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Título

Structures of adamalysin II with peptidic inhibitors. Implications for the design of tumor necrosis factor alpha convertase inhibitors

AutorGomis-Rüth, F. Xavier ; Meyer, Edgar F.; Kress, Lawrence F.; Politi, Vicenzo
Palabras claveADAM
Adamalysin
Snake venom prokinase
X-ray structure
Zine endopeptidase
Fecha de publicaciónfeb-1998
EditorCold Spring Harbor Laboratory. Press
CitaciónProtein Science 7(2): 283–292 (1998)
ResumenCrotalus adamanteus snake venom adamalysin II is the structural prototype of the adamalysin or ADAM family comprising proteolytic domains of snake venom metalloproteinases, multimodular mammalian reproductive tract proteins, and tumor necrosis factor alpha convertase, TACE, involved in the release of the inflammatory cytokine, TNFalpha. The structure of adamalysin II in noncovalent complex with two small-molecule right-hand side peptidomimetic inhibitors (Pol 647 and Pol 656) has been solved using X-ray diffraction data up to 2.6 and 2.8 A resolution. The inhibitors bind to the S'-side of the proteinase, inserting between two protein segments, establishing a mixed parallel-antiparallel three-stranded beta-sheet and coordinate the central zinc ion in a bidentate manner via their two C-terminal oxygen atoms. The proteinase-inhibitor complexes are described in detail and are compared with other known structures. An adamalysin-based model of the active site of TACE reveals that these small molecules would probably fit into the active site cleft of this latter metalloproteinase, providing a starting model for the rational design of TACE inhibitors.
Descripción10 pages, 7 figures, 3 tables.-- PMID: 9521103 [PubMed].-- PMCID: PMC2143928.
Versión del editorhttp://dx.doi.org/10.1002/pro.5560070207
URIhttp://hdl.handle.net/10261/26585
DOI10.1002/pro.5560070207
ISSN0961-8368 (Print)
1469-896X (Online)
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