Transcription Initiation Factor IIB

**Semantic type:** Amino Acid, Peptide, or Protein

**Definition:** Transcription initiation factor IIB (316 aa, ~95 kDa) is encoded by the human GTF2B gene. This protein plays a role in the initiation of RNA polymerase II-mediated gene transcription.

**Synonyms:** - GTF2B - General Transcription Factor IIB - General Transcription Factor TFIIB - RNA Polymerase II Transcription Factor IIB - S300-II