β-Keto and β-hydroxyphosphonate analogs of biotin-5′-AMP are inhibitors of holocarboxylase synthetase
摘要:
Holocarboxylase synthetase (HLCS) catalyzes the covalent attachment of biotin to cytoplasmic and mitochondrial carboxylases, nuclear histones, and over a hundred human proteins. Nonhydrolyzable ketophosphonate (beta-ketoP) and hydroxyphosphonate (beta-hydroxyP) analogs of biotin-5'- AMP inhibit holocarboxylase synthetase (HLCS) with IC50 values of 39.7 mu M and 203.7 mu M. By comparison, an IC50 value of 7 mu M was observed with the previously reported biotinol-5'-AMP. The K-i values, 3.4 mu M and 17.3 mu M, respectively, are consistent with the IC50 results, and close to the K-i obtained for biotinol-5'-AMP (7 mu M). The beta-ketoP and b-hydroxyP molecules are competitive inhibitors of HLCS while biotinol-5'-AMP inhibited HLCS by a mixed mechanism. (C) 2014 Elsevier Ltd. All rights reserved.
β-Keto and β-hydroxyphosphonate analogs of biotin-5′-AMP are inhibitors of holocarboxylase synthetase
摘要:
Holocarboxylase synthetase (HLCS) catalyzes the covalent attachment of biotin to cytoplasmic and mitochondrial carboxylases, nuclear histones, and over a hundred human proteins. Nonhydrolyzable ketophosphonate (beta-ketoP) and hydroxyphosphonate (beta-hydroxyP) analogs of biotin-5'- AMP inhibit holocarboxylase synthetase (HLCS) with IC50 values of 39.7 mu M and 203.7 mu M. By comparison, an IC50 value of 7 mu M was observed with the previously reported biotinol-5'-AMP. The K-i values, 3.4 mu M and 17.3 mu M, respectively, are consistent with the IC50 results, and close to the K-i obtained for biotinol-5'-AMP (7 mu M). The beta-ketoP and b-hydroxyP molecules are competitive inhibitors of HLCS while biotinol-5'-AMP inhibited HLCS by a mixed mechanism. (C) 2014 Elsevier Ltd. All rights reserved.
Cyclic phosphate of nucleoside derivatives for the treatment of viral infections in mammals, which is a compound, its stereoisomers, salts (acid or basic addition salts), hydrates, solvates, or crystalline forms thereof, represented by the following structure:
Cyclic phosphate of nucleoside derivatives for the treatment of viral infections in mammals, which is a compound, its stereoisomers, salts (acid or basic addition salts), hydrates, solvates, or crystalline forms thereof, represented by the following structure: Formula (I)
β-Keto and β-hydroxyphosphonate analogs of biotin-5′-AMP are inhibitors of holocarboxylase synthetase
作者:Wantanee Sittiwong、Elizabeth L. Cordonier、Janos Zempleni、Patrick H. Dussault
DOI:10.1016/j.bmcl.2014.11.010
日期:2014.12
Holocarboxylase synthetase (HLCS) catalyzes the covalent attachment of biotin to cytoplasmic and mitochondrial carboxylases, nuclear histones, and over a hundred human proteins. Nonhydrolyzable ketophosphonate (beta-ketoP) and hydroxyphosphonate (beta-hydroxyP) analogs of biotin-5'- AMP inhibit holocarboxylase synthetase (HLCS) with IC50 values of 39.7 mu M and 203.7 mu M. By comparison, an IC50 value of 7 mu M was observed with the previously reported biotinol-5'-AMP. The K-i values, 3.4 mu M and 17.3 mu M, respectively, are consistent with the IC50 results, and close to the K-i obtained for biotinol-5'-AMP (7 mu M). The beta-ketoP and b-hydroxyP molecules are competitive inhibitors of HLCS while biotinol-5'-AMP inhibited HLCS by a mixed mechanism. (C) 2014 Elsevier Ltd. All rights reserved.