1KBK
Mechanistic Analyses of Catalysis in Human Pancreatic Alpha-Amylase: Detailed Kinetic and Structural Studies of Mutants of Three Conserved Carboxylic Acids
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A (A) | ALPHA-AMYLASE, PANCREATIC | polymer | 496 | 55887.3 | 1 | UniProt (P04746) Pfam (PF00128) Pfam (PF02806) | Homo sapiens (human) | 1,4-ALPHA-D-GLUCAN GLUCANOHYDROLASE, PANCREATIC ALPHA-AMYLASE, PA |
| 2 | B (A) | 2-acetamido-2-deoxy-beta-D-glucopyranose | non-polymer | 221.2 | 1 | Chemie (NAG) | |||
| 3 | C (A) | CALCIUM ION | non-polymer | 40.1 | 1 | Chemie (CA) | |||
| 4 | D (A) | CHLORIDE ION | non-polymer | 35.5 | 1 | Chemie (CL) | |||
| 5 | E (A) | water | water | 18.0 | 138 | Chemie (HOH) |
Sequence modifications
A: 1 - 496 (UniProt: P04746)
| PDB | External Database | Details |
|---|---|---|
| Ala 197 | Asp 212 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 1 |
| Total formula weight | 55887.3 | |
| Non-Polymers* | Number of molecules | 3 |
| Total formula weight | 296.7 | |
| All* | Total formula weight | 56184.0 |
