1NS2
Crystal structure of galactose mutarotase from Lactococcus lactis mutant E304A complexed with galactose
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) | GALACTOSE MUTAROTASE | polymer | 347 | 38564.9 | 2 | UniProt (Q9ZB17) Pfam (PF01263) | Lactococcus lactis | ALDOSE 1-EPIMERASE |
| 2 | C, E (A, B) | beta-D-galactopyranose | non-polymer | 180.2 | 2 | Chemie (GAL) | |||
| 3 | D (A) | NICKEL (II) ION | non-polymer | 58.7 | 1 | Chemie (NI) | |||
| 4 | F, G (A, B) | water | water | 18.0 | 402 | Chemie (HOH) |
Sequence modifications
A, B: 1 - 339 (UniProt: Q9ZB17)
| PDB | External Database | Details |
|---|---|---|
| Ser 2 | Glu 2 | cloning artifact |
| Ala 304 | Glu 304 | engineered mutation |
| Leu 340 | - | expression tag |
| Glu 341 | - | expression tag |
| His 342 | - | expression tag |
| His 343 | - | expression tag |
| His 344 | - | expression tag |
| His 345 | - | expression tag |
| His 346 | - | expression tag |
| His 347 | - | expression tag |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 77129.8 | |
| Non-Polymers* | Number of molecules | 3 |
| Total formula weight | 419.0 | |
| All* | Total formula weight | 77548.8 |
