› 1w91

X-ray diffraction
2.2Å resolution

crystal structure of 1,4-BETA-D-XYLAN XYLOHYDROLASE solve using anomalous signal from Seleniomethionine

Released:
DOI: 10.2210/pdb1w91/pdb
PDB 1w91 coloured by chain and viewed from the front.
PDB 1w91 coloured by chain and viewed from the side.
PDB 1w91 coloured by chain and viewed from the top.
Source organism: Geobacillus stearothermophilus
Entry authors: Jakoncic J, Shoham G, Stojanoff V

Function and Biology Details

Reaction catalysed: 
Hydrolysis of (1->4)-beta-D-xylans, to remove successive D-xylose residues from the non-reducing termini
Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned
Sequence domains:
Structure domains:

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Beta-xylosidase Chains: A, B, C, D, E, F, G, H
Molecule details ›
Chains: A, B, C, D, E, F, G, H
Length: 503 amino acids
Theoretical weight: 58.15 KDa
Source organism: Geobacillus stearothermophilus
Expression system: Not provided
UniProt:
  • Canonical: Q9ZFM2 (Residues: 1-448, 449-504; Coverage: 100%)
Gene name: xynB
Sequence domains: Glycosyl hydrolases family 39
Structure domains:

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE BM14
Spacegroup: P212121
Unit cell:
a: 93.698Å b: 166.024Å c: 313.063Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.177 0.174 0.242
Expression system: Not provided

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