InnateDB: Systems Biology of the Innate Immune Response

Homo sapiens Protein: TRIM33

Summary

InnateDB Protein

IDBP-101290.7

Last Modified

2014-10-13 [Report errors or provide feedback]

Gene Symbol

TRIM33

Protein Name

tripartite motif containing 33

Synonyms

Species

Homo sapiens

Ensembl Protein

ENSP00000358556

InnateDB Gene

IDBG-101286 (TRIM33)

Protein Structure

UniProt Annotation

Function

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 (By similarity). 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). {ECO:0000250, ECO:0000269PubMed:10022127, ECO:0000269PubMed:15820681, ECO:0000269PubMed:16751102, ECO:0000269PubMed:19135894}.

Subcellular Localization

Nucleus {ECO:0000269PubMed:15820681, ECO:0000269PubMed:16751102, ECO:0000269PubMed:19135894}. Note=In discrete nuclear dots resembling nuclear bodies. {ECO:0000250}.

Disease Associations

Thyroid papillary carcinoma (TPC) [MIM:188550]: A common tumor of the thyroid that typically arises as an irregular, solid or cystic mass from otherwise normal thyroid tissue. Papillary carcinomas are malignant neoplasm characterized by the formation of numerous, irregular, finger-like projections of fibrous stroma that is covered with a surface layer of neoplastic epithelial cells. Note=The disease is caused by mutations affecting the gene represented in this entry. A chromosomal aberration involving TRIM33 is found in thyroid papillary carcinomas. Translocation t(1;10)(p13;q11) with RET. The translocation generates the TRIM33/RET (PTC7) oncogene.

Tissue Specificity

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, small intestine, ovary, colon, skeletal muscle and hematopoietic progenitors.

Comments

Interactions

Number of Interactions

This gene and/or its encoded proteins are associated with 66 experimentally validated interaction(s) in this database.
They are also associated with 12 interaction(s) predicted by orthology.

Experimentally validated
Total	66 [view]
Protein-Protein	63 [view]
Protein-DNA	3 [view]
Protein-RNA	0
DNA-DNA	0
RNA-RNA	0
DNA-RNA	0

Predicted by orthology
Total	12 [view]

Gene Ontology

Molecular Function

Accession	GO Term
GO:0003677	DNA binding
GO:0004842	ubiquitin-protein transferase activity
GO:0005515	protein binding
GO:0008270	zinc ion binding
GO:0016874	ligase activity
GO:0070410	co-SMAD binding
GO:0070412	R-SMAD binding

Biological Process

GO:0000122	negative regulation of transcription from RNA polymerase II promoter
GO:0006351	transcription, DNA-templated
GO:0006367	transcription initiation from RNA polymerase II promoter
GO:0007179	transforming growth factor beta receptor signaling pathway
GO:0010467	gene expression
GO:0016567	protein ubiquitination
GO:0017015	regulation of transforming growth factor beta receptor signaling pathway
GO:0030514	negative regulation of BMP signaling pathway
GO:0045892	negative regulation of transcription, DNA-templated

Cellular Component

GO:0005622	intracellular
GO:0005634	nucleus
GO:0005654	nucleoplasm
GO:0043231	intracellular membrane-bounded organelle

Protein Structure and Domains

PDB ID

InterPro

IPR000315 Zinc finger, B-box
IPR001487 Bromodomain
IPR001841 Zinc finger, RING-type
IPR001965 Zinc finger, PHD-type
IPR003649 B-box, C-terminal
IPR011011 Zinc finger, FYVE/PHD-type
IPR019787 Zinc finger, PHD-finger

PFAM

PF00643
PF00439
PF13639
PF14634
PF00628

PRINTS

PR00503

PIRSF

SMART

SM00336
SM00297
SM00184
SM00249
SM00502

TIGRFAMs

Post-translational Modifications

Modification

Cross-References

SwissProt