[EN] LABELED CHIRAL ALPHA-HYDROXY KETOACID DERIVATIVES, A PROCESS FOR PREPARING SAID DERIVATIVES AND THEIR USE<br/>[FR] DÉRIVÉS D'ALPHA-HYDROXY-CÉTOACIDE CHIRAUX MARQUÉS, PROCÉDÉ POUR PRÉPARER LESDITS DÉRIVÉS ET LEUR UTILISATION
申请人:COMMISSARIAT ENERGIE ATOMIQUE
公开号:WO2014024151A1
公开(公告)日:2014-02-13
The present invention relates to labeled chiral alpha-hydroxy ketoacid derivatives, a process for preparing said derivatives and their use for isotopic labeling of amino acids, in particular, for isotopic labeling of methyl groups of amino acids, and more particularly, for specific isotopic labeling of valine, leucine and isoleucine methyl groups, in proteins and biomolecular assemblies. The invention also concerns a process for analyzing proteins and biomoiecular assemblies by NMR spectroscopy comprising a step of isotopic labeling of amino acids, in particular, valine, leucine and isoleucine, in proteins and biomolecular assemblies to be analyzed by the chiral alpha-hydroxy ketoacid derivatives of the invention. The invention further relates to a kit for isotopic labeling of valine, leucine and isoleucine amino acids, in proteins and biomolecular assemblies comprising one or more chiral alpha-hydroxy ketoacid derivatives of the invention.
本发明涉及标记的手性α-羟基酮酸衍生物,一种制备该衍生物的方法以及它们用于氨基酸的同位素标记,特别是用于氨基酸的甲基基团的同位素标记,更具体地说,用于特定同位素标记蛋白质和生物分子组装中缬氨酸、亮氨酸和异亮氨酸甲基基团的同位素标记。该发明还涉及一种通过NMR光谱分析蛋白质和生物分子组装的方法,其中包括对待分析的蛋白质和生物分子组装中的氨基酸,特别是缬氨酸、亮氨酸和异亮氨酸进行同位素标记,以使用本发明的手性α-羟基酮酸衍生物。此外,该发明涉及一种用于对缬氨酸、亮氨酸和异亮氨酸氨基酸在蛋白质和生物分子组装中进行同位素标记的试剂盒,其中包括本发明的一个或多个手性α-羟基酮酸衍生物。