recurrently captured in oncogenic kinase fusions including TPR-MET, providing a dimerization domain that yields a constitutively active, autophosphorylating tyrosine kinase that signals through Grb2/Shc to transform cells (PMID:7798308, PMID:3277171, PMID:7838524, PMID:8662733).

Mechanistic history

Synthesis pass · year-by-year structured walk · 12 steps
  1. 1992 Medium

    Establishing the primary structure of TPR was the prerequisite for understanding both its scaffolding and its oncogenic-fusion roles.

    Evidence cDNA cloning and sequencing of the human gene with structural prediction

    PMID:1437155

    Open questions at the time
    • Sequence alone did not assign molecular function
    • Did not localize the protein
  2. 1988 High

    Characterizing the TPR-MET fusion product answered how a TPR rearrangement causes transformation, showing TPR contributes a constitutively activating module to a tyrosine kinase.

    Evidence Immunocomplex kinase assays and in vivo phosphorylation analysis of p65tpr-met

    PMID:3277171

    Open questions at the time
    • Did not identify which downstream effectors are required
    • Did not address normal TPR function
  3. 1995 High

    Mapping the signaling requirements of TPR-MET defined which effector couplings drive transformation.

    Evidence Site-directed Tyr489 mutagenesis with fibroblast transformation and Co-IP of signaling proteins

    PMID:7838524 PMID:8662733

    Open questions at the time
    • Tested in fibroblast models only
    • Did not address subcellular localization requirements
  4. 1997 High

    Resolving TPR's localization to the nucleoplasmic side of the NPC established it as a nuclear basket component rather than a cytoplasmic filament protein, redirecting functional hypotheses.

    Evidence Reciprocal immunoelectron microscopy with multiple epitope antibodies across vertebrate species

    PMID:7798308 PMID:9024684

    Open questions at the time
    • Did not define transport function
    • Mechanism of basket assembly not addressed
  5. 1998 Medium

    Domain dissection separated TPR's NPC-anchoring and self-import determinants and provided the first functional link to mRNA export.

    Evidence Deletion/chimeric constructs with poly(A)+ RNA FISH and importin Co-IP in mammalian cells and Xenopus extracts

    PMID:9531546 PMID:9828100 PMID:9864356

    Open questions at the time
    • Overexpression readout may not reflect endogenous mechanism
    • Export pathway specificity not resolved
  6. 2002 High

    Functional perturbation distinguished TPR's role in protein/RNA export from import, refining its transport function.

    Evidence Antibody microinjection in mitotic and interphase cells with NES-export versus NLS-import readouts and poly(A)+ FISH

    PMID:11839768 PMID:11952838

    Open questions at the time
    • Did not identify the molecular export machinery TPR engages
    • Speckle-accumulation mechanism unresolved
  7. 2008 High

    Discovery of direct Mad1/Mad2 binding and ERK2 scaffolding assigned TPR mitotic-checkpoint and MAPK-signaling functions beyond transport.

    Evidence Affinity-purification MS, direct binding assays, siRNA with checkpoint readouts, and in vitro ERK2 kinase/translocation assays

    PMID:18794356 PMID:18981471

    Open questions at the time
    • How TPR coordinates checkpoint and export functions unclear
    • Structural basis of Mad1 binding not defined
  8. 2013 High

    Demonstrating that TPR stabilizes Mad1/Mad2 proteostasis clarified the mechanism by which it sustains SAC robustness.

    Evidence Co-IP, protein half-life measurements, siRNA with GFP-Mad2 rescue and kinetochore imaging

    PMID:20133940 PMID:24344181

    Open questions at the time
    • Role of SENP1/SENP2 in this proteostasis only correlative
    • Dynein-dependent contribution from Medium-confidence study
  9. 2014 High

    Identifying CDK1 phosphorylation of Ser2059 provided a cell-cycle switch controlling the TPR-Mad1 interaction.

    Evidence MS phosphosite mapping, in vitro CDK1/PKA kinase assays, phospho-mutant Co-IP and imaging

    PMID:24938596 PMID:8726355

    Open questions at the time
    • Functional role of PKA S2094 site unresolved
    • Phosphatase counteracting these sites not identified
  10. 2018 High

    Acute degron depletion revealed TPR as a negative regulator of NPC number acting through ERK-mediated Nup153 phosphorylation.

    Evidence Auxin-inducible degron depletion, NPC counting, kinase inhibition and phospho/Co-IP assays

    PMID:30228202

    Open questions at the time
    • How ERK is recruited to the basket scaffold not fully defined
    • Connection to TPR's transport roles unclear
  11. 2020 High

    Acute depletion plus transcriptomics placed TPR as an integral TREX-2/NXF1 export factor required for short, intron-poor transcripts to exit nuclear speckles.

