UniProt Summary: E3 ubiquitin-protein ligase that plays a key role in innate antiviral immunity (PubMed:21289118). In response to pathogen- and host-derived double-stranded DNA (dsDNA), targets TMEM173/STING to 'Lys-63'-linked ubiquitination, thereby promoting its homodimerization, a step required for the production of type I interferon IFN-beta (By similarity). Independently of its E3 ubiquitin ligase activity, positive regulator of TLR3 signaling. Potentiates extracellular double stranded RNA (dsRNA)-induced expression of IFNB1 and interferon-stimulated genes ISG15, IFIT1/ISG56, CXCL10, OASL and CCL5/RANTES. Promotes establishment of an antiviral state by TLR3 ligand and TLR3-mediated chemokine induction following infection by hepatitis C virus (PubMed:22948160). {ECO:0000250|UniProtKB:Q80VI1, ECO:0000269|PubMed:21289118, ECO:0000269|PubMed:22948160}.
Pfam DomainsGO Terms
Pfam Domains
zf-C3HC4
zf-B box
GO Terms
interferon-beta production
type I interferon production
protein K63-linked ubiquitination
response to type I interferon
regulation of type I interferon production
cytokine production
defense response to virus
ubiquitin-protein transferase activity
response to virus
protein polyubiquitination
protein ubiquitination
regulation of cytokine production
innate immune response
protein modification by small protein conjugation
zinc ion binding
defense response to other organism
protein modification by small protein conjugation or removal
immune effector process
response to cytokine
response to other organism
response to external biotic stimulus
response to biotic stimulus
defense response
RNA binding
immune response
CRISPR Data
Compound HitMost Correlated Genes in ChemogenomicsTissues where Essential in the Avana Dataset (DepMap 20Q1)
Compound Hit
No hits were found.
Most Correlated Genes in Chemogenomics
No correlation found to any other genes in chemogenomics.
Tissues where Essential in the Avana Dataset (DepMap 20Q1)
Global Fraction of Cell Lines Where Essential: 0/739