PDBe 1w1v

X-ray diffraction
1.85Å resolution

Crystal structure of S. marcescens chitinase B in complex with the cyclic dipeptide inhibitor cyclo-(L-Arg-L-Pro) at 1.85 A resolution


Function and Biology Details

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
Chitinase Chains: A, B
Molecule details ›
Chains: A, B
Length: 499 amino acids
Theoretical weight: 55.52 KDa
Source organism: Serratia marcescens
Expression system: Escherichia coli BL21
  • Canonical: Q54276 (Residues: 1-499; Coverage: 100%)
Gene name: chiB
Sequence domains: Glycosyl hydrolases family 18
Structure domains:

Ligands and Environments

3 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU
Spacegroup: P212121
Unit cell:
a: 55.744Å b: 103.256Å c: 185.689Å
α: 90° β: 90° γ: 90°
R R work R free
0.187 0.187 0.213
Expression system: Escherichia coli BL21