4XOU
Crystal structure of the SR Ca2+-ATPase in the Ca2-E1-MgAMPPCP form determined by serial femtosecond crystallography using an X-ray free-electron laser.
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A (A) | Sarcoplasmic/endoplasmic reticulum calcium ATPase 1 | polymer | 994 | 109602.6 | 1 | UniProt (P04191) Pfam (PF00690) Pfam (PF00122) Pfam (PF13246) Pfam (PF00702) Pfam (PF00689) | Oryctolagus cuniculus (Rabbit) | SR Ca(2+)-ATPase 1,Calcium pump 1,Calcium-transporting ATPase sarcoplasmic reticulum type,fast twitch skeletal muscle isoform,Endoplasmic reticulum class 1/2 Ca(2+) ATPase |
| 2 | B, C, F (A) | CALCIUM ION | non-polymer | 40.1 | 3 | Chemie (CA) | |||
| 3 | D (A) | POTASSIUM ION | non-polymer | 39.1 | 1 | Chemie (K) | |||
| 4 | E (A) | PHOSPHOMETHYLPHOSPHONIC ACID ADENYLATE ESTER | non-polymer | 505.2 | 1 | Chemie (ACP) |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 1 |
| Total formula weight | 109602.6 | |
| Non-Polymers* | Number of molecules | 5 |
| Total formula weight | 664.5 | |
| All* | Total formula weight | 110267.1 |
