3EQF
X-ray structure of the human mitogen-activated protein kinase kinase 1 (MEK1) in a binary complex with K252A and MG2P
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A | Dual specificity mitogen-activated protein kinase kinase 1 | polymer | 360 | 40113.2 | 1 | UniProt (Q02750) Pfam (PF00069) In PDB | Homo sapiens (Human) | MAP kinase kinase 1, MAPKK 1, ERK activator kinase 1, MAPK/ERK kinase 1, MEK1 |
| 2 | A | K-252A | non-polymer | 467.5 | 1 | Chemie (KSA) | |||
| 3 | A | MAGNESIUM ION | non-polymer | 24.3 | 1 | Chemie (MG) | |||
| 4 | A | CALCIUM ION | non-polymer | 40.1 | 1 | Chemie (CA) | |||
| 5 | A | SODIUM ION | non-polymer | 23.0 | 1 | Chemie (NA) | |||
| 6 | water | water | 18.0 | 8 | Chemie (HOH) |
Sequence modifications
A: 35 - 393 (UniProt: Q02750)
| PDB | External Database | Details |
|---|---|---|
| Gly 34 | - | expression tag |
| Asn 298 | Ser 298 | engineered mutation |
| Lys 299 | Ser 299 | engineered mutation |
| Phe 300 | Tyr 300 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 1 |
| Total formula weight | 40113.2 | |
| Non-Polymers* | Number of molecules | 4 |
| Total formula weight | 554.8 | |
| All* | Total formula weight | 40668.1 |
