Journal
JOURNAL OF MEDICINAL CHEMISTRY
Volume 55, Issue 23, Pages 10742-10748Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jm301611m
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- EU
- Council of Higher Education of Turkey
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We have cloned, purified, and characterized an alpha-carbonic anhydrase (CA, EC 4.2.1.1) from the human pathogenic bacterium Vibrio cholerae, VchCA. The new enzyme has significant catalytic activity, and an inhibition study with sulfonamides and sulfamates led to the detection of a large number of low nanomolar inhibitors, among which are methazolamide, acetazolamide, ethoxzolamide, dorzolamide, brinzolamide, benzolamide, and indisulam (K-1 values in the range 0.69-8.1 nM). As bicarbonate is a virulence factor of this bacterium and since ethoxzolamide was shown to inhibit the in vivo virulence, we propose that VchCA may be a target for antibiotic development, exploiting a mechanism of action rarely considered until now.
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