1QS7
The 1.8 angstrom structure of calmodulin rs20 peptide complex
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, C | CALMODULIN | polymer | 145 | 16328.0 | 2 | GenBank (208092) Pfam (PF13499) UniProt (by SIFTS) (A0MMD0) In PDB | Escherichia coli | |
| 2 | B, D | RS20 | polymer | 21 | 2327.7 | 2 | UniProt (P19038) UniProt (by SIFTS) (P11799) In PDB | ||
| 3 | A, C | CALCIUM ION | non-polymer | 40.1 | 8 | Chemie (CA) | |||
| 4 | water | water | 18.0 | 264 | Chemie (HOH) |
Sequence modifications
B, D: 1 - 19 (UniProt: P19038)
| PDB | External Database | Details |
|---|---|---|
| Trf 4 | Trp 1734 | modified residue |
| Ser 20 | Met 1750 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 4 |
| Total formula weight | 37311.3 | |
| Non-Polymers* | Number of molecules | 8 |
| Total formula weight | 320.6 | |
| All* | Total formula weight | 37632.0 |
