1XV8
Crystal Structure of Human Salivary Alpha-Amylase Dimer
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, B (A, B) | Alpha-amylase | polymer | 496 | 55955.3 | 2 | UniProt (P04745) Pfam (PF00128) Pfam (PF02806) UniProt (by SIFTS) (P0DUB6) | Homo sapiens (human) | 1,4-alpha-D-glucan glucanohydrolase |
| 2 | C, E (A, B) | CALCIUM ION | non-polymer | 40.1 | 2 | Chemie (CA) | |||
| 3 | D, F (A, B) | CHLORIDE ION | non-polymer | 35.5 | 2 | Chemie (CL) | |||
| 4 | G, H (A, B) | water | water | 18.0 | 130 | Chemie (HOH) |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 111910.5 | |
| Non-Polymers* | Number of molecules | 4 |
| Total formula weight | 151.1 | |
| All* | Total formula weight | 112061.6 |
