General transcription factor IIF, polypeptide 2, 30kDa
Transcription initiation factor IIF subunit beta
Transcription initiation factor RAP30
TFIIF is a general transcription initiation factor that binds to RNA polymerase II and helps to recruit it to the initiation complex in collaboration with TFIIB. It promotes transcription elongation. This subunit shows ATP-dependent DNA-helicase activity.
Belongs to the TFIIF beta subunit family.
Phosphorylated upon DNA damage, probably by ATM or ATR.