TRIM21

Gene Information

Official Symbol: TRIM21
Official Name: tripartite motif containing 21
Aliases and Previous Symbols: N/A
Entrez ID: 6737
UniProt: P19474
Interactions: BioGRID
PubMed articles: Open PubMed
OMIM: Open OMIM

Function Summary

Entrez Summary: N/A
UniProt Summary: E3 ubiquitin-protein ligase whose activity is dependent on E2 enzymes, UBE2D1, UBE2D2, UBE2E1 and UBE2E2. Forms a ubiquitin ligase complex in cooperation with the E2 UBE2D2 that is used not only for the ubiquitination of USP4 and IKBKB but also for its self-ubiquitination. Component of cullin-RING-based SCF (SKP1-CUL1-F-box protein) E3 ubiquitin-protein ligase complexes such as SCF(SKP2)-like complexes. A TRIM21-containing SCF(SKP2)- like complex is shown to mediate ubiquitination of CDKN1B ('Thr- 187' phosphorylated-form), thereby promoting its degradation by the proteasome. Monoubiquitinates IKBKB that will negatively regulates Tax-induced NF-kappa-B signaling. Negatively regulates IFN-beta production post-pathogen recognition by polyubiquitin- mediated degradation of IRF3. Mediates the ubiquitin-mediated proteasomal degradation of IgG1 heavy chain, which is linked to the VCP-mediated ER-associated degradation (ERAD) pathway. Promotes IRF8 ubiquitination, which enhanced the ability of IRF8 to stimulate cytokine genes transcription in macrophages. Plays a role in the regulation of the cell cycle progression. Enhances the decapping activity of DCP2. Exists as a ribonucleoprotein particle present in all mammalian cells studied and composed of a single polypeptide and one of four small RNA molecules. At least two isoforms are present in nucleated and red blood cells, and tissue specific differences in RO/SSA proteins have been identified. The common feature of these proteins is their ability to bind HY RNAs.2. Involved in the regulation of innate immunity and the inflammatory response in response to IFNG/IFN-gamma. Organizes autophagic machinery by serving as a platform for the assembly of ULK1, Beclin 1/BECN1 and ATG8 family members and recognizes specific autophagy targets, thus coordinating target recognition with assembly of the autophagic apparatus and initiation of autophagy. Acts as an autophagy receptor for the degradation of IRF3, hence attenuating type I interferon (IFN)-dependent immune responses (PubMed:26347139). {ECO:0000269|PubMed:16297862, ECO:0000269|PubMed:16316627, ECO:0000269|PubMed:16472766, ECO:0000269|PubMed:16880511, ECO:0000269|PubMed:18022694, ECO:0000269|PubMed:18361920, ECO:0000269|PubMed:18641315, ECO:0000269|PubMed:18845142, ECO:0000269|PubMed:19675099, ECO:0000269|PubMed:26347139}.

Pfam Domains GO Terms

CRISPR Data

Compound Hit Most Correlated Genes in Chemogenomics Tissues where Essential in the Avana Dataset (DepMap 20Q1)

Global Fraction of Cell Lines Where Essential: 0/739

Tissue	Fraction Of Cell Lines Where Essential
1290807.0	0/1
909776.0	0/1
bile duct	0/28
blood	0/28
bone	0/26
breast	0/33
central nervous system	0/56
cervix	0/4
colorectal	0/17
esophagus	0/13
fibroblast	0/1
gastric	0/16
kidney	0/21
liver	0/20
lung	0/75
lymphocyte	0/16
ovary	0/26
pancreas	0/24
peripheral nervous system	0/16
plasma cell	0/15
prostate	0/1
skin	0/24
soft tissue	0/9
thyroid	0/2
upper aerodigestive	0/22
urinary tract	0/29
uterus	0/5

Essentiality in NALM6

Essentiality Rank: 7617
Expression level (log2 read counts): 3.98

Expression Distribution

Screen	Score
D-Fructose 10000μM R06 exp279	-1.78
HMS-I2 10μM R06 exp288	2.08

zf-B box
zf-C3HC4
SPRY

negative regulation of protein deubiquitination
positive regulation of viral entry into host cell
regulation of protein deubiquitination
negative regulation of viral release from host cell
negative regulation of viral transcription
regulation of viral entry into host cell
regulation of viral release from host cell
protein destabilization
protein trimerization
positive regulation of viral life cycle
protein monoubiquitination
SCF ubiquitin ligase complex
regulation of viral transcription
protein autoubiquitination
autophagosome
interferon-gamma-mediated signaling pathway
negative regulation of viral life cycle
negative regulation of NF-kappaB transcription factor activity
negative regulation of protein modification by small protein conjugation or removal
P-body
negative regulation of viral process
positive regulation of viral process
positive regulation of autophagy
regulation of type I interferon production
regulation of viral life cycle
ribonucleoprotein complex
negative regulation of DNA-binding transcription factor activity
cellular response to interferon-gamma
response to interferon-gamma
regulation of viral process
negative regulation of multi-organism process
regulation of symbiosis, encompassing mutualism through parasitism
regulation of protein modification by small protein conjugation or removal
ubiquitin-protein transferase activity
cytoplasmic vesicle
positive regulation of DNA-binding transcription factor activity
regulation of protein stability
protein polyubiquitination
negative regulation of locomotion
regulation of autophagy