Transcription initiation factor IIF, beta subunit (IPR003196)

Short name: TFIIF_beta

Overlapping homologous superfamilies


Family relationships



Accurate transcription in vivo requires at least six general transcription initiation factors, in addition to RNA polymerase II. Transcription initiation factor IIF (TFIIF) is a tetramer consisting of two large subunits (TFIIF alpha or RAP74) and two small subunits (TFIIF beta or RAP30) [PMID: 7596813]. The beta subunit of TFIIF is required for recruitment of RNA polymerase II onto the promoter.

GO terms

Biological Process

GO:0006366 transcription by RNA polymerase II
GO:0006367 transcription initiation from RNA polymerase II promoter

Molecular Function

No terms assigned in this category.

Cellular Component

GO:0005674 transcription factor TFIIF complex

Contributing signatures

Signatures from InterPro member databases are used to construct an entry.