2HII
heterotrimeric PCNA sliding clamp
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords | 
| 1 | A, D (A, X) | PCNA1 (SSO0397) | polymer | 257 | 29062.9 | 2 | UniProt (P57766) Pfam (PF00705) | Sulfolobus solfataricus | DNA polymerase sliding clamp B, Proliferating cell nuclear antigen homolog B, PCNA B | 
| 2 | B, E (B, Y) | PCNA2 (SSO1047) | polymer | 245 | 27648.7 | 2 | UniProt (Q97Z84) Pfam (PF00705) Pfam (PF02747) | Sulfolobus solfataricus | DNA polymerase sliding clamp C, Proliferating cell nuclear antigen homolog C, PCNA C | 
| 3 | C, F (C, Z) | PCNA3 (SSO0405) | polymer | 252 | 28747.8 | 2 | UniProt (P57765) Pfam (PF00705) Pfam (PF02747) | Sulfolobus solfataricus | DNA polymerase sliding clamp A, Proliferating cell nuclear antigen homolog A, PCNA A | 
Sequence modifications
A, X: 1 - 249 (UniProt: P57766)
B, Y: 2 - 246 (UniProt: Q97Z84)
C, Z: 1 - 244 (UniProt: P57765)
| PDB | External Database | Details | 
|---|---|---|
| Mse 1 | Met 1 | modified residue | 
| Mse 47 | Met 47 | modified residue | 
| Mse 50 | Met 50 | modified residue | 
| Mse 157 | Met 157 | modified residue | 
| Mse 182 | Met 182 | modified residue | 
| Mse 204 | Met 204 | modified residue | 
| Mse 220 | Met 220 | modified residue | 
| Mse 229 | Met 229 | modified residue | 
| Mse 241 | Met 241 | modified residue | 
| Leu 250 | - | cloning artifact | 
| Glu 251 | - | cloning artifact | 
| His 252 | - | expression tag | 
| His 253 | - | expression tag | 
| His 254 | - | expression tag | 
| His 255 | - | expression tag | 
| His 256 | - | expression tag | 
| His 257 | - | expression tag | 
| PDB | External Database | Details | 
|---|---|---|
| Mse 2 | Met 1 | modified residue | 
| Mse 199 | Met 198 | modified residue | 
| Mse 208 | Met 207 | modified residue | 
| Mse 215 | Met 214 | modified residue | 
| PDB | External Database | Details | 
|---|---|---|
| Mse 1 | Met 1 | modified residue | 
| Mse 55 | Met 55 | modified residue | 
| Mse 75 | Met 75 | modified residue | 
| Mse 230 | Met 230 | modified residue | 
| Leu 245 | - | cloning artifact | 
| Glu 246 | - | cloning artifact | 
| His 247 | - | expression tag | 
| His 248 | - | expression tag | 
| His 249 | - | expression tag | 
| His 250 | - | expression tag | 
| His 251 | - | expression tag | 
| His 252 | - | expression tag | 
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 6 | 
| Total formula weight | 170918.9 | |
| All* | Total formula weight | 170918.9 | 











