摘要:
Provided is an efficient and industrial method for producing (R)-3-quinuclidinol which is a compound useful as an intermediate for the production of pharmaceuticals. The method for producing (R)-3-quinuclidinol includes reducing 3-quinuclidinone or a salt thereof in the presence of a polypeptide derived from bacteria of the genus Burkholderia or a recombinant organism capable of producing the polypeptide.
摘要:
Objects of the invention are to provide modified carbonyl reductases having improved reactivity in the presence of halogen atoms in comparison with a wild-type enzyme, as well as a method for efficiently manufacturing an optically active alcohol using these enzymes. Modified carbonyl reductases having improved reactivity in the presence of halogen atoms in comparison with the wild type were isolated from a library of modified carbonyl reductases prepared by introducing random mutations into the wild-type enzyme gene. There are also provided enzymes as well as DNA encoding the enzymes, transformants producing the enzymes, and a method of efficiently manufacturing an optically active alcohol using these.
摘要:
A method for efficiently producing an optically active amino compound useful as an intermediate for pharmaceutical preparations, agricultural chemicals, or the like, from a ketone compound is provided. Specifically, a polypