2QZ2
Crystal structure of a glycoside hydrolase family 11 xylanase from Aspergillus niger in complex with xylopentaose
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A (A) | Endo-1,4-beta-xylanase I | polymer | 184 | 19803.9 | 1 | UniProt (P55329) Pfam (PF00457) | Aspergillus niger | Xylanase I, 1,4- beta-D-xylan xylanohydrolase I |
| 2 | B (B) | beta-D-xylopyranose-(1-4)-beta-D-xylopyranose | branched | 282.2 | 1 | In PDB BIRD (PRD_900116) GlyTouCan (G87728WL) | 4beta-beta-xylobiose | ||
| 3 | C (C) | beta-D-xylopyranose-(1-4)-beta-D-xylopyranose-(1-4)-beta-D-xylopyranose-(1-4)-beta-D-xylopyranose | branched | 546.5 | 1 | In PDB GlyTouCan (G60650FG) | |||
| 4 | D (A) | SODIUM ION | non-polymer | 23.0 | 1 | Chemie (NA) | |||
| 5 | E (A) | water | water | 18.0 | 37 | Chemie (HOH) |
Sequence modifications
A: 1 - 184 (UniProt: P55329)
| PDB | External Database | Details |
|---|---|---|
| Asn 50 | Lys 77 | SEE REMARK 999 |
| Val 167 | Met 194 | SEE REMARK 999 |
| Ala 170 | Glu 197 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 1 |
| Total formula weight | 19803.9 | |
| Branched | Number of molecules | 2 |
| Total formula weight | 828.7 | |
| Non-Polymers* | Number of molecules | 1 |
| Total formula weight | 23.0 | |
| All* | Total formula weight | 20655.6 |
