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Title: Aspartyl phosphonates and phosphoramidates: the first synthetic inhibitors of bacterial aspartate-semialdehyde dehydrogenase. Author: Cox RJ, Gibson JS, Mayo MartÃn MB. Journal: Chembiochem; 2002 Sep 02; 3(9):874-86. PubMed ID: 12210989. Abstract: The synthesis of methylene phosphonate, difluoromethylene phosphonate and phosphoramidate analogues of aspartyl phosphate, together with reduced analogues, is described. These compounds were shown to be effective inhibitors of aspartate-semialdehyde dehydrogenase (ASA-DH) from Escherichia coli. However, despite the structural similarity of the compounds, different patterns of inhibition were observed, indicative of two phases of recognition and binding. Correlation between measured inhibition constants with pK(a) values supports the theory that binding at the phosphate binding site is optimised for singly ionised phosphate analogues.[Abstract] [Full Text] [Related] [New Search]