RIOK3
Function
Involved in regulation of type I interferon (IFN)-dependent immune response which plays a critical role in the innate immune response against DNA and RNA viruses. May act as an adapter protein essential for the recruitment of TBK1 to IRF3 (PubMed:24807708). Phosphorylates IFIH1 on 'Ser-828' interfering with IFIH1 filament assembly on long dsRNA and resulting in attenuated IFIH1-signaling (PubMed:25865883). Can inhibit CASP10 isoform 7-mediated activation of the NF-kappaB signaling pathway (PubMed:19557502). May play a role in the biogenesis of the 40S ribosomal subunit. Involved in the processing of 21S pre-rRNA to the mature 18S rRNA (PubMed:22418843).
Post-translational modifications
Autophosphorylated (in vitro).
Sequence Similarities
Belongs to the protein kinase superfamily. RIO-type Ser/Thr kinase family.
Tissue Specificity
Widely expressed.
Cellular localization
- Cytoplasm
Alternative names
SUDD, RIOK3, Serine/threonine-protein kinase RIO3, RIO kinase 3, sudD homolog