Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords | 
| 1 | A (A)  | RNA-directed RNA polymerase | polymer | 941 | 107983.3 | 1 | UniProt (P0DTD1) Pfam (PF06478) Pfam (PF00680)  | Severe acute respiratory syndrome coronavirus 2 (2019-nCoV) | NSP12 | 
| 2 | B, D (B, D)  | Non-structural protein 8 | polymer | 207 | 23105.4 | 2 | UniProt (P0DTD1) Pfam (PF08717)  | Severe acute respiratory syndrome coronavirus 2 (2019-nCoV) | NSP8 | 
| 3 | C (C)  | Non-structural protein 7 | polymer | 92 | 10451.2 | 1 | UniProt (P0DTD1) Pfam (PF08716)  | Severe acute respiratory syndrome coronavirus 2 (2019-nCoV) | NSP7 | 
| 4 | E, F (E, F)  | RNA (5'-R(*GP*UP*GP*GP*GP*CP*CP*CP*A)-3') | polymer | 9 | 2886.8 | 2 | Severe acute respiratory syndrome coronavirus 2 | ||
| 5 | G, H (A)  | ZINC ION | non-polymer | 65.4 | 2 | Chemie (ZN) | |||
| 6 | I (A)  | MAGNESIUM ION | non-polymer | 24.3 | 1 | Chemie (MG) | 
Sequence modifications
A: 1 - 932 (UniProt: P0DTD1)
B, D: 1 - 198 (UniProt: P0DTD1)
C: 1 - 83 (UniProt: P0DTD1)
| PDB | External Database | Details | 
|---|---|---|
| Met 0 | - | initiating methionine | 
| Leu 933 | - | expression tag | 
| Glu 934 | - | expression tag | 
| His 935 | - | expression tag | 
| His 936 | - | expression tag | 
| His 937 | - | expression tag | 
| His 938 | - | expression tag | 
| His 939 | - | expression tag | 
| His 940 | - | expression tag | 
| PDB | External Database | Details | 
|---|---|---|
| Met 0 | - | initiating methionine | 
| Leu 199 | - | expression tag | 
| Glu 200 | - | expression tag | 
| His 201 | - | expression tag | 
| His 202 | - | expression tag | 
| His 203 | - | expression tag | 
| His 204 | - | expression tag | 
| His 205 | - | expression tag | 
| His 206 | - | expression tag | 
| PDB | External Database | Details | 
|---|---|---|
| Met 0 | - | initiating methionine | 
| Leu 84 | - | expression tag | 
| Glu 85 | - | expression tag | 
| His 86 | - | expression tag | 
| His 87 | - | expression tag | 
| His 88 | - | expression tag | 
| His 89 | - | expression tag | 
| His 90 | - | expression tag | 
| His 91 | - | expression tag | 
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 6 | 
| Total formula weight | 170418.8 | |
| Non-Polymers* | Number of molecules | 3 | 
| Total formula weight | 155.1 | |
| All* | Total formula weight | 170574.0 | 






