4S3Q
Amylomaltase MalQ from Escherichia coli in complex with maltose
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, B, C | 4-alpha-glucanotransferase | polymer | 696 | 78982.7 | 3 | UniProt (P15977) Pfam (PF21226) Pfam (PF02446) In PDB | Escherichia coli K-12 | Amylomaltase, Disproportionating enzyme, D-enzyme |
| 2 | D | alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose | branched | 342.3 | 1 | In PDB BIRD (PRD_900001) GlyTouCan (G07411ON) | alpha-maltose | ||
| 3 | A, B, C | 1,2-ETHANEDIOL | non-polymer | 62.1 | 5 | Chemie (EDO) | |||
| 4 | A, B, C | IODIDE ION | non-polymer | 126.9 | 8 | Chemie (IOD) | |||
| 5 | water | water | 18.0 | 467 | Chemie (HOH) |
Sequence modifications
A, B, C: 1 - 688 (UniProt: P15977)
| PDB | External Database | Details |
|---|---|---|
| Ser 689 | - | expression tag |
| Ala 690 | - | expression tag |
| His 691 | - | expression tag |
| His 692 | - | expression tag |
| His 693 | - | expression tag |
| His 694 | - | expression tag |
| His 695 | - | expression tag |
| His 696 | - | expression tag |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 3 |
| Total formula weight | 236948.0 | |
| Branched | Number of molecules | 1 |
| Total formula weight | 342.3 | |
| Non-Polymers* | Number of molecules | 13 |
| Total formula weight | 1325.6 | |
| All* | Total formula weight | 238615.9 |
