| 2008 |
TRIM2 is an UbcH5a-dependent E3 ubiquitin ligase that binds to neurofilament light subunit (NF-L) and regulates NF-L ubiquitination; mice deficient in TRIM2 accumulate NF-L in axons leading to axonopathy and neurodegeneration. |
In vitro ubiquitination assay with UbcH5a, co-immunoprecipitation of TRIM2 with NF-L, TRIM2 knockout mouse model with histopathological analysis |
Proceedings of the National Academy of Sciences of the United States of America |
High |
18687884
|
| 2010 |
TRIM2 regulates axon specification in hippocampal neurons by ubiquitinating NF-L; RNAi knockdown abolishes neuronal polarity (no axon formed) while overexpression induces multiple axons. |
RNA interference knockdown and overexpression in cultured mouse hippocampal neurons with morphological analysis; mechanistic link via NF-L ubiquitination |
Journal of neurochemistry |
Medium |
20796172
|
| 2011 |
TRIM2 is the E3 ubiquitin ligase that ubiquitinates the pro-apoptotic protein Bim; TRIM2 binds Bim only when Bim is phosphorylated by p42/p44 MAPK (does not interact with nonphosphorylatable 3ABim mutant), and TRIM2 immunodepletion reduces Bim ubiquitination; TRIM2 suppression stabilizes Bim and blocks neuroprotection in rapid ischemic tolerance. |
Proteomics/mass spectrometry substrate identification using phospho-GST-Bim as bait, co-immunoprecipitation, immunodepletion assay, lentiviral shRNAmir knockdown in neurons, phosphomutant Bim analysis |
The Journal of biological chemistry |
High |
21478148
|
| 2013 |
Loss-of-function compound heterozygous mutations in TRIM2 cause early-onset axonal neuropathy in humans, with absence of TRIM2 protein leading to axonal accumulation of neurofilaments, consistent with the mouse Trim2 gene-trap model. |
Whole-exome sequencing, mRNA/protein stability analysis in patient fibroblasts, sural nerve biopsy histopathology, comparison with Trim2 gene-trap mouse model |
Human molecular genetics |
Medium |
23562820
|
| 2017 |
TRIM2 acts downstream of GPER-activated MAPK/ERK signaling to ubiquitinate and degrade Bim, contributing to tamoxifen resistance in ER+ breast cancer cells; MAPK/ERK (not PI3K/AKT) activation increases TRIM2 levels and enhances TRIM2–Bim binding. |
Co-immunoprecipitation, Western blot, Bim overexpression/knockdown in MCF-7 and MCF-7R cells, pathway inhibitor studies |
International journal of oncology |
Medium |
28902352
|
| 2019 |
TRIM2 restricts New World arenavirus (Junín, Tacaribe) entry into cells; this antiviral activity is independent of the RING domain (ubiquitin ligase activity). TRIM2 interacts with SIRPA (signal regulatory protein α), a known inhibitor of phagocytosis, and TRIM2 limits phagocytosis of apoptotic cells. |
Trim2-knockout mice and patient fibroblasts challenged with NWA, TRIM2 RING-domain mutant constructs, interactome analysis identifying SIRPA, phagocytosis assays |
PLoS biology |
High |
30726215
|
| 2020 |
TRIM2 interacts with and deubiquitinates/stabilizes Snail1 protein in lung adenocarcinoma cells, reducing Snail1 ubiquitination-dependent degradation and promoting EMT, proliferation, and invasion. |
Co-immunoprecipitation, Western blot, ubiquitination assay, TRIM2 overexpression and knockdown in lung adenocarcinoma cell lines |
Cancer cell international |
Low |
32536816
|
| 2020 |
In Xenopus, TRIM2 interacts with ALIX (ALG-2 interacting protein X) of the ESCRT complex; trim2 morphant embryos show clustering and apoptosis of neural progenitors phenocopying Alix KO, suggesting TRIM2–ALIX interaction regulates neural progenitor survival during neurogenesis. |
GST-Trim2 pulldown from Xenopus embryonic lysates with LC-MS/MS identification of ALIX, co-expression analysis, morpholino knockdown with phenotypic characterization |
Cells |
Medium |
32698497
|
| 2020 |
Trim2-null (CRISPR-Cas9) mice develop axonal neuropathy with NF-L accumulation in axons; a separate partial RING-domain deletion strain (Trim2C/C) with reduced ubiquitination activity does not recapitulate this neuropathy, suggesting the axonopathy may not require full ubiquitin ligase activity. |
CRISPR-Cas9 knockout mice, histopathology of multiple neuronal populations, comparison of two Trim2 mutant alleles with different domain deletions |
Neurobiology of disease |
Medium |
32205255
|
| 2022 |
The RING domain of human TRIM3 (TRIM2 paralog) is monomeric and inactive due to placental mammal-specific amino acid changes that prevent self-association but not E2 recognition; TRIM3 activity is restored by substituting the relevant region with TRIM2 sequence or by heterodimerization with TRIM2. TRIM2 and TRIM3 interact in cells via their filamin and coiled-coil domains, respectively. |
Crystal structure / structure-function analysis of RING domains, mutagenesis, in vitro E3 ligase assays, cellular co-immunoprecipitation |
