Shigellaapyrase - a novel variant of bacterial acid phosphatases?
- 23 January 2002
- journal article
- Published by Wiley in FEBS Letters
- Vol. 512 (1-3) , 8-12
- https://doi.org/10.1016/s0014-5793(02)02287-1
Abstract
A virulence-associated ATP diphosphohydrolase activity in the periplasm of Shigella, identified as apyrase, was found to be markedly similar to bacterial non-specific acid phosphatases in primary structure. When the Shigella apyrase sequence was threaded in to the recently published 3D structure of the highly similar (73%) Escherichia blattae acid phosphatase it was found to have a highly overlapping 3D structure. Our analysis, which included assays for phosphatase, haloperoxidase and catalase activities, led us to hypothesize that Shigella apyrase might belong to a new class of pyrophosphatase originating as one more variant in the family of bacterial non-specific acid phosphatases. It revealed interesting structure–function relationships and probable roles relevant to pathogenesis.Keywords
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