Immunohistochemistry analysis of human brain tissue using CSB-PA891796LA01HU at dilution of 1:100
Immunofluorescent analysis of MCF-7 cells using CSB-PA891796LA01HU at dilution of 1:100 and Alexa Fluor 488-congugated AffiniPure Goat Anti-Rabbit IgG(H+L)
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Acts as an E3 ubiquitin-protein ligase. Promotes SMAD4 ubiquitination, nuclear exclusion and degradation via the ubiquitin proteasome pathway. According to PubMed:16751102, does not promote a decrease in the level of endogenous SMAD4. May act as a transcriptional repressor. Inhibits the transcriptional response to TGF-beta/BMP signaling cascade. Plays a role in the control of cell proliferation. Its association with SMAD2 and SMAD3 stimulates erythroid differentiation of hematopoietic stem/progenitor. Monoubiquitinates SMAD4 and acts as an inhibitor of SMAD4-dependent TGF-beta/BMP signaling cascade (Monoubiquitination of SMAD4 hampers its ability to form a stable complex with activated SMAD2/3 resulting in inhibition of TGF-beta/BMP signaling cascade).
基因功能參考文獻(xiàn):
Tumors from paraneoplastic anti-TIF1gamma-positive cancer-associated myositis patients showed an increased number of genetic alterations, such as mutations and loss of heterozygosity, in TIF1 genes. PMID: 29149307
Data show that tripartite motif-containing protein 33 (TRIM33) silencing attenuates down-regulation of MYC and TGF-beta signaling in response to bromodomain and extraterminal domain protein inhibitors (BETi). PMID: 27432991
suggest that SnoN suppresses TGF-betainduced epithelial-mesenchymal transition and invasion of bladder cancer cells in a TIF1gammadependent manner PMID: 27430247
The adenovirus E4-ORF3 protein functions as a SUMO E3 ligase for TIF-1gamma sumoylation and poly-SUMO chain elongation. PMID: 27247387
our findings reveal a new mechanism by which SOX2-mediated transcription repression of TIF1gamma promotes TGF-beta-induced epithelial-mesenchymal transition in non-small-cell lung cancer PMID: 25961934
our work indicates that TIF1gamma exerts its tumor-suppressive functions in part by promoting chromosomal stability. PMID: 26282171
Results show that TRIM33 is significantly downregulated in clear renal cell carcinoma tissues which seems to correlate with pathologic stages and grades. PMID: 25381221
Study suggests TRIM33 and NRAS-CSDE1 as candidate genes for autism, and may provide a novel insight into the etiology of autism PMID: 24189344
The dermatomyositis autoantigen TIF1gamma is markedly up-regulated during muscle regeneration in human and mouse muscle cells. PMID: 25186009
Data indicate that tripartite motif containing 33 protein TIF1gamma promotes sumoylation of SKI-like proto-oncogene protein SnoN1 and regulates epithelial-mesenchymal transition (EMT). PMID: 25059663
regulates tumor growth and metastasis through inhibition of TGF-beta/Smad signaling and may serve as a novel prognostic biomarker in hepatocellular carcinoma PMID: 24954480
The ubiquitination of DHX33 by TRIM33 is lysine 63 specific and is required for the formation of the DHX33-NLRP3 inflammasome complex. PMID: 25172487
Results identify a new TGFbeta regulatory layer, whereby sumoylation strengthens the TIF1gamma repressive action on canonical TGFbeta signaling. PMID: 23788427
Case Report: suggest that TIF1gamma expression in neoplasms not only determines the tumour activity but also causes dermatomyositis. PMID: 23407650
mutation and methylation in the promoter region of TIF1gamma in non-small cell lung cancer PMID: 23676978
TRIM33 plays a role in PARP-dependent DNA damage response and regulates ALC1 activity by promoting its timely removal from sites of DNA damage. PMID: 23926104
These studies demonstrate that anti-NXP-2 and anti-TIF-1gamma antibodies are frequent DM specificities (found in 55% of patients) and are present in most patients with cancer-associated dermatomyositis. PMID: 24037894
TIF1gamma is an APC/C-interacting protein that regulates APC/C function. It is not a substrate for APC/C-dependent ubiquitylation but associates specifically with the APC/C holoenzyme & Cdc20 to affect APC/C activity & progression through mitosis. PMID: 23160376
Tif1gamma transgene is essential for the terminal differentiation of mammary alveolar epithelial cells at the end of pregnancy and to ensure lactation. PMID: 23154409
Data suggest that the formation of transient TIF1gamma-Smad2-Smad4 ternary complexes is the only one that can account for TGF-beta signaling. PMID: 22461896
Adenovirus E4orf3 targets TIF1 gamma for proteasome-dependent degradation during infection. PMID: 22205733
These results suggest that E4-ORF3 targets proteins for relocalization through a loosely homologous sequence dependent on accessibility. PMID: 22123502
Study reports an essential role for TRIM33 in the activation of Gsc and Mixl1 by nodal signals, and delineate how Smads gain access to poised promoters of master regulators under the command of nodal TGF-beta signals. PMID: 22196728
Data suggest that over-expression of TIF1gamma occurs in early stages of colorectal carcinogenesis, is inversely related with Smad4 loss, and may be a prognostic indicator for poor outcome. PMID: 22046087
TIF1gamma binds to and represses the plasminogen activator inhibitor 1 promoter, demonstrating a direct role of TIF1gamma in TGF-beta-dependent gene expression PMID: 21597466
TIF1gamma dictates the residence time of activated Smad complexes at promoters of TGF-beta superfamily target genes. PMID: 21726812
TIF1gamma was almost undetectable in leukemic cells of 35% of CMML patients. This downregulation was related to the hypermethylation of CpG sequences and specific histone modifications in the gene promoter. PMID: 21537084
regulation of adult hematopoiesis through TIF1gamma-mediated transcriptional repression of TAL1 and PU.1 target genes. PMID: 21474105
Chromatin immunoprecipitation assays in human CD34(+) cells supported a TIF1gamma-dependent recruitment of positive elongation factors to erythroid genes to promote transcription elongation by counteracting Pol II pausing. PMID: 20603019
These studies are consistent with a model in which TIF1gamma acts to ubiquitinate LDB1 leading to degradation of LDB1 and changes in transcription of LDB1-dependent promoters. PMID: 20447379
TIF1alpha interacts with TIF1gamma and the coiled-coil region of TIF1gamma is necessary for this interaction. PMID: 12096914
Thus, Smad2/3-TIF1gamma and Smad2/3-Smad4 function as complementary effector arms in the control of hematopoietic cell fate by the TGFbeta/Smad pathway. PMID: 16751102
Study reports that TIF1gamma expression is markedly down-regulated in human pancreatic tumors by quantitative RT-PCR and immunohistochemistry. PMID: 19629168
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A chromosomal aberration involving TRIM33 is found in papillary thyroid carcinomas (PTCs). Translocation t(1;10)(p13;q11) with RET. The translocation generates the TRIM33/RET (PTC7) oncogene.
亞細(xì)胞定位:
Nucleus.
蛋白家族:
TRIM/RBCC family
組織特異性:
Expressed in stem cells at the bottom of the crypts of the colon (at protein level). Expressed in colon adenomas and adenocarcinomas (at protein level). Expressed in brain, lung, liver, spleen, thymus, prostate, kidney, testis, heart, placenta, pancreas,