Transcription initiation factor TFIID subunit 9B (TAF9B) is a 251-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q9HBM6.
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The mean pLDDT of this model is 66.6 (low overall). pLDDT is AlphaFold's per-residue confidence score from 0 to 100. In MolViewer, choose the B-factor color scheme to color the model by pLDDT, because AlphaFold stores it in the B-factor column.
| pLDDT band | Meaning | Share of residues |
|---|---|---|
| Above 90 | Very high: backbone and side chains are usually accurate | 30% |
| 70 to 90 | Confident: backbone generally right | 19% |
| 50 to 70 | Low: treat with caution | 14% |
| Below 50 | Very low: often disordered regions | 38% |
What pLDDT means and how to read it
Essential for cell viability. TAF9 and TAF9B are involved in transcriptional activation as well as repression of distinct but overlapping sets of genes. May have a role in gene regulation associated with apoptosis. TAFs are components of the transcription factor IID (TFIID) complex, the TBP-free TAFII complex (TFTC), the PCAF histone acetylase complex and the STAGA transcription coactivator-HAT complex. TFIID or TFTC are essential for the regulation of RNA polymerase II-mediated transcription
Binds TAF5 and TAF6. Component of TFIID and the TATA-binding protein-free TAF complex (TFTC). TFIID is composed of TATA binding protein (TBP) and a number of TBP-associated factors (TAFs). Binds N-terminal domain of p53/TP53 which is essential for transcription
Nucleus
Compare the prediction with experimentally determined structures of the same protein:
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