6ZJR
Cold-adapted beta-D-galactosidase from Arthrobacter sp. 32cB mutant E517Q in complex with lactulose
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A (A) | Beta-galactosidase | polymer | 1012 | 110020.7 | 1 | UniProt (A0A023UGN9) | Arthrobacter sp. 32cB | |
| 2 | B, C (B, C) | beta-D-galactopyranose-(1-4)-beta-D-fructofuranose | branched | 342.3 | 2 | In PDB BIRD (PRD_900038) GlyTouCan (G57229GY) | lactulose | ||
| 3 | D, E (A) | SODIUM ION | non-polymer | 23.0 | 2 | Chemie (NA) | |||
| 4 | F (A) | MALONATE ION | non-polymer | 102.0 | 1 | Chemie (MLI) | |||
| 5 | G, H, I, J, K... (A) | ACETATE ION | non-polymer | 59.0 | 6 | Chemie (ACT) | |||
| 6 | M (A) | water | water | 18.0 | 528 | Chemie (HOH) |
Sequence modifications
A: 1 - 1010 (UniProt: A0A023UGN9)
| PDB | External Database | Details |
|---|---|---|
| Glu -1 | - | expression tag |
| Gln 0 | - | expression tag |
| Gln 517 | Glu 517 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 1 |
| Total formula weight | 110020.7 | |
| Branched | Number of molecules | 2 |
| Total formula weight | 684.6 | |
| Non-Polymers* | Number of molecules | 9 |
| Total formula weight | 502.3 | |
| All* | Total formula weight | 111207.6 |
