Activation of β- and γ-carbonic anhydrases from pathogenic bacteria with tripeptides
نویسندگان
چکیده
منابع مشابه
Comparison of the Sulfonamide Inhibition Profiles of the β- and γ-Carbonic Anhydrases from the Pathogenic Bacterium Burkholderia pseudomallei.
We have cloned, purified, and characterized a β-carbonic anhydrase (CA, EC 4.2.1.1), BpsCAβ, from the pathogenic bacterium Burkholderia pseudomallei, responsible for the tropical disease melioidosis. The enzyme showed high catalytic activity for the physiologic CO₂ hydration reaction to bicarbonate and protons, with the following kinetic parameters: kcat of 1.6 × 10⁵ s-1 and kcat/KM of 3.4 × 10...
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THE CONCEPT OF THE TRANSPORT METABOLON A metabolon has been defined as a “temporary, structural-functional, supramolecular complex of sequential metabolic enzymes and cellular structural elements, in which metabolites are passed from one active site to another without complete equilibration with the bulk cellular fluids” (Srere, 1985, 1987). This substrate channeling should decrease transit tim...
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Sequence studies of human erythrocyte carbonic anhydrase B show that it contains 256 residues. A series of relatively small peptides soluble in aqueous solutions obtained by chymotryptic and tryptic digestion of the enzyme, large peptides containing only COOH-terminal lysine or arginine as well as those resulting from more limited cleavage of the enzyme, and cyanogen bromide cleavage products s...
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Natural products represent a straightforward source for molecular structures bearing a vast array of chemical features and potentially useful for biomedical purposes. Recent examples of this type include the discovery of the coumarins and the polyamine natural products as atypical chemotypes for the inhibition of the metalloenzymes carbonic anhydrases (CAs; EC 4.2.2.1). CA enzymes are establish...
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tions make it possible to ascribe specific roles to particular residues, such as the conserved glycine residues 141 at bends in the basic fold which appear to constitute alcohol dchydrogenase per se. Each of these concepts can now be further tested by directed mutagenesis. Regarding the enzymic mechanisms, the basic properties of the zinc dehydrogenases have essentially been known for some time...
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ژورنال
عنوان ژورنال: Journal of Enzyme Inhibition and Medicinal Chemistry
سال: 2018
ISSN: 1475-6366,1475-6374
DOI: 10.1080/14756366.2018.1468530