    Evidence AID depletion, nuclear/cytoplasmic RNA-seq, TREX-2 NPC-association assays and speckle co-localization

    PMID:32917881 PMID:33091126

    Open questions at the time
    • Molecular step linking speckle release to pore docking unresolved
    • How transcript length is sensed unknown
  12. 2021 High

    Linking TPR loss to replication stress and DNA-RNA hybrids connected its export/processing scaffolding to genome stability.

    Evidence DNA fiber assays, EM of replication intermediates, proteomic interaction screen (MATR3, SUGP2, GANP) and functional validation

    PMID:34168151

    Open questions at the time
    • Causal chain from export defect to fork stress not fully dissected
    • Direct versus indirect interactions with MATR3/SUGP2 unclear

Open questions

Synthesis pass · forward-looking unresolved questions
  • How TPR's multiple functions — TREX-2 export, SAC proteostasis, ERK scaffolding, NPC homeostasis, and lamina organization — are partitioned or coordinated on a single basket scaffold remains unresolved.
  • No structural model of the assembled basket scaffold with bound partners
  • Mechanism integrating transport and checkpoint roles unknown
  • Relationship between full-length TPR functions and the N-terminal oncogenic fusions not bridged mechanistically

Mechanism profile

Synthesis pass · controlled-vocabulary classification · explore literature graph →
Molecular activity
GO:0060090 molecular adaptor activity 4 GO:0005198 structural molecule activity 3 GO:0140313 molecular sequestering activity 2
Localization
GO:0005634 nucleus 2 GO:0005635 nuclear envelope 2 GO:0005815 microtubule organizing center 1
Pathway
R-HSA-8953854 Metabolism of RNA 4 R-HSA-1640170 Cell Cycle 3 R-HSA-1643685 Disease 3 R-HSA-9609507 Protein localization 3 R-HSA-162582 Signal Transduction 1
Complex memberships
TPR/Mad1/Mad2 complexTREX-2nuclear pore complex (nuclear basket)

