1sqj

X-ray diffraction
2.2Å resolution

Crystal Structure Analysis of Oligoxyloglucan reducing-end-specific cellobiohydrolase (OXG-RCBH)

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:
homo dimer (preferred)
PDBe Complex ID:
PDB-CPX-184981 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
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

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: PHOTON FACTORY BEAMLINE BL-18B
Spacegroup: P212121
Unit cell:
a: 61.077Å b: 146.051Å c: 212.711Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.219 0.217 0.251
Expression system: Escherichia coli