1R5U
RNA POLYMERASE II TFIIB COMPLEX
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A | DNA-directed RNA polymerase II largest subunit | polymer | 1733 | 191821.6 | 1 | UniProt (P04050) Pfam (PF04997) Pfam (PF05001) Pfam (PF00623) Pfam (PF04983) Pfam (PF05000) Pfam (PF04998) Pfam (PF04992) Pfam (PF04990) In PDB | Saccharomyces cerevisiae (baker's yeast) | B220 |
| 2 | B | DNA-directed RNA polymerase II 140 kDa polypeptide | polymer | 1224 | 138937.3 | 1 | UniProt (P08518) Pfam (PF04563) Pfam (PF04561) Pfam (PF04565) Pfam (PF04566) Pfam (PF04567) Pfam (PF00562) Pfam (PF04560) In PDB | Saccharomyces cerevisiae (baker's yeast) | B150, RNA polymerase II subunit 2 |
| 3 | C | DNA-directed RNA polymerase II 45 kDa polypeptide | polymer | 318 | 35330.5 | 1 | UniProt (P16370) Pfam (PF01193) Pfam (PF01000) In PDB | Saccharomyces cerevisiae (baker's yeast) | B44.5 |
| 4 | E | DNA-directed RNA polymerases I, II, and III 27 kDa polypeptide | polymer | 215 | 25117.1 | 1 | UniProt (P20434) Pfam (PF03871) Pfam (PF01191) In PDB | Saccharomyces cerevisiae (baker's yeast) | ABC27 |
| 5 | F | DNA-directed RNA polymerases I, II, and III 23 kDa polypeptide | polymer | 155 | 17931.8 | 1 | UniProt (P20435) Pfam (PF01192) In PDB | Saccharomyces cerevisiae (baker's yeast) | ABC23 |
| 6 | H | DNA-directed RNA polymerases I, II, and III 14.5 kDa polypeptide | polymer | 146 | 16525.4 | 1 | UniProt (P20436) Pfam (PF03870) In PDB | Saccharomyces cerevisiae (baker's yeast) | ABC14.4 |
| 7 | I | DNA-directed RNA polymerase II 14.2 kDa polypeptide | polymer | 122 | 14308.2 | 1 | UniProt (P27999) Pfam (PF02150) Pfam (PF01096) In PDB | Saccharomyces cerevisiae (baker's yeast) | B12.6 |
| 8 | J | DNA-directed RNA polymerases I, II, and III 8.3 kDa polypeptide | polymer | 70 | 8290.7 | 1 | UniProt (P22139) Pfam (PF01194) In PDB | Saccharomyces cerevisiae (baker's yeast) | ABC10-beta, ABC8 |
| 9 | K | DNA-directed RNA polymerase II 13.6 kDa polypeptide | polymer | 120 | 13633.5 | 1 | UniProt (P38902) Pfam (PF13656) In PDB | Saccharomyces cerevisiae (baker's yeast) | B13.6 |
| 10 | L | DNA-directed RNA polymerases I, II, and III 7.7 kDa polypeptide | polymer | 70 | 7730.0 | 1 | UniProt (P40422) Pfam (PF03604) In PDB | Saccharomyces cerevisiae (baker's yeast) | ABC10-alpha |
| 11 | M | TRANSCRIPTION FACTOR II B (TFIIB) | polymer | 86 | 7337.0 | 1 | Saccharomyces cerevisiae (baker's yeast) | ||
| 12 | A, B, C, I, J... | ZINC ION | non-polymer | 65.4 | 9 | Chemie (ZN) | |||
| 13 | A | MAGNESIUM ION | non-polymer | 24.3 | 1 | Chemie (MG) |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 11 |
| Total formula weight | 476963.0 | |
| Non-Polymers* | Number of molecules | 10 |
| Total formula weight | 613.0 | |
| All* | Total formula weight | 477576.0 |
