2ebs

X-ray diffraction
2.4Å resolution

Crystal Structure Anaalysis of Oligoxyloglucan reducing-end-specific cellobiohydrolase (OXG-RCBH) D465N Mutant Complexed with a Xyloglucan Heptasaccharide

Released:

Function and Biology Details

Reaction catalysed:
Hydrolysis of cellobiose from the reducing end of xyloglucans consisting of a beta-(1->4)-linked glucan carrying alpha-D-xylosyl groups on O-6 of the glucose residues. To be a substrate, the first residue must be unsubstituted, the second residue may bear a xylosyl group, whether further glycosylated or not, and the third residue, which becomes the new terminus by the action of the enzyme, is preferably xylosylated, but this xylose residue must not be further substituted.
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
monomeric (preferred)
PDBe Complex ID:
PDB-CPX-184980 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecules (2 distinct):
Oligoxyloglucan reducing end-specific cellobiohydrolase Chains: A, B
Molecule details ›
Chains: A, B
Length: 789 amino acids
Theoretical weight: 84.97 KDa
Source organism: Geotrichum sp. M128
Expression system: Escherichia coli
UniProt:
  • Canonical: Q8J0D2 (Residues: 24-812; Coverage: 100%)
Sequence domains: BNR-Asp box repeat
Structure domains: YVTN repeat-like/Quinoprotein amine dehydrogenase

Ligands and Environments

Carbohydrate polymer : NEW Components: BGC, XYS
No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SPRING-8 BEAMLINE BL44B2
Spacegroup: P212121
Unit cell:
a: 60.97Å b: 147.515Å c: 212.23Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.162 0.158 0.219
Expression system: Escherichia coli