Experimental Data Snapshot

  • Resolution: 1.90 Å
  • R-Value Work: 0.198 
  • R-Value Observed: 0.198 

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Crystal structures of recombinant 19-kDa human fibroblast collagenase complexed to itself.

Lovejoy, B.Hassell, A.M.Luther, M.A.Weigl, D.Jordan, S.R.

(1994) Biochemistry 33: 8207-8217

  • DOI: https://doi.org/10.1021/bi00193a006
  • Primary Citation of Related Structures:  
    1CGE, 1CGF

  • PubMed Abstract: 

    Collagenase is a member of the matrix metalloproteinase (MMP) family of enzymes. Aberrant regulation of this family has been implicated in pathologies such as arthritis and metastasis. Two crystal forms of the catalytic (19-kDa) domain of human fibroblast collagenase have been determined using collagenase complexed with a peptide-based inhibitor (CPLX) as a starting model [Lovejoy et al. (1994) Science 263, 375]. The first crystal form (CF1) contains one molecule in the asymmetric unit and has been determined at 1.9-A resolution with an R factor of 19.8%. The second crystal form (CF2) contains two molecules (A and B) in the asymmetric unit and has been determined at 2.1-A resolution with an R factor of 19.7%. The catalytic domain of collagenase is spherical with an active site cleft that contains a ligated catalytic zinc ion. Collagenase shares some structural homology with the bacterial zinc proteinase, thermolysin [Matthews et al. (1972) Nature, New Biol. 238, 37], and the crayfish digestive peptidase, astacin [Bode et al. (1992) Nature 358, 164]. The amino terminus (Leu 102 to Gly 105) of CF1 and CF2 molecules A and B differs from the conformation found in CPLX by bending away from the molecule and interacting with the active site cleft of symmetry-related molecules. In this alternative conformation, both the mainchain nitrogen and carbonyl oxygen of Leu 102 ligate the symmetry-related catalytic zinc. Although there are structural differences in the active site clefts of CF1, CF2, and CPLX, a number of complex-stabilizing interactions are conserved. The structure of collagenase will be useful for developing compounds that selectively inhibit individual members of the closely related matrix metalloproteinase family.

  • Organizational Affiliation

    Glaxo Research Institute, Research Triangle Park, North Carolina 27709.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
FIBROBLAST COLLAGENASE168Homo sapiensMutation(s): 0 
Gene Names: CDNA
UniProt & NIH Common Fund Data Resources
Find proteins for P03956 (Homo sapiens)
Explore P03956 
Go to UniProtKB:  P03956
GTEx:  ENSG00000196611 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP03956
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.90 Å
  • R-Value Work: 0.198 
  • R-Value Observed: 0.198 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 72.6α = 90
b = 72.6β = 90
c = 75.1γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1995-03-31
    Type: Initial release
  • Version 1.1: 2008-03-03
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2024-02-07
    Changes: Data collection, Database references, Derived calculations, Other