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Título: | Substrate specificity of a metalloprotease of the pappalysin family revealed by an inhibitor and a product complex |
Autor: | García-Castellanos, Raquel CSIC ORCID; Tallant, Cynthia CSIC; Marrero, Aniebrys CSIC; Solà, Maria CSIC ORCID ; Baumann, Ulrich CSIC; Gomis-Rüth, F. Xavier CSIC ORCID | Palabras clave: | X-ray crystal structure Ulilysin Serralysin Pappalysin Metzincin Astacin Batimastat Cancer Enzyme-inhibitor complex IGF IGFBP protease Metalloprotease |
Fecha de publicación: | 1-ene-2007 | Editor: | Academic Press | Citación: | Archives of Biochemistry and Biophysics 457(1): 57-72 (2007) | Resumen: | Human pappalysin-1 is a multi-domain metalloprotease engaged in the homeostasis of insulin-like growth factors and the founding member of the pappalysin family within the metzincin clan of metalloproteases. We have recently identified an archaeal relative, ulilysin, encompassing only the protease domain. It is a 262-residue active protease with a novel 3D structure with two subdomains separated by an active-site cleft. Despite negligible overall sequence similarity, noticeable similarity is found with other metzincin prototypes, adamalysins/ADAMs and matrix metalloproteinases. Ulilysin has been crystallised in a product complex with an arginine-valine dipeptide occupying the active-site S1′ and S2′ positions and in a complex with the broad-spectrum hydroxamic acid-based metalloprotease inhibitor, batimastat. This molecule inhibits mature ulilysin with an IC50 value of 61 μM under the conditions assayed. The binding of batimastat to ulilysin evokes binding to vertebrate matrix metalloproteases but is much weaker. These data give insight into substrate specificity and mechanism of action and inhibition of the novel pappalysin family. © 2006 Elsevier Inc. All rights reserved. | Versión del editor: | http://dx.doi.org/10.1016/j.abb.2006.10.004 | URI: | http://hdl.handle.net/10261/107582 | DOI: | 10.1016/j.abb.2006.10.004 | Identificadores: | doi: 10.1016/j.abb.2006.10.004 issn: 0003-9861 |
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