Evidence

Reading pass · 30 per-paper findings extracted from the source corpus
Year Finding Method Journal Conf PMIDs
1997 Tpr (p270) is a constitutive component of the intranuclear filaments attached to the nucleoplasmic annulus of the nuclear pore complex (NPC) in vertebrate cells, localized exclusively on the nucleoplasmic side, not the cytoplasmic surface. Immunoelectron microscopy with multiple antibodies against different Tpr epitopes in mammalian and amphibian cells The Journal of cell biology High 9024684
1994 Tpr is a large (~265 kDa) coiled-coil protein and a component of the nuclear pore complex; its amino-terminal region is the portion incorporated into oncogenic kinase fusions (TPR-MET, TPR-TRK, TPR-RAF). Tpr is assembled into NPCs later than O-glycosylated nucleoporins during post-mitotic NPC reassembly. Monoclonal antibody immunofluorescence and immunogold EM; in vitro translation; peptide sequencing from rat liver NEs The Journal of cell biology High 7798308
1998 Tpr (via its N-terminal coiled-coil domain) associates with the nuclear basket of the NPC; its acidic C-terminal domain contains a nuclear localization signal and can mediate nuclear import. Ectopic expression of full-length Tpr or NPC-associated domains causes accumulation of poly(A)+ RNA in the nucleus, implicating Tpr in mRNA export. Mammalian cell transfection with full-length and deletion mutant constructs; fluorescence microscopy; poly(A)+ RNA in situ hybridization The Journal of cell biology Medium 9864356
1998 Tpr forms stable subcomplexes with importin alpha and importin beta in Xenopus egg extracts (and in assembled nuclear pores), making it a major physiological binding site for importin beta. Unlike Nup153, Tpr binds importin beta/alpha heterodimers only when they are NOT carrying an NLS substrate, and the complex is disassembled by GMP-PNP. Immunoprecipitation from Xenopus egg extracts and isolated nuclei; solid-phase binding; immunofluorescence localization The Journal of cell biology High 9531546
2002 Tpr is concentrated within the nuclear basket of the NPC (not in long intranuclear filaments). Antibody-mediated depletion of Tpr from NPC (by injection into mitotic cells) did not affect nuclear import mediated by a basic NLS, but significantly retarded nuclear export mediated by a leucine-rich NES signal. Intra-nuclear injection of anti-Tpr antibodies in interphase cells similarly inhibited protein export but not import. Antibody microinjection into mitotic and interphase cells; GFP-Tpr live imaging; immunofluorescence; EM immunolocalization The Journal of cell biology High 11839768
2001 TPR directly binds Nup98 in vitro, and via Nup98 also associates with Nup96. TPR colocalizes with Nup98 in a characteristic intranuclear filamentous network extending from NPCs toward the nucleolus. In vitro translated protein binding assay; double immunofluorescence microscopy; overexpression of myc-tagged pyruvate kinase-6kDa fusion; double-immunoelectron microscopy Proceedings of the National Academy of Sciences of the United States of America Medium 11248057
2002 Tpr is required for normal intranuclear dynamics of RNA Pol II transcripts, including processing, intranuclear transport, and export of poly(A)+ RNA; depletion causes accumulation of poly(A)+ RNA in enlarged SC35-positive nuclear speckles, without affecting NLS-mediated import or NES-mediated export. Antibody microinjection into mammalian interphase cells; poly(A)+ RNA FISH; immunofluorescence Genes to cells Medium 11952838
2008 ERK2 directly phosphorylates Tpr and binds to a DEF (FXF) docking domain on Tpr. ERK2 phosphorylation and dimerization are both required for stable ERK2-Tpr binding, and phosphorylation of Tpr positively cooperates with the DEF domain to promote this binding (unlike most substrates). Ectopic expression or depletion of Tpr decreases movement of activated ERK2 from cytoplasm to nucleus, indicating Tpr functions as both substrate and scaffold for ERK2. In vitro kinase assays; mutagenesis of phosphorylation sites and DEF domain; co-immunoprecipitation; cell fractionation; ERK2 nuclear translocation assays Molecular and cellular biology High 18794356
2008 Tpr directly binds Mad1 and Mad2 at the NPC during interphase. Depletion of Tpr in HeLa cells disrupts NPC localization of Mad1 and Mad2 during interphase, decreases Mad1-bound Mad2 levels, and reduces Mad1 at kinetochores during prometaphase, resulting in failure to activate Mad2 and inhibit APC/Cdc20—implicating Tpr in spindle assembly checkpoint signaling. Mass spectrometry of affinity-purified Mad2-associated factors; direct binding assays; siRNA knockdown; immunofluorescence of kinetochore proteins Genes & development High 18981471
