Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, B, C, D, E... (A, B, C, D, E...) | GTPase KRas | polymer | 166 | 18884.3 | 6 | UniProt (P01116) Pfam (PF00071) | Homo sapiens (human) | K-Ras 2,Ki-Ras,c-K-ras,c-Ki-ras |
| 2 | G, H, I, J, K... (I, J, K, L, M...) | UM0152533 | polymer | 11 | 1550.8 | 6 | synthetic construct | ||
| 3 | EA, M, P, U, V... (F, A, B, C, D...) | GUANOSINE-5'-DIPHOSPHATE | non-polymer | 443.2 | 6 | Chemie (GDP) | |||
| 4 | AA, BA, CA, DA, N... (E, F, A, B, C...) | MAGNESIUM ION | non-polymer | 24.3 | 13 | Chemie (MG) PubChem (888) | |||
| 5 | FA, GA, HA, IA, JA... (A, B, C, D, E...) | water | water | 18.0 | 657 | Chemie (HOH) |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 12 |
| Total formula weight | 122610.8 | |
| Non-Polymers* | Number of molecules | 19 |
| Total formula weight | 2975.2 | |
| All* | Total formula weight | 125585.9 |






