Fluorescence and Structure of Proteins as measured by Incorporation of Fluorophore. II. Synthesis of Maleimide Derivatives as Fluorescence-Labeled Protein-Sulfhydryl Reagents.
作者:Yuichi Kanaoka、Minoru Machida、Yoshio Ban、Takamitsu Sekine
DOI:10.1248/cpb.15.1738
日期:——
A novel approach to studies of structure and function of proteins utilizing fluorescencelabeled specific reagent is proposed. N-[p-(2-Benzoxazolyl) phenyl] maleimide (IIIa) and N-[p-(2-benzthiazolyl) phenyl] maleimide (IIIb) were synthesized as sulfhydryl reagents of this type and the addition reaction with cysteine ester was investigated. Cyclization of maleamic acids with PPA is demonstrated to be a good method for synthesis of N-substituted maleimides.
提出了一种利用荧光标记特定试剂研究蛋白质结构和功能的新方法。合成了N-[p-(2-苯并恶唑基)苯基]马来酰亚胺(IIIa)和N-[p-(2-苯并噻唑基)苯基]马来酰亚胺(IIIb)作为此类巯基试剂,并对其与半胱氨酸酯的加成反应进行了研究。此外,使用PPA进行马来酰胺酸的环化证明是一种合成N-取代马来酰亚胺的良好方法。