2010 Tpr associates with the molecular motors dynein and dynactin, and with spindle checkpoint proteins Mad1 and Mad2 during cell division. Tpr overexpression causes multinucleated cell formation; knockdown causes lagging chromosome phenotype and disrupts spindle checkpoint protein localization. Rescue and dominant-negative experiments confirm that Tpr orchestrates proper chromosome segregation through interaction with dynein light chain. Co-immunoprecipitation; RNAi knockdown; overexpression; rescue experiments; immunofluorescence The Journal of biological chemistry Medium 20133940
2011 Tpr regulates export of mRNAs with retained introns that traffic through the Nxf1/Nxt1 pathway. Modest knockdown of Tpr by RNAi significantly increases export and translation of mRNA containing a CTE (Constitutive Transport Element), but has no effect on CRM1/Rev-RRE-dependent export or fully spliced mRNA export. RNAi knockdown; reporter constructs with CTE vs. RRE elements; cytoplasmic/nuclear RNA quantification RNA Medium 21613532
2012 Localization of Tpr to the NPC (dependent on Nup153) is necessary for its function in regulating unspliced RNA export. Tpr knockdown dramatically enhances export of CTE-containing unspliced RNA, an effect independent of Sam68 and Tap/Nxf1 but dependent on Nup153 co-action. siRNA knockdown; Gag/Pol-CTE reporter assay; rescue with siRNA-resistant Tpr; fractionation PloS one Medium 22253824
2013 Tpr stabilizes Mad1 and Mad2 proteins (forms a Tpr/Mad1/Mad2 complex) during interphase and mitosis, and is required for normal SAC response by maintaining Mad1-cMad2 levels. Tpr is required for Mad2 (but not Mad1) kinetochore localization; SAC robustness depends on Mad2 levels at kinetochores. Mechanistically, Tpr may spatially regulate SAC proteostasis through SUMO-isopeptidases SENP1 and SENP2 at NPCs. Co-immunoprecipitation (Tpr with Mad1/Mad2); protein half-life measurements; siRNA depletion; GFP-Mad2 rescue; immunofluorescence The Journal of cell biology High 24344181
2014 Tpr is phosphorylated at S2059 by CDK1 during mitosis, causing distinct chromatin localization in telophase. Phosphorylation at S2094 by protein kinase A is hyperphosphorylated during mitosis. Abrogation of S2059 phosphorylation abolishes Tpr-Mad1 interaction and disrupts Mad1/Mad2 localization, causing cell cycle defects. Mass spectrometry identification of phosphosites; in vitro kinase assays with CDK1 and PKA; phospho-mutant analysis; Co-IP; immunofluorescence Journal of cell science High 24938596
2018 Depletion of Tpr (but not Nup153) dramatically increases the total NPC number in various cell types. This negative regulation operates through a phosphorylation cascade: ERK (MAPK) phosphorylates Nup153 (using Tpr as a scaffold), which is critical for early stages of NPC biogenesis. Auxin-inducible degron (AID) depletion; NPC counting; kinase inhibitor experiments; phosphorylation assays; Co-IP Genes & development High 30228202
2020 Acute TPR depletion causes rapid transcriptomic changes closely related to those from loss of NXF1 or GANP (TREX-2 subunit), distinct from NUP153 or NUP50 depletion. TPR depletion disrupts association of TREX-2 subunits (GANP, PCID2, ENY2) with NPCs, indicating TPR is an integral component of the TREX-2 mRNA export pathway. Auxin-induced degron (AID) system for acute depletion; RNA-seq; NPC association assays for TREX-2 subunits Nature communications High 32917881
2020 TPR is required for efficient nuclear export of mRNAs and lncRNAs from short, intron-poor genes. In TPR-depleted cells, mRNAs from short transcripts accumulate in nuclear speckles while remaining bound to Nxf1, suggesting TPR acts downstream of Nxf1 recruitment to allow mRNAs to leave nuclear speckles and dock with the nuclear pore. Nuclear/cytoplasmic RNA-seq in TPR-depleted cells; reporter constructs; co-localization with nuclear speckle markers; Nxf1 association assay Nucleic acids research Medium 33091126
2021 Tpr depletion generates transcription-dependent replication stress, DNA-RNA hybrids, DNA breaks, and genomic instability. Tpr interacts with RNA-processing proteins MATR3 and SUGP2, and with GANP (TREX-2 component). Tpr-deficient cells show slow and asymmetric replication forks, linking TPR to a network connecting replication forks with transcription, splicing, and mRNA export. DNA fiber assays; electron microscopy of replication intermediates; proteomic interaction screen; siRNA depletion of interactors; immunoprecipitation Nature communications High 34168151
2009 Recombinant Tpr binds strongly and specifically to importin alpha, importin beta, and a CRM1-containing trimeric export complex via distinct binding sites. Nuclear import of Tpr is dependent on cytosolic factors and energy, efficiently mediated by the importin alpha/beta import pathway. Tpr preferentially binds CRM1 in an export complex, consistent with a role in protein export. Solid-phase binding assays with recombinant proteins; in vitro nuclear import assays; competition binding experiments BMC cell biology Medium 19835572
