TRANSAMINASE, THE PREPARATION THEREOF AND THE USE THEREOF

    公开(公告)号:CA1340515C

    公开(公告)日:1999-04-27

    申请号:CA601591

    申请日:1989-06-02

    Applicant: HOECHST AG

    Abstract: The invention relates to a novel transaminase, the preparation thereof and the use thereof. It has been found that it is possible to isolate from E. coli DH-l a transaminase with the aid of which it is possible with great efficiency to prepare L-phosphinothricin and .gamma.-aminobutyric acid from the appropriate precursors by transferring the amino group from glutamate. The novel transaminase has a molecular weight of 25,000 to 100,000 Dalton, an isoelectric point at a pH between 3.5 and 5.5 and a substrate specificity towards L-phosphinothricin, .gamma.-aminobutyric acid and glutamate as amino-group donor as well as the appropriate keto compounds as amino acceptor.

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