Highly potent bisphosphonate ligands for phosphoglycerate kinase |
| |
Authors: | DL Jakeman AJ Ivory MP Williamson GM Blackburn |
| |
Affiliation: | Krebs Institute, Department of Chemistry, University of Sheffield, Sheffield, S3 7HF, UK. |
| |
Abstract: | We have synthesized a series of novel analogs of 1, 3-bisphospho-D-glyceric acid, 1,3-BPG,3 and evaluated their binding to phosphoglycerate kinase, PGK (EC 2.7.2.3). Nonscissile methanephosphonic acids replace the two phosphate monoesters of 1, 3-BPG and lead to several stable, tight-binding mimics of this intermediate species in glycolysis. Multiple fluorine substitution for hydrogen in the alpha-methylene groups of the phosphonic acid 1, 3-BPG analogs markedly improves their binding to PGK as determined by NMR analysis. The best ligands bind some 50-100 times more strongly than does the substrate 3-phospho-D-glyceric acid and show a requirement for pKa3 to be generally below 6.0, while the presence of a beta-carbonyl group seems to be of secondary importance. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|