4PUE
Extracellulr Xylanase from Geobacillus stearothermophilus: E159Q mutant, with xylotetraose in active site
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A | Endo-1,4-beta-xylanase | polymer | 371 | 42991.7 | 1 | UniProt (P40943) Pfam (PF00331) In PDB | Geobacillus stearothermophilus | Xylanase, 1,4-beta-D-xylan xylanohydrolase |
| 2 | B | 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) | |||
| 3 | A | ZINC ION | non-polymer | 65.4 | 5 | Chemie (ZN) | |||
| 4 | A | CHLORIDE ION | non-polymer | 35.5 | 1 | Chemie (CL) | |||
| 5 | water | water | 18.0 | 251 | Chemie (HOH) |
Sequence modifications
A: 9 - 379 (UniProt: P40943)
| PDB | External Database | Details |
|---|---|---|
| Gln 159 | Glu 187 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 1 |
| Total formula weight | 42991.7 | |
| Branched | Number of molecules | 1 |
| Total formula weight | 546.5 | |
| Non-Polymers* | Number of molecules | 6 |
| Total formula weight | 362.5 | |
| All* | Total formula weight | 43900.7 |
