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Bioorg Med Chem Lett. 2012 Apr 1;22(7):2555-9. doi: 10.1016/j.bmcl.2012.01.123. Epub 2012 Feb 4.

Penicillin inhibitors of purple acid phosphatase.

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  • 1The University of Queensland, School of Chemistry and Molecular Biosciences, Brisbane, Qld 4072, Australia.

Abstract

Purple acid phosphatases (PAPs) are binuclear metallohydrolases that have a multitude of biological functions and are found in fungi, bacteria, plants and animals. In mammals, PAP activity is linked with bone resorption and over-expression can lead to bone disorders such as osteoporosis. PAP is therefore an attractive target for the development of drugs to treat this disease. A series of penicillin conjugates, in which 6-aminopenicillanic acid was acylated with aromatic acid chlorides, has been prepared and assayed against pig PAP. The binding mode of most of these conjugates is purely competitive, and some members of this class have potencies comparable to the best PAP inhibitors yet reported. The structurally related penicillin G was shown to be neither an inhibitor nor a substrate for pig PAP. Molecular modelling has been used to examine the binding modes of these compounds in the active site of the enzyme and to rationalise their activities.

Crown Copyright © 2012. Published by Elsevier Ltd. All rights reserved.

PMID:
22366658
[PubMed - indexed for MEDLINE]
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