3AXH
Crystal structure of isomaltase in complex with isomaltose
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A | Oligo-1,6-glucosidase IMA1 | polymer | 589 | 68619.3 | 1 | UniProt (P53051) Pfam (PF00128) In PDB | Saccharomyces cerevisiae (yeast) | Alpha-glucosidase, Flocculent-specific protein 2, Isomaltase 1 |
| 2 | B | alpha-D-glucopyranose-(1-6)-alpha-D-glucopyranose | branched | 342.3 | 1 | In PDB GlyTouCan (G69864PN) | |||
| 3 | A | CALCIUM ION | non-polymer | 40.1 | 1 | Chemie (CA) | |||
| 4 | water | water | 18.0 | 411 | Chemie (HOH) |
Sequence modifications
A: 1 - 589 (UniProt: P53051)
| PDB | External Database | Details |
|---|---|---|
| Ala 277 | Glu 277 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 1 |
| Total formula weight | 68619.3 | |
| Branched | Number of molecules | 1 |
| Total formula weight | 342.3 | |
| Non-Polymers* | Number of molecules | 1 |
| Total formula weight | 40.1 | |
| All* | Total formula weight | 69001.7 |
