4HPH
The crystal structure of isomaltulose synthase mutant E295Q from Erwinia rhapontici NX5 in complex with its natural substrate sucrose
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A | Sucrose isomerase | polymer | 559 | 65830.2 | 1 | UniProt (D9MPF2) Pfam (PF00128) Pfam (PF16657) In PDB | Erwinia rhapontici | isomaltulose synthase |
| 2 | B | beta-D-fructofuranose-(2-1)-alpha-D-glucopyranose | branched | 342.3 | 1 | In PDB BIRD (PRD_900003) | sucrose | ||
| 3 | A | CALCIUM ION | non-polymer | 40.1 | 1 | Chemie (CA) | |||
| 4 | A | GLYCEROL | non-polymer | 92.1 | 1 | Chemie (GOL) | |||
| 5 | water | water | 18.0 | 556 | Chemie (HOH) |
Sequence modifications
A: 42 - 600 (UniProt: D9MPF2)
| PDB | External Database | Details |
|---|---|---|
| Gln 295 | Glu 295 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 1 |
| Total formula weight | 65830.2 | |
| Branched | Number of molecules | 1 |
| Total formula weight | 342.3 | |
| Non-Polymers* | Number of molecules | 2 |
| Total formula weight | 132.2 | |
| All* | Total formula weight | 66304.7 |
