1JDD
MUTANT (E219Q) MALTOTETRAOSE-FORMING EXO-AMYLASE COCRYSTALLIZED WITH MALTOTETRAOSE (CRYSTAL TYPE 2)
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A (A) | 1,4-ALPHA MALTOTETRAHYDROLASE | polymer | 429 | 47408.6 | 1 | UniProt (P13507) Pfam (PF00128) Pfam (PF09081) | Pseudomonas stutzeri | MALTOTETRAOSE-FORMING EXO-AMYLASE |
| 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 (A) | CALCIUM ION | non-polymer | 40.1 | 2 | Chemie (CA) | |||
| 4 | E (A) | water | water | 18.0 | 152 | Chemie (HOH) |
Sequence modifications
A: 1 - 429 (UniProt: P13507)
| PDB | External Database | Details |
|---|---|---|
| Gln 219 | Glu 240 | engineered mutation |
| Asp 334 | Ser 355 | conflict |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 1 |
| Total formula weight | 47408.6 | |
| Branched | Number of molecules | 1 |
| Total formula weight | 666.6 | |
| Non-Polymers* | Number of molecules | 2 |
| Total formula weight | 80.2 | |
| All* | Total formula weight | 48155.4 |