2012 Tpr depletion impairs NES-dependent nuclear export of proteins and causes partial co-depletion of Nup153. Tpr depletion also affects levels and function of SUMO-protease SENP2, disrupting SUMOylation regulation at the nuclear pore. Tpr depletion triggers G0/G1 arrest and a p53-dependent senescent-like phenotype. RNAi (siRNA) knockdown; NES-export assay; SUMO conjugation analysis; cell cycle analysis PloS one Medium 21811608
2015 Tpr interacts with Aurora A kinase via its central domain but not with Aurora B. Tpr depletion reduces Aurora A expression levels, centrosomal localization, and phosphorylation. Tpr also sequesters excess Aurora A at centrosomes to safeguard spindle bipolarity. Aurora A inhibitor Alisertib disrupts centrosomal localization of Tpr and induces mitotic catastrophe. Co-immunoprecipitation; siRNA knockdown; overexpression; immunofluorescence; domain mapping Cell cycle Medium 25789545
2019 TPR associates with lamin B1 (but not lamin A/C). TPR depletion affects lamin B1 organization within the nuclear lamina (detected by STED microscopy) and alters NPC distribution within the nuclear envelope; this effect is reversed by simultaneous lamin A/C knockdown or lamin B1 overexpression. Co-immunoprecipitation; STED microscopy; siRNA knockdown; double knockdown epistasis Cellular and molecular life sciences Medium 30762072
1992 The human tpr gene encodes a large protein (2094 amino acids, designated tpr-L) with extensive coiled-coil regions and a highly acidic C-terminal domain. The amino-terminal sequences are those that appear in oncogenic kinase fusions. cDNA cloning and sequencing; structural prediction; tissue expression analysis Oncogene Medium 1437155
1998 Distinct molecular segments of Tpr confer different topogenetic properties: a short region in the C-terminal domain is essential and sufficient for nuclear import; the N-terminal coiled-coil domain, when imported into the nucleus, mediates association with the NPC via segments containing heptad repeat clusters. Transfection of deletion mutants and chimeric Tpr-pyruvate kinase constructs in mammalian cells; immunofluorescence localization Experimental cell research Medium 9828100
1988 The TPR-MET oncogene encodes p65tpr-met, a constitutively active protein-tyrosine kinase that is autophosphorylated in vitro on tyrosine residues. In vivo, p65tpr-met is phosphorylated on both serine and tyrosine residues. Immunocomplex kinase assay; in vitro autophosphorylation; in vivo 32P labeling; cell-surface iodination Proceedings of the National Academy of Sciences High 3277171
1995 A single tyrosine residue (Tyr489) in the C-terminus of Tpr-Met is essential for efficient cell transformation. Tyr489 is required for association with Grb2, phosphatidylinositol 3-kinase, phospholipase Cγ, and SHPTP2/Syp. Transformation of fibroblasts depends on downstream pathways of Shc and Grb2, while PI3K, PLCγ, and SHPTP2 pathways alone are insufficient. Site-directed mutagenesis (Tyr→Phe); transformation assays in Fr3T3 fibroblasts; co-immunoprecipitation of signaling proteins Oncogene / The Journal of biological chemistry High 7838524 8662733
1999 Loss of the juxtamembrane domain of Met is essential for Tpr-Met oncogenic transformation. Tpr-juxtaMet (containing juxtamembrane domain aa 962-1009) strongly inhibits transformation, proliferation, anchorage-independent growth, motility, and invasion without altering kinase activity. The juxtamembrane domain impairs association of Tpr-Met with cytoplasmic signal transducers and downstream signaling. Chimeric protein construction; cell transformation assays; in vitro kinase assay; co-immunoprecipitation Oncogene High 10435641
2007 Tpr-Met oncogenic activation is dependent on cytoplasmic localization and exclusion from the endocytic/lysosomal degradation pathway. Plasma membrane targeting of Tpr-Met allows Cbl-dependent ubiquitination and degradation, reducing transforming activity. Cytoplasmic Tpr-Met lacks the Cbl-binding site and escapes downregulation; ubiquitination of cytosolic Tpr-Met alone does not alter its transforming activity. Membrane-targeting constructs; Cbl co-expression; ubiquitination assays; transformation assays; protein stability measurements Oncogene Medium 17533376
2012 Tpr depletion caused reduction in nuclear pore number and reduction in inner nuclear filaments (by electron microscopy). Tpr depletion increased p53 nuclear accumulation and facilitated autophagy. Tpr controls HSP70 and HSF1 mRNA export, and p53 trafficking via CRM1/exportin. siRNA knockdown; electron microscopy; immunofluorescence; mRNA export assays; Western blotting Scientific reports Medium 23170199
1996 Tpr is a phosphoprotein of the nuclear pore complex; immunoprecipitation from 32P-labeled cells confirms in vivo phosphorylation. The protein has multiple leucine zipper motifs and numerous predicted phosphorylation sites. Immunoprecipitation from 32P-orthophosphate-labeled cells; monoclonal antibody characterization; cDNA library screening; immunofluorescence Journal of cellular biochemistry Medium 8726355

