申请人:Kaneka Corporation
公开号:US20020192786A1
公开(公告)日:2002-12-19
To provide a method for preparing optically active compounds, which mainly contain (R)-amino compounds, by microbial enzymes efficiently and inexpensively; a polypeptide having stereoselective transaminase activity which can be suitably used for the above preparation method; and a DNA encoding the polypeptide. A method for preparing an optically active amino compound, characterized in stereoselectively transaminating by acting a transaminase on an amino group acceptor, a ketone compound in the presence of an amino group donor, a primary amine; a DNA comprising a nucleotide sequence encoding a polypeptide having stereoselective transaminase activity; and a polypeptide having stereoselective transaminase activity obtainable from a culture of a microorganism belonging to the genus Arthrobacter.
提供一种通过微生物酶高效、低成本地制备主要含有(R)-氨基化合物的手段;一种具有立体选择性转氨酶活性的多肽,适用于上述制备方法;以及编码该多肽的DNA。一种制备光学活性氨基化合物的方法,其特征在于,在存在氨基供体——一种初级胺的情况下,通过作用转氨酶对氨基受体进行立体选择性转氨,将酮化合物转化为目标化合物;一种包含编码具有立体选择性转氨酶活性的多肽的核苷酸序列的DNA;以及从属于芽孢杆菌属的微生物培养物中获得的具有立体选择性转氨酶活性的多肽。