Structural highlights
Function
[PB2_I75A0] Plays an essential role in transcription initiation and cap-stealing mechanism, in which cellular capped pre-mRNAs are used to generate primers for viral transcription. Binds the cap of the target pre-RNA which is subsequently cleaved after 10-13 nucleotides by PA. Plays a role in the initiation of the viral genome replication and modulates the activity of the ribonucleoprotein (RNP) complex. In addition, participates in the inhibition of type I interferon induction through interaction with the host mitochondrial antiviral signaling protein MAVS.[UniProtKB:P03428]
