1nqd

X-ray diffraction
1.65Å resolution

CRYSTAL STRUCTURE OF CLOSTRIDIUM HISTOLYTICUM COLG COLLAGENASE COLLAGEN-BINDING DOMAIN 3B AT 1.65 ANGSTROM RESOLUTION IN PRESENCE OF CALCIUM

Released:

Function and Biology Details

Reaction catalysed:
Digestion of native collagen in the triple helical region at -|-Gly bonds. With synthetic peptides, a preference is shown for Gly at P3 and P1', Pro and Ala at P2 and P2', and hydroxyproline, Ala or Arg at P3'.
Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-194957 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Collagenase ColG Chains: A, B
Molecule details ›
Chains: A, B
Length: 122 amino acids
Theoretical weight: 13.81 KDa
Source organism: Hathewaya histolytica
Expression system: Escherichia coli BL21
UniProt:
  • Canonical: Q9X721 (Residues: 1003-1118; Coverage: 11%)
Gene name: colG
Sequence domains: Bacterial pre-peptidase C-terminal domain
Structure domains: Jelly Rolls

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X25
Spacegroup: P21
Unit cell:
a: 40.867Å b: 59.401Å c: 48.572Å
α: 90° β: 98.73° γ: 90°
R-values:
R R work R free
0.191 0.185 0.254
Expression system: Escherichia coli BL21