UniProt Summary: General coactivator that functions cooperatively with TAFs and mediates functional interactions between upstream activators and the general transcriptional machinery. May be involved in stabilizing the multiprotein transcription complex. Binds single-stranded DNA. Also binds, in vitro, non-specifically to double-stranded DNA (ds DNA). {ECO:0000269|PubMed:16605275, ECO:0000269|PubMed:16689930, ECO:0000269|PubMed:7628453, ECO:0000269|PubMed:8062391, ECO:0000269|PubMed:8062392, ECO:0000269|PubMed:9360603, ECO:0000269|PubMed:9482861}.
Pfam DomainsGO Terms
Pfam Domains
PC4
GO Terms
sequence-specific double-stranded DNA binding
positive regulation of transcription initiation from RNA polymerase II promoter
positive regulation of DNA-templated transcription, initiation
regulation of transcription initiation from RNA polymerase II promoter
regulation of DNA-templated transcription, initiation
SMAD protein signal transduction
single-stranded DNA binding
transmembrane receptor protein serine/threonine kinase signaling pathway