2PWE
Crystal structure of the MutB E254Q mutant in complex with the 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, B (A, B) | Sucrose isomerase | polymer | 556 | 63808.7 | 2 | UniProt (Q2PS28) Pfam (PF00128) Pfam (PF11941) | Pseudomonas mesoacidophila | |
| 2 | C, D (C, D) | beta-D-fructofuranose-(2-1)-alpha-D-glucopyranose | branched | 342.3 | 2 | In PDB BIRD (PRD_900003) | sucrose | ||
| 3 | E, F (A, B) | CALCIUM ION | non-polymer | 40.1 | 2 | Chemie (CA) | |||
| 4 | G, H (A, B) | water | water | 18.0 | 1501 | Chemie (HOH) |
Sequence modifications
A, B: 2 - 557 (UniProt: Q2PS28)
| PDB | External Database | Details |
|---|---|---|
| Gln 254 | Glu 281 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 127617.4 | |
| Branched | Number of molecules | 2 |
| Total formula weight | 684.6 | |
| Non-Polymers* | Number of molecules | 2 |
| Total formula weight | 80.2 | |
| All* | Total formula weight | 128382.1 |
