1Y93

Crystal structure of the catalytic domain of human MMP12 complexed with acetohydroxamic acid at atomic resolution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.03 Å
  • R-Value Free: 0.168 
  • R-Value Work: 0.156 
  • R-Value Observed: 0.157 

Starting Model: experimental
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This is version 1.4 of the entry. See complete history


Literature

Conformational variability of matrix metalloproteinases: Beyond a single 3D structure

Bertini, I.Calderone, V.Cosenza, M.Fragai, M.Lee, Y.-M.Luchinat, C.Mangani, S.Terni, B.Turano, P.

(2005) Proc Natl Acad Sci U S A 102: 5334-5339

  • DOI: https://doi.org/10.1073/pnas.0407106102
  • Primary Citation of Related Structures:  
    1RMZ, 1Y93, 1YCM, 1Z3J

  • PubMed Abstract: 

    The structures of the catalytic domain of matrix metalloproteinase 12 in the presence of acetohydroxamic acid and N-isobutyl-N-[4-methoxyphenylsulfonyl]glycyl hydroxamic acid have been solved by x-ray diffraction in the crystalline state at 1.0 and 1.3-A resolution, respectively, and compared with the previously published x-ray structure at 1.2-A resolution of the adduct with batimastat. The structure of the N-isobutyl-N-[4-methoxyphenylsulfonyl]glycyl hydroxamic acid adduct has been solved by NMR in solution. The three x-ray structures and the solution structure are similar but not identical to one another, the differences being sizably higher in the loops. We propose that many of the loops show a dynamical behavior in solution on a variety of time scales. Different conformations of some flexible regions of the protein can be observed as "frozen" in different crystalline environments. The mobility in solution studied by NMR reveals conformational equilibria in accessible time scales, i.e., from 10(-5) s to ms and more. Averaging of some residual dipolar couplings is consistent with further motions down to 10(-9) s. Finally, local thermal motions of each frozen conformation in the crystalline state at 100 K correlate well with local motions on the picosecond time scale. Flexibility/conformational heterogeneity in crucial parts of the catalytic domain is a rule rather than an exception in matrix metalloproteinases, and its extent may be underestimated by inspection of one x-ray structure. Backbone flexibility may play a role in the difficulties encountered in the design of selective inhibitors, whereas it may be a requisite for substrate binding and broad substrate specificity.


  • Organizational Affiliation

    Magnetic Resonance Center (Centro di Risonanze Magnetiche), University of Florence, Via Luigi Sacconi 6, 50019 Sesto Fiorentino, Italy. [email protected]


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Macrophage metalloelastase159Homo sapiensMutation(s): 1 
Gene Names: MMP12HME
EC: 3.4.24.65
UniProt & NIH Common Fund Data Resources
Find proteins for P39900 (Homo sapiens)
Explore P39900 
Go to UniProtKB:  P39900
PHAROS:  P39900
GTEx:  ENSG00000262406 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP39900
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.03 Å
  • R-Value Free: 0.168 
  • R-Value Work: 0.156 
  • R-Value Observed: 0.157 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 50.913α = 90
b = 59.552β = 115.14
c = 53.497γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
CCP4data scaling
MOLREPphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2005-04-26
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Atomic model, Version format compliance
  • Version 1.3: 2021-10-20
    Changes: Database references, Derived calculations
  • Version 1.4: 2023-08-23
    Changes: Data collection, Refinement description