Source papers

Stage 0 corpus · 100 papers · ranked by NIH iCite citations
Year Title Journal Citations PMID
2003 TPR proteins: the versatile helix. Trends in biochemical sciences 914 14659697
1998 The structure of the tetratricopeptide repeats of protein phosphatase 5: implications for TPR-mediated protein-protein interactions. The EMBO journal 682 9482716
1991 The TPR snap helix: a novel protein repeat motif from mitosis to transcription. Trends in biochemical sciences 413 1882418
1999 Regulation of Hsp90 ATPase activity by tetratricopeptide repeat (TPR)-domain co-chaperones. The EMBO journal 358 9927435
1988 Characterization of the TPR-MET oncogene p65 and the MET protooncogene p140 protein-tyrosine kinases. Proceedings of the National Academy of Sciences of the United States of America 210 3277171
1997 Identification of protein p270/Tpr as a constitutive component of the nuclear pore complex-attached intranuclear filaments. The Journal of cell biology 199 9024684
2010 Versatile TPR domains accommodate different modes of target protein recognition and function. Cell stress & chaperones 194 21153002
2004 Molecular basis for TPR domain-mediated regulation of protein phosphatase 5. The EMBO journal 181 15577939
1991 The TPR-MET oncogenic rearrangement is present and expressed in human gastric carcinoma and precursor lesions. Proceedings of the National Academy of Sciences of the United States of America 181 2052572
2007 TPRpred: a tool for prediction of TPR-, PPR- and SEL1-like repeats from protein sequences. BMC bioinformatics 177 17199898
2003 TPR subunits of the anaphase-promoting complex mediate binding to the activator protein CDH1. Current biology : CB 172 12956947
1998 Major binding sites for the nuclear import receptor are the internal nucleoporin Nup153 and the adjacent nuclear filament protein Tpr. The Journal of cell biology 166 9531546
2018 Loss of function of a rice TPR-domain RNA-binding protein confers broad-spectrum disease resistance. Proceedings of the National Academy of Sciences of the United States of America 162 29432165
2005 Differential control of glucocorticoid receptor hormone-binding function by tetratricopeptide repeat (TPR) proteins and the immunosuppressive ligand FK506. Biochemistry 155 15697228
2003 Mutations in a gene encoding a novel SH3/TPR domain protein cause autosomal recessive Charcot-Marie-Tooth type 4C neuropathy. American journal of human genetics 154 14574644
2002 Tpr is localized within the nuclear basket of the pore complex and has a role in nuclear protein export. The Journal of cell biology 151 11839768
2011 IFN-induced TPR protein IFIT3 potentiates antiviral signaling by bridging MAVS and TBK1. Journal of immunology (Baltimore, Md. : 1950) 146 21813773
2007 From Tpr-Met to Met, tumorigenesis and tubes. Oncogene 144 17322912
2008 Tpr directly binds to Mad1 and Mad2 and is important for the Mad1-Mad2-mediated mitotic spindle checkpoint. Genes & development 129 18981471
2005 Regulation of p21(WAF1/CIP1) stability by WISp39, a Hsp90 binding TPR protein. Molecular cell 114 15664193
1996 Pathways downstream of Shc and Grb2 are required for cell transformation by the tpr-Met oncoprotein. The Journal of biological chemistry 110 8662733
2003 Cofactor Tpr2 combines two TPR domains and a J domain to regulate the Hsp70/Hsp90 chaperone system. The EMBO journal 107 12853476
1994 Tpr, a large coiled coil protein whose amino terminus is involved in activation of oncogenic kinases, is localized to the cytoplasmic surface of the nuclear pore complex. The Journal of cell biology 104 7798308
2020 Nucleoporin TPR is an integral component of the TREX-2 mRNA export pathway. Nature communications 100 32917881
2003 TPR-mediated interaction of RapC with ComA inhibits response regulator-DNA binding for competence development in Bacillus subtilis. Molecular microbiology 100 12950917
1997 A Drosophila Tpr protein homolog is localized both in the extrachromosomal channel network and to nuclear pore complexes. Journal of cell science 100 9152019
2015 OsBRI1 Activates BR Signaling by Preventing Binding between the TPR and Kinase Domains of OsBSK3 via Phosphorylation. Plant physiology 93 26697897
1998 Functional analysis of Tpr: identification of nuclear pore complex association and nuclear localization domains and a role in mRNA export. The Journal of cell biology 93 9864356
2007 Structure and stability of designed TPR protein superhelices: unusual crystal packing and implications for natural TPR proteins. Acta crystallographica. Section D, Biological crystallography 91 17582171
1996 Transgenic expression of tpr-met oncogene leads to development of mammary hyperplasia and tumors. The Journal of clinical investigation 91 8675700
2010 Role of molecular chaperones and TPR-domain proteins in the cytoplasmic transport of steroid receptors and their passage through the nuclear pore. Nucleus (Austin, Tex.) 86 21113270
1992 Cloning, expression, and sequencing of a protease gene (tpr) from Porphyromonas gingivalis W83 in Escherichia coli. Infection and immunity 85 1322368
2010 AlgK is a TPR-containing protein and the periplasmic component of a novel exopolysaccharide secretin. Structure (London, England : 1993) 81 20159471
