X-ray diffraction
1.45Å resolution

Crystal structure of the extracellular xylanase from Geobacillus stearothermophilus T-6 (XT6): The WT enzyme (monoclinic form) at 1.45A resolution

Primary publication:
Mapping glycoside hydrolase substrate subsites by isothermal titration calorimetry.
Proc. Natl. Acad. Sci. U.S.A. 101 11275-80 (2004)
PMID: 15277671

Function and Biology Details

Reaction catalysed:
Endohydrolysis of (1->4)-beta-D-xylosidic linkages in xylans
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Endo-1,4-beta-xylanase Chain: A
Molecule details ›
Chain: A
Length: 379 amino acids
Theoretical weight: 43.87 KDa
Source organism: Geobacillus stearothermophilus
Expression system: Escherichia coli BL21
  • Canonical: P40943 (Residues: 29-407; Coverage: 100%)
Sequence domains: Glycosyl hydrolase family 10
Structure domains: Glycosidases

Ligands and Environments

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X8C
Spacegroup: C2
Unit cell:
a: 121.51Å b: 61.71Å c: 89.09Å
α: 90° β: 119.07° γ: 90°
R R work R free
0.126 not available 0.181
Expression system: Escherichia coli BL21