1Z32
Structure-function relationships in human salivary alpha-amylase: Role of aromatic residues
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A (X) | Salivary alpha-amylase | polymer | 496 | 55923.3 | 1 | UniProt (P04745) Pfam (PF00128) Pfam (PF02806) UniProt (by SIFTS) (P0DUB6) | Homo sapiens (human) | 1,4-alpha-D-glucan glucanohydrolase |
| 2 | B (X) | alpha-D-glucopyranose | non-polymer | 180.2 | 1 | Chemie (GLC) | |||
| 3 | C (X) | 4-amino-4,6-dideoxy-alpha-D-glucopyranose | non-polymer | 163.2 | 1 | Chemie (AGL) | |||
| 4 | D (X) | 5-HYDROXYMETHYL-CHONDURITOL | non-polymer | 176.2 | 1 | Chemie (HMC) | |||
| 5 | E (X) | CALCIUM ION | non-polymer | 40.1 | 1 | Chemie (CA) | |||
| 6 | F (X) | CHLORIDE ION | non-polymer | 35.5 | 1 | Chemie (CL) | |||
| 7 | G (X) | water | water | 18.0 | 339 | Chemie (HOH) |
Sequence modifications
X: 1 - 496 (UniProt: P04745)
| PDB | External Database | Details |
|---|---|---|
| Met 151 | Tyr 166 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 1 |
| Total formula weight | 55923.3 | |
| Non-Polymers* | Number of molecules | 5 |
| Total formula weight | 595.0 | |
| All* | Total formula weight | 56518.3 |
