2NTI
Crystal structure of PCNA123 heterotrimer.
Entity
Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
1 | D, A, G | DNA polymerase sliding clamp B | polymer | 249 | 27521.7 | 3 | UniProt (P57766) Pfam (PF00705) In PDB | Sulfolobus solfataricus | Proliferating cell nuclear antigen homolog B, PCNA B |
2 | E, B, H | DNA polymerase sliding clamp C | polymer | 246 | 27592.3 | 3 | UniProt (Q97Z84) Pfam (PF00705) Pfam (PF02747) In PDB | Sulfolobus solfataricus | Proliferating cell nuclear antigen homolog C, PCNA C |
3 | F, C, I | DNA polymerase sliding clamp A | polymer | 244 | 27489.1 | 3 | UniProt (P57765) Pfam (PF00705) Pfam (PF02747) In PDB | Sulfolobus solfataricus | Proliferating cell nuclear antigen homolog A, PCNA A |
4 | F, H, A, I, D... | BROMIDE ION | non-polymer | 79.9 | 54 | Chemie (BR) | |||
5 | H | POTASSIUM ION | non-polymer | 39.1 | 1 | Chemie (K) | |||
6 | H | 2,5,8,11,14,17,20,23-OCTAOXAPENTACOSAN-25-OL | non-polymer | 384.5 | 1 | Chemie (7PG) | |||
7 | water | water | 18.0 | 1046 | Chemie (HOH) |
Sequence modifications
D, A, G: 1 - 249 (UniProt: P57766)
E, B, H: 2 - 246 (UniProt: Q97Z84)
PDB | External Database | Details |
---|---|---|
Val 2 | Phe 2 | engineered mutation |
PDB | External Database | Details |
---|---|---|
Met 1 | - | initiating methionine |
Sequence viewer
Contents of the asymmetric unit
Polymers | Number of chains | 9 |
Total formula weight | 247809.3 | |
Non-Polymers* | Number of molecules | 56 |
Total formula weight | 4738.4 | |
All* | Total formula weight | 252547.7 |