8QY1
Xylanase from Bacillus circulans mutant E78Q/Y69A bound to xylohexaose
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) | Endo-1,4-beta-xylanase | polymer | 185 | 20315.9 | 2 | UniProt (P09850) Pfam (PF00457) | Niallia circulans subsp. circulans | |
| 2 | C (E) | beta-D-xylopyranose-(1-4)-beta-D-xylopyranose | branched | 282.2 | 1 | In PDB GlyTouCan (G87728WL) | |||
| 3 | D, E (F, G) | beta-D-xylopyranose-(1-4)-beta-D-xylopyranose-(1-4)-beta-D-xylopyranose-(1-4)-beta-D-xylopyranose | branched | 546.5 | 2 | In PDB GlyTouCan (G60650FG) | |||
| 4 | F, H (A, B) | ZINC ION | non-polymer | 65.4 | 2 | Chemie (ZN) | |||
| 5 | G, I (A, B) | 2-[BIS-(2-HYDROXY-ETHYL)-AMINO]-2-HYDROXYMETHYL-PROPANE-1,3-DIOL | non-polymer | 209.2 | 2 | Chemie (BTB) | |||
| 6 | J, K (B) | ACETATE ION | non-polymer | 59.0 | 2 | Chemie (ACT) | |||
| 7 | L, M (A, B) | water | water | 18.0 | 164 | Chemie (HOH) |
Sequence modifications
A, B: 1 - 185 (UniProt: P09850)
| PDB | External Database | Details |
|---|---|---|
| Ala 69 | Tyr 97 | engineered mutation |
| Gln 78 | Glu 106 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 40631.8 | |
| Branched | Number of molecules | 3 |
| Total formula weight | 1375.2 | |
| Non-Polymers* | Number of molecules | 6 |
| Total formula weight | 667.4 | |
| All* | Total formula weight | 42674.4 |
