A transcription factor complex that is involved in regulating transcription from RNA polymerase III (Pol III) promoters. TFIIIB contains the TATA-binding protein (TBP) and two Pol III-specific proteins, B'' and BRF. (Gene Ontology, GO_0000126)
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1 proteins localized to the transcription factor tfiiib complex cellular component from the COMPARTMENTS Curated Protein Localization Evidence Scores dataset.