Evidence of reciprocal reorientation of the catalytic and hemopexin-like domains of full-length MMP-12.Bertini, I., Calderone, V., Fragai, M., Jaiswal, R., Luchinat, C., Melikian, M., Mylonas, E., Svergun, D.I.
(2008) J.Am.Chem.Soc. 130: 7011-7021
- PubMed: 18465858
- DOI: 10.1021/ja710491y
- Primary Citation of Related Structures:
- PubMed Abstract:
- Structural insight into the complex formation of latent matrix metalloproteinase 2 with tissue inhibitor of metalloproteinase 2
Morgunova, E.,Tuuttila, A.,Bergmann, U.,Tryggvason, K.
(2002) Proc.Natl.Acad.Sci.Usa 99: 7414
- X-ray structure of human proMMP-1: new insights into procollagenase activation and collagen binding
Jozic, D.,Bourenkov, G.,Lim, N.H.,Visse, R.,Nagase, H.,Bode, W.,Maskos, K.
(2005) J.Biol.Chem. 280: 9578
The proteolytic activity of matrix metalloproteinases toward extracellular matrix components (ECM), cytokines, chemokines, and membrane receptors is crucial for several homeostatic and pathological processes. Active MMPs are a family of single-chain ...
The proteolytic activity of matrix metalloproteinases toward extracellular matrix components (ECM), cytokines, chemokines, and membrane receptors is crucial for several homeostatic and pathological processes. Active MMPs are a family of single-chain enzymes (23 family members in the human genome), most of which constituted by a catalytic domain and by a hemopexin-like domain connected by a linker. The X-ray structures of MMP-1 and MMP-2 suggest a conserved and well-defined spatial relationship between the two domains. Here we present structural data for MMP-12, suitably stabilized against self-hydrolysis, both in solution (NMR and SAXS) and in the solid state (X-ray), showing that the hemopexin-like and the catalytic domains experience conformational freedom with respect to each other on a time scale shorter than 10(-8) s. Hints on the probable conformations are also obtained. This experimental finding opens new perspectives for the often hypothesized active role of the hemopexin-like domain in the enzymatic activity of MMPs.
Magnetic Resonance Center (CERM), University of Florence, Via L. Sacconi 6, 50019 Sesto Fiorentino, Italy. email@example.com