4LPK
Crystal Structure of K-Ras WT, GDP-bound
Entity
Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
1 | A, B | GTPase KRas | polymer | 170 | 19328.8 | 2 | UniProt (P01116) Pfam (PF00071) In PDB | Homo sapiens (human) | K-Ras 2, Ki-Ras, c-K-ras, c-Ki-ras, GTPase KRas, N-terminally processed |
2 | A, B | GUANOSINE-5'-DIPHOSPHATE | non-polymer | 443.2 | 2 | Chemie (GDP) | |||
3 | A, B | CALCIUM ION | non-polymer | 40.1 | 2 | Chemie (CA) | |||
4 | A, B | SODIUM ION | non-polymer | 23.0 | 2 | Chemie (NA) | |||
5 | water | water | 18.0 | 389 | Chemie (HOH) |
Sequence modifications
A, B: 1 - 169 (UniProt: P01116)
PDB | External Database | Details |
---|---|---|
Gly 0 | - | expression tag |
Gly 151 | Arg 151 | SEE REMARK 999 |
Asp 153 | Glu 153 | SEE REMARK 999 |
Lys 165 | Gln 165 | SEE REMARK 999 |
His 166 | Tyr 166 | SEE REMARK 999 |
Lys 167 | Arg 167 | SEE REMARK 999 |
Glu 168 | Leu 168 | SEE REMARK 999 |
Sequence viewer
Contents of the asymmetric unit
Polymers | Number of chains | 2 |
Total formula weight | 38657.6 | |
Non-Polymers* | Number of molecules | 6 |
Total formula weight | 1012.5 | |
All* | Total formula weight | 39670.2 |