2vn5

X-ray diffraction
1.9Å resolution

The Clostridium cellulolyticum dockerin displays a dual binding mode for its cohesin partner

Released:

Function and Biology Details

Reaction catalysed:
Endohydrolysis of (1->4)-beta-D-glucosidic linkages in cellulose, lichenin and cereal beta-D-glucans
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-148210 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
CBM3 domain-containing protein Chains: A, C
Molecule details ›
Chains: A, C
Length: 151 amino acids
Theoretical weight: 15.56 KDa
Source organism: Ruminiclostridium cellulolyticum
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q45996 (Residues: 277-427; Coverage: 10%)
Gene name: cipC
Sequence domains: Cohesin domain
Structure domains: Immunoglobulin-like
Endoglucanase A Chains: B, D
Molecule details ›
Chains: B, D
Length: 66 amino acids
Theoretical weight: 7.29 KDa
Source organism: Ruminiclostridium cellulolyticum
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P17901 (Residues: 410-475; Coverage: 15%)
Gene names: Ccel_1099, celCCA
Sequence domains: Dockerin type I domain
Structure domains: Dockerin domain

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID14-2
Spacegroup: P3221
Unit cell:
a: 76.42Å b: 76.42Å c: 111.095Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.182 0.179 0.234
Expression system: Escherichia coli BL21(DE3)