2013 Fine analysis of genetic diversity of the tpr gene family among treponemal species, subspecies and strains. PLoS neglected tropical diseases 80 23696912
2010 Nucleoporin translocated promoter region (Tpr) associates with dynein complex, preventing chromosome lagging formation during mitosis. The Journal of biological chemistry 80 20133940
2001 The nucleoporin Nup98 associates with the intranuclear filamentous protein network of TPR. Proceedings of the National Academy of Sciences of the United States of America 79 11248057
1998 Identification of a novel cellular TPR-containing protein, SGT, that interacts with the nonstructural protein NS1 of parvovirus H-1. Journal of virology 75 9557704
2014 A novel fusion of TPR and ALK in lung adenocarcinoma. Journal of thoracic oncology : official publication of the International Association for the Study of Lung Cancer 73 24736082
2011 Self-recognition mechanism of MamA, a magnetosome-associated TPR-containing protein, promotes complex assembly. Proceedings of the National Academy of Sciences of the United States of America 70 21784982
1995 Efficient cell transformation by the Tpr-Met oncoprotein is dependent upon tyrosine 489 in the carboxy-terminus. Oncogene 70 7838524
2011 The Tpr protein regulates export of mRNAs with retained introns that traffic through the Nxf1 pathway. RNA (New York, N.Y.) 69 21613532
1997 Chromosome 1 rearrangements involving the genes TPR and NTRK1 produce structurally different thyroid-specific TRK oncogenes. Genes, chromosomes & cancer 68 9172002
2012 Structure of the TPR domain of AIP: lack of client protein interaction with the C-terminal α-7 helix of the TPR domain of AIP is sufficient for pituitary adenoma predisposition. PloS one 64 23300914
1999 Loss of the exon encoding the juxtamembrane domain is essential for the oncogenic activation of TPR-MET. Oncogene 62 10435641
2008 Extracellular signal-regulated kinase 2 (ERK2) phosphorylation sites and docking domain on the nuclear pore complex protein Tpr cooperatively regulate ERK2-Tpr interaction. Molecular and cellular biology 61 18794356
2013 Spindle assembly checkpoint robustness requires Tpr-mediated regulation of Mad1/Mad2 proteostasis. The Journal of cell biology 58 24344181
2012 Localization of nucleoporin Tpr to the nuclear pore complex is essential for Tpr mediated regulation of the export of unspliced RNA. PloS one 57 22253824
2004 Multiple TPR motifs characterize the Fanconi anemia FANCG protein. DNA repair 57 14697762
1995 Fission yeast TPR-family protein nuc2 is required for G1-arrest upon nitrogen starvation and is an inhibitor of septum formation. Journal of cell science 56 7622618
1987 Characterization of the rearranged tpr-met oncogene breakpoint. Molecular and cellular biology 55 3821733
2011 Macrocycles that inhibit the binding between heat shock protein 90 and TPR-containing proteins. ACS chemical biology 53 21950602
2011 Canoe binds RanGTP to promote Pins(TPR)/Mud-mediated spindle orientation. The Journal of cell biology 53 22024168
1993 BIMA, a TPR-containing protein required for mitosis, localizes to the spindle pole body in Aspergillus nidulans. The Journal of cell biology 51 8432735
2011 Designed hybrid TPR peptide targeting Hsp90 as a novel anticancer agent. Journal of translational medicine 50 21235734
1997 Regulation of the urokinase-type plasminogen activator gene by the oncogene Tpr-Met involves GRB2. Oncogene 49 9038378
1990 Mouse vimentin: structural relationship to fos, jun, CREB and tpr. Oncogene 48 2140597
2002 Nucleocytoplasmic transport of proteins and poly(A)+ RNA in reconstituted Tpr-less nuclei in living mammalian cells. Genes to cells : devoted to molecular & cellular mechanisms 47 11952838
2020 TPR is required for the efficient nuclear export of mRNAs and lncRNAs from short and intron-poor genes. Nucleic acids research 46 33091126
2012 Regulation of autophagy by nucleoporin Tpr. Scientific reports 46 23170199
2000 An aspartic acid residue in TPR-1, a specific region of protein-priming DNA polymerases, is required for the functional interaction with primer terminal protein. Journal of molecular biology 46 11090274
2015 Avian Reovirus Protein p17 Functions as a Nucleoporin Tpr Suppressor Leading to Activation of p53, p21 and PTEN and Inactivation of PI3K/AKT/mTOR and ERK Signaling Pathways. PloS one 44 26244501
2008 Chaperone ligand-discrimination by the TPR-domain protein Tah1. The Biochemical journal 44 18412542
2019 Architecture of the Cellulose Synthase Outer Membrane Channel and Its Association with the Periplasmic TPR Domain. Structure (London, England : 1993) 43 31604608
1997 The prp1+ gene required for pre-mRNA splicing in Schizosaccharomyces pombe encodes a protein that contains TPR motifs and is similar to Prp6p of budding yeast. Genetics 43 9286671
2010 Self-association of TPR domains: Lessons learned from a designed, consensus-based TPR oligomer. Proteins 41 20455268
2018 Tpr regulates the total number of nuclear pore complexes per cell nucleus. Genes & development 40 30228202
2005 Proximity of TPR and NTRK1 rearranging loci in human thyrocytes. Cancer research 40 15805251
1992 The human tpr gene encodes a protein of 2094 amino acids that has extensive coiled-coil regions and an acidic C-terminal domain. Oncogene 40 1437155
2007 Oncogenic activation of the Met receptor tyrosine kinase fusion protein, Tpr-Met, involves exclusion from the endocytic degradative pathway. Oncogene 39 17533376
2020 Nucleoporin TPR (translocated promoter region, nuclear basket protein) upregulation alters MTOR-HSF1 trails and suppresses autophagy induction in ependymoma. Autophagy 36 32207633
2010 The repeat domain of the type III effector protein PthA shows a TPR-like structure and undergoes conformational changes upon DNA interaction. Proteins 36 20848643
2006 TPR Proteins in Plant Hormone Signaling. Plant signaling & behavior 36 19704665
2021 The human nucleoporin Tpr protects cells from RNA-mediated replication stress. Nature communications 35 34168151
2013 Comparison of CDC and sequence-based molecular typing of syphilis treponemes: tpr and arp loci are variable in multiple samples from the same patient. BMC microbiology 34 23898829
1990 TPR-MET oncogenic rearrangement: detection by polymerase chain reaction amplification of the transcript and expression in human tumor cell lines. Proceedings of the National Academy of Sciences of the United States of America 34 2300559
2013 Chaperone-interacting TPR proteins in Caenorhabditis elegans. Journal of molecular biology 33 23727266
2004 RoXaN, a novel cellular protein containing TPR, LD, and zinc finger motifs, forms a ternary complex with eukaryotic initiation factor 4G and rotavirus NSP3. Journal of virology 33 15047801
1998 Molecular segments of protein Tpr that confer nuclear targeting and association with the nuclear pore complex. Experimental cell research 33 9828100
1993 Characterization of the tpr gene product and isolation of a specific protease-deficient mutant of Porphyromonas gingivalis W83. Infection and immunity 33 8406803
2004 The crystal structure of Helicobacter cysteine-rich protein C at 2.0 A resolution: similar peptide-binding sites in TPR and SEL1-like repeat proteins. Journal of molecular biology 32 15223324
2015 The Non-canonical Tetratricopeptide Repeat (TPR) Domain of Fluorescent (FLU) Mediates Complex Formation with Glutamyl-tRNA Reductase. The Journal of biological chemistry 31 26037924
2011 Silencing nuclear pore protein Tpr elicits a senescent-like phenotype in cancer cells. PloS one 31 21811608
2009 Karyopherin binding interactions and nuclear import mechanism of nuclear pore complex protein Tpr. BMC cell biology 30 19835572
2005 RNAi technology and lentiviral delivery as a powerful tool to suppress Tpr-Met-mediated tumorigenesis. Cancer gene therapy 30 15719029
2004 The human small glutamine-rich TPR-containing protein is required for progress through cell division. Experimental cell research 30 14729056
2001 Absence of tpr-met and expression of c-met in human gastric mucosa and carcinoma. The Journal of pathology 29 11523050
2014 Roles of the nucleoporin Tpr in cancer and aging. Advances in experimental medicine and biology 28 24563354
2014 Phosphorylation of nucleoporin Tpr governs its differential localization and is required for its mitotic function. Journal of cell science 28 24938596
2015 Therapeutic potential of mitotic interaction between the nucleoporin Tpr and aurora kinase A. Cell cycle (Georgetown, Tex.) 27 25789545
2008 The human TPR protein TTC4 is a putative Hsp90 co-chaperone which interacts with CDC6 and shows alterations in transformed cells. PloS one 27 18320024
2007 TPR-Mediated self-association of plant SGT1. Biochemistry 27 17877371
2007 Structurally related TPR subunits contribute differently to the function of the anaphase-promoting complex in Drosophila melanogaster. Journal of cell science 27 17878237
2020 Cancer-derived UTX TPR mutations G137V and D336G impair interaction with MLL3/4 complexes and affect UTX subcellular localization. Oncogene 26 32071397
2019 TPR-containing proteins control protein organization and homeostasis for the endoplasmic reticulum. Critical reviews in biochemistry and molecular biology 26 31023093
2002 Structures and dynamics of Drosophila Tpr inconsistent with a static, filamentous structure. Experimental cell research 26 12027452
2021 Truncation of the TPR domain of OGT alters substrate and glycosite selection. Analytical and bioanalytical chemistry 25 34725712
2019 Nuclear pore protein TPR associates with lamin B1 and affects nuclear lamina organization and nuclear pore distribution. Cellular and molecular life sciences : CMLS 25 30762072
2012 The TPR domain in the host Cyp40-like cyclophilin binds to the viral replication protein and inhibits the assembly of the tombusviral replicase. PLoS pathogens 25 22346747
2004 Novel interaction partners of the TPR/MET tyrosine kinase. FASEB journal : official publication of the Federation of American Societies for Experimental Biology 24 15546961
1996 Product of the oncogene-activating gene Tpr is a phosphorylated protein of the nuclear pore complex. Journal of cellular biochemistry 24 8726355

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