TABLE 3.
TAF subunits of yeast TFIID
| Factor | Mass (kDa) | Gene(s) | Essential | Characteristics | Metazoan homolog(s) | Reference(s) |
|---|---|---|---|---|---|---|
| TAFII150 | 155 | TSM1 | Yes | dTAFII150 | 371, 385 | |
| TAFII145/TAFII130 | 121 | TAF130 | Yes | Scaffold for assembly of TFIID; directly contacts TBP | hTAFII250 (CCG1), dTAFII230 | 371, 385 |
| TAFII90 | 89 | TAF90 | Yes | dTAFII80 binds TFIIEα and TFIIFα | hTAFII100, dTAFII80 | 371, 388 |
| TAFII67 | 67 | TAF67 | Yes | hTAFII55 | 329 | |
| TAFII61/TAFII68 | 61 | TAF61 | Yes | Structural similarity to histone H2B | hTAFII15/20, dTAFII30α (p28/p22) | 329, 517 |
| TAFII60 | 58 | TAF60 | Yes | Structural similarity to histone H4 | hTAFII80, dTAFII60 | 371 |
| TAFII47 | 40 | TAF47 | Yes | None | 517 | |
| TAFII40 | 41 | TAF40 | Yes | dTAFII40 binds TFIIB | hTAFII28, dTAFII30β | 255, 329 |
| TAFII30 | 27 | TAF30, ANC1, TFG3, SWP29 | No | Subunit common to TFIID, TFIIF, and the SWI/SNF complex | AF-9, ENL | 55, 196, 531 |
| TAFII23/TAFII25 | 23 | TAF25 | Yes | hTAFII30 | 256, 329 | |
| TAFII19 | 19 | TAF19, FUN81 | hTAFII18 | 329 | ||
| TAFII17 | 17 | TAF17 | Yes | Structural similarity to histone H3 | hTAFII32, dTAFII40/42 | 329 |