cl26792: TF_Zn_Ribbon Superfamily (this model, PSSM-Id:331613 is obsolete)
TFIIB zinc-binding
The transcription factor TFIIB contains a zinc-binding motif near the N-terminus. This domain is involved in the interaction with RNA pol II and TFIIF and plays a crucial role in selecting the transcription initiation site. The domain adopts a zinc ribbon like structure.
Jiyao W et al.(2023). "The conserved domain database in 2023.",