Nature communications |
High |
36481767
|
| 2022 |
TRIM2 promotes p53 ubiquitination and degradation in colorectal cancer cells; CEBPB acts as an upstream transcription factor that binds the TRIM2 promoter and drives its expression in response to epinephrine, linking stress signaling to p53 stability. |
Chromatin immunoprecipitation (ChIP) for CEBPB binding to TRIM2 promoter, co-immunoprecipitation of TRIM2 with p53, ubiquitination assay, transcriptome sequencing |
Journal of translational medicine |
Medium |
35672760
|
| 2024 |
TRIM2 specifically interacts with CPT1A (carnitine O-palmitoyltransferase 1, the rate-limiting enzyme of fatty acid oxidation) and enhances its enzymatic activity, thereby regulating intracellular lipid levels and protecting cancer cells from glutamine deprivation-induced apoptosis; TRIM2 expression in this context is induced by ATF4. |
Co-immunoprecipitation of TRIM2 with CPT1A, CPT1A enzymatic activity assay, lipid level measurement, TRIM2 knockdown/overexpression with apoptosis and proliferation assays, xenograft tumor growth |
The FEBS journal |
Medium |
38949993
|
| 2024 |
TRIM2 interacts with CYP11B2 (aldosterone synthase) via its RBCC domain and promotes K29/K48-linked polyubiquitination and proteasomal degradation of CYP11B2, thereby reducing aldosterone production in adrenal tumor cells. |
siRNA E3 ligase screen, co-immunoprecipitation of TRIM2 with CYP11B2, ubiquitination assay specifying K29/K48 linkages, overexpression assays in adrenal tumor cells measuring aldosterone levels |
Cellular and molecular life sciences : CMLS |
Medium |
39725733
|
| 2024 |
TRIM2 knockdown in endothelial cells attenuates inflammation-driven (but not hypoxia-driven) angiogenesis by reducing nuclear HIF-1α accumulation and downstream eNOS phosphorylation; Trim2-/- mice show reduced adventitial neovascularization in an inflammation model but not in hindlimb ischemia. |
CRISPR/Cas9 Trim2-/- mice in periarterial collar and hindlimb ischemia models, lentiviral shRNA knockdown in endothelial cells, HIF-1α nuclear fractionation, eNOS phosphorylation Western blot |
International journal of molecular sciences |
Medium |
38542330
|
| 2025 |
TRIM2 directly interacts with the pro-apoptotic protein BNIP3 and mediates K48-linked polyubiquitination of BNIP3 at lysine 130 (K130), targeting it for proteasomal degradation; mutation K130R abolishes TRIM2-mediated ubiquitination, stabilizes BNIP3, and increases cell death; this TRIM2–BNIP3 axis protects against intestinal ischemia-reperfusion injury. |
Co-immunoprecipitation of TRIM2 with BNIP3, site-directed mutagenesis (K130R), ubiquitination assay specifying K48 linkage, TRIM2 genetic deletion mouse model, hypoxia/reoxygenation cell death assay |
Communications biology |
High |
40883557
|
| 2026 |
Using ubiquitin-specific proximity labeling in cells, TRIM2 was found to target proteins of the endolysosomal pathway; specifically, TRIM2 ubiquitinates TMEM106B at lysine residues in its cytosolic N-terminal region. Substrate recognition involves a direct interaction between TRIM2 and a zinc-coordination motif in TMEM106B that mediates homodimerization and is required for lysosomal size regulation. The tripartite motif of TRIM2 (beyond the RING) contributes to substrate recruitment. |
Ubiquitin-specific proximity labeling (UbID), biochemical pulldown, structural studies, site-directed mutagenesis of TMEM106B lysine residues, lysosomal size assays |
EMBO reports |
High |
41484378
|
| 2025 |
TRIM2 knockdown and overexpression in primary neurons regulate NF-L protein levels and α-synuclein aggregation, suggesting TRIM2 modulates both substrates relevant to Parkinson's disease neuropathology. |
Lentiviral knockdown and overexpression in primary neurons, measurement of NF-L levels and α-synuclein aggregation; peripheral proteomic analysis showing increased plasma/CSF NF-L in TRIM2 SNP carriers |
bioRxivpreprint |
Low |
bio_10.1101_2025.02.21.25322301
|
| 2025 |
TRIM2 is an m6A-modified substrate of YTHDF3; TRIM2 interacts with and ubiquitinates p53, promoting its degradation via the ubiquitin-proteasome system in uveal melanoma cells. |
RIP-qPCR confirming m6A modification of TRIM2 by YTHDF3, co-immunoprecipitation of TRIM2 with p53, cycloheximide chase assay demonstrating TRIM2-mediated p53 degradation |
Cellular signalling |
Medium |
41391676
|
| 2014 |
Crystallization of the C-terminal NHL domain of human TRIM2 (residues 465–744) yielded crystals diffracting to 1.7 Å resolution (space group P21), enabling structural characterization of this substrate-recognition domain. |
Recombinant protein expression/purification, X-ray crystallography, molecular replacement phasing |
Acta crystallographica. Section F, Structural biology communications |
Low |
24817735
|