TRI26_HUMAN Loading...

Tripartite motif-containing protein 26

E3 ubiquitin-protein ligase which regulates the IFN-beta production and antiviral response downstream of various DNA-encoded pattern-recognition receptors (PRRs). Also plays a central role in determining the response to different forms of oxidative stress by controlling levels of DNA glycosylases NEIL1, NEIL3 and NTH1 that are involved in repair of damaged DNA^1,2. Promotes nuclear IRF3 ubiquitination and proteasomal degradation³. Bridges together TBK1 and NEMO during the innate response to viral infection leading to the activation of TBK1. Positively regulates LPS-mediated inflammatory innate immune response by catalyzing the 'Lys-11'-linked polyubiquitination of TAB1 to enhance its activation and subsequent NF-kappa-B and MAPK signaling⁴. In a manner independent of its catalytic activity, inhibits WWP2, a SOX2-directed E3 ubiquitin ligase, and thus protects SOX2 from polyubiquitination and proteasomal degradation⁵. Ubiquitinates the histone acetyltransferase protein complex component PHF20 and thereby triggers its degradation in the nucleus after its recruitment by the histone demethylase KDM6B, serving as a scaffold protein⁶. Upon induction by TGF-beta, ubiquitinates the TFIID component TAF7 for proteasomal degradation⁷. Induces ferroptosis by ubiquitinating SLC7A11, a critical protein for lipid reactive oxygen species (ROS) scavenging (By similarity). Inhibits directly hepatitis B virus replication by mediating HBX ubiquitination and subsequent degradation⁸. (Microbial infection) Promotes herpes simplex virus type 2/HHV-2 infection in vaginal epithelial cells by decreasing the nuclear localization of IRF3, the primary mediator of type I interferon activation.

AlphaFold DB , UniProt , Accession Q12899, Species HUMAN (Homo sapiens, Human), Gene TRIM26, Length 539 aa.