An object of the present invention is to provide a means for producing an optically active tropic acid that is a compound useful as a synthetic raw material or an intermediate for pharmaceutical products and the like. The present invention provides a novel polypeptide having activity to (R)-selectively hydrolyze a racemic tropic acid amide, DNA encoding the polypeptide, a vector containing the DNA, a transformant prepared by transformation with the vector, and a method for producing an optically active carboxylic acid amide and an optically active carboxylic acid using them.
                            本发明的目的是提供一种生产光学活性的热带酸的手段,该化合物可用作合成原料或药物等中间体。本发明提供了一种新型
多肽,具有(R)-选择性
水解混合的热带酸酰胺的活性,编码该
多肽的DNA,含有该DNA的载体,通过该载体转化而制备的转化体,以及使用它们生产光学活性
羧酸酰胺和光学活性
羧酸的方法。