UniProt functional annotation for Q3KSS8

UniProt code: Q3KSS8.

Organism: Epstein-Barr virus (strain GD1) (HHV-4) (Human herpesvirus 4).
Taxonomy: Viruses; Duplodnaviria; Heunggongvirae; Peploviricota; Herviviricetes; Herpesvirales; Herpesviridae; Gammaherpesvirinae; Lymphocryptovirus.
 
Function: Plays a key role in the switch from latent infection to lytic cycle producing new virions. Acts as a transcription factor, inducing early lytic cycle genes, and as a origin binding protein for genome replication. BZLF1 activates the promoter of another EBV gene (BSLF2+BMLF1). {ECO:0000250|UniProtKB:P03206}.
 
Subunit: Homodimer. Interacts with human UBN1, CRTC2 and RACK1. Interacts (via N-terminus) with human PAX5 (via N-terminus); this interaction inhibits BZLF1-mediated lytic viral reactivation. {ECO:0000250|UniProtKB:P03206}.
Subcellular location: Host nucleus {ECO:0000250|UniProtKB:P03206}.
Similarity: Belongs to the bZIP family. {ECO:0000305}.

Annotations taken from UniProtKB at the EBI.