X-ray diffraction
1.95Å resolution

Crystal structure of Aspergillus fumigatus chitinase B1 in complex with C2-dicaffeine


Function and Biology Details

Reaction catalysed:
Random endo-hydrolysis of N-acetyl-beta-D-glucosaminide (1->4)-beta-linkages in chitin and chitodextrins
Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Endochitinase B1 Chains: A, B
Molecule details ›
Chains: A, B
Length: 433 amino acids
Theoretical weight: 47.66 KDa
Source organism: Aspergillus fumigatus
Expression system: Escherichia coli BL21(DE3)
  • Canonical: Q873X9 (Residues: 1-433; Coverage: 100%)
Gene name: chiB1
Sequence domains: Glycosyl hydrolases family 18
Structure domains:

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE BM14
Spacegroup: P41
Unit cell:
a: 116.782Å b: 116.782Å c: 99.42Å
α: 90° β: 90° γ: 90°
R R work R free
0.187 0.187 0.223
Expression system: Escherichia coli BL21(DE3)