3aqu

X-ray diffraction
2.01Å resolution

Crystal structure of a class V chitinase from Arabidopsis thaliana

Released:

Function and Biology Details

Reactions catalysed:
Random endo-hydrolysis of N-acetyl-beta-D-glucosaminide (1->4)-beta-linkages in chitin and chitodextrins
Hydrolysis of N,N'-diacetylchitobiose from the non-reducing end of chitin and chitodextrins.
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-131351 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Class V chitinase Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 356 amino acids
Theoretical weight: 38.67 KDa
Source organism: Arabidopsis thaliana
Expression system: Escherichia coli
UniProt:
  • Canonical: O81862 (Residues: 25-379; Coverage: 100%)
Gene names: At4g19810, ChiC, T16H5.170
Sequence domains: Glycosyl hydrolases family 18
Structure domains:

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: PHOTON FACTORY BEAMLINE BL-17A
Spacegroup: P1
Unit cell:
a: 74.574Å b: 75.079Å c: 97.347Å
α: 73.63° β: 73.34° γ: 68.47°
R-values:
R R work R free
0.198 0.196 0.227
Expression system: Escherichia coli