Single-stranded nucleic acid binding protein that binds preferentially to oligo dC.Major cellular poly(rC)-binding protein.Acts as a negative regulator of antiviral signaling .
基因名
PCBP2
蛋白名
Poly(rC)-binding protein 2
亚基
Identified in a mRNP complex, at least composed of DHX9,DDX3X, ELAVL1, HNRNPU, IGF2BP1, ILF3, PABPC1, PCBP2, PTBP2, STAU1,STAU2, SYNCRIP and YBX1. Interacts with IFIH1 and RNF135. Interacts
with MAVS (via C-terminus) and ITCH (via WW domains).
亚细胞定位
Nucleus. Cytoplasm. Loosely bound in the nucleus. May shuttle between the nucleus and the cytoplasm.
组织特异性
Detected in all tissues examined.
翻译后修饰
Phosphorylated. The non-phosphorylated form(s) exhibited the strongest poly(rC)-binding activity.
相似性
Contains 3 KH domains.
功能
Single-stranded nucleic acid binding protein that binds preferentially to oligo dC. Major cellular poly(rC)-binding protein. Binds also poly(rU). Negatively regulates cellular antiviral responses mediated by MAVS signaling. It acts as an adapter between MAVS and the E3 ubiquitin ligase ITCH, therefore triggering MAVS ubiquitinationa and degradation.