1J18
Crystal Structure of a Beta-Amylase from Bacillus cereus var. mycoides Cocrystallized with Maltose
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-amylase | polymer | 516 | 58358.5 | 1 | UniProt (P36924) Pfam (PF01373) Pfam (PF00686) | Bacillus cereus | 1,4-alpha-D-glucan maltohydrolase |
| 2 | B (B) | alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose | branched | 666.6 | 1 | In PDB BIRD (PRD_900010) GlyTouCan (G87171PZ) | alpha-maltotetraose | ||
| 3 | C, D (C, D) | alpha-D-glucopyranose-(1-4)-beta-D-glucopyranose | branched | 342.3 | 2 | In PDB BIRD (PRD_900018) GlyTouCan (G66120GK) | beta-maltose | ||
| 4 | E (A) | CALCIUM ION | non-polymer | 40.1 | 1 | Chemie (CA) | |||
| 5 | F (A) | SULFATE ION | non-polymer | 96.1 | 1 | Chemie (SO4) | |||
| 6 | G (A) | ACETIC ACID | non-polymer | 60.1 | 1 | Chemie (ACY) | |||
| 7 | H (A) | water | water | 18.0 | 395 | Chemie (HOH) |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 1 |
| Total formula weight | 58358.5 | |
| Branched | Number of molecules | 3 |
| Total formula weight | 1351.2 | |
| Non-Polymers* | Number of molecules | 3 |
| Total formula weight | 196.2 | |
| All* | Total formula weight | 59905.9 |
