6SE9
Cold-adapted beta-D-galactosidase from Arthrobacter sp. 32cB mutant E441Q in complex with lactose bound in shallow mode
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A | Beta-galactosidase | polymer | 1010 | 109763.5 | 1 | UniProt (A0A023UGN9) Pfam (PF02837) Pfam (PF02836) Pfam (PF16353) Pfam (PF02929) In PDB | Arthrobacter sp. 32cB | |
| 2 | B | beta-D-galactopyranose-(1-4)-beta-D-glucopyranose | branched | 342.3 | 1 | In PDB BIRD (PRD_900004) GlyTouCan (G84224TW) | beta-lactose | ||
| 3 | A | SODIUM ION | non-polymer | 23.0 | 2 | Chemie (NA) | |||
| 4 | A | ACETATE ION | non-polymer | 59.0 | 2 | Chemie (ACT) | |||
| 5 | A | MALONATE ION | non-polymer | 102.0 | 1 | Chemie (MLI) | |||
| 6 | A | FORMIC ACID | non-polymer | 46.0 | 1 | Chemie (FMT) | |||
| 7 | A | beta-D-fructofuranose | non-polymer | 180.2 | 2 | Chemie (FRU) | |||
| 8 | A | beta-D-galactopyranose | non-polymer | 180.2 | 1 | Chemie (GAL) | |||
| 9 | water | water | 18.0 | 400 | Chemie (HOH) |
Sequence modifications
A: 1 - 1010 (UniProt: A0A023UGN9)
| PDB | External Database | Details |
|---|---|---|
| Gln 441 | Glu 441 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 1 |
| Total formula weight | 109763.5 | |
| Branched | Number of molecules | 1 |
| Total formula weight | 342.3 | |
| Non-Polymers* | Number of molecules | 9 |
| Total formula weight | 852.6 | |
| All* | Total formula weight | 110958.4 |
