› 1h0i

X-ray diffraction
2Å resolution

Complex of a chitinase with the natural product cyclopentapeptide argifin from Gliocladium

Released:
DOI: 10.2210/pdb1h0i/pdb
PDB entry 1h0i coloured by chain, front view.
PDB entry 1h0i coloured by chain, side view.
PDB entry 1h0i coloured by chain, top view.
Source organisms:
Primary publication:
High-resolution structures of a chitinase complexed with natural product cyclopentapeptide inhibitors: mimicry of carbohydrate substrate.
Houston DR, Shiomi K, Arai N, Omura S, Peter MG, Turberg A, Synstad B, Eijsink VG, van Aalten DM
Proc Natl Acad Sci U S A 99 9127-32 (2002)
PMID: 12093900

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:
Biological process:
Cellular component:
Sequence domains:
Structure domains:

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-145921 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Chitinase B Chains: A, B
Molecule details ›
Chains: A, B
Length: 499 amino acids
Theoretical weight: 55.55 KDa
Source organism: Serratia marcescens
Expression system: Escherichia coli
UniProt:
  • Canonical: P11797 (Residues: 1-499; Coverage: 100%)
Gene name: chiB
Sequence domains: Glycosyl hydrolases family 18
Structure domains:
ARGIFIN Chains: C, D
Molecule details ›
Chains: C, D
Length: 5 amino acids
Theoretical weight: 694 Da
Source organism: Gliocladium
Expression system: Not provided

Ligands and Environments

2 bound ligands:
Ligand GOL 7 x GOL
Ligand SO4 10 x SO4
4 modified residues:
Ligand VR0 2 x VR0
Ligand MEA 2 x MEA
Ligand IAS 4 x IAS
Ligand DAL 2 x DAL

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID14-4
Spacegroup: P212121
Unit cell:
a: 55.767Å b: 103.908Å c: 186.605Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.192 0.192 0.232
Expression systems:
  • Escherichia coli
  • Not provided

Quick links

Citations

7 review citations

Fungal chitinases: diversity, mechanistic properties and biotechnological potential.
Hartl et al. (2012)
6 more

2 mentions without citation

High-resolution structures of a chitinase complexed with natural product cyclopentapeptide inhibitors: mimicry of carbohydrate substrate.
Houston et al. (2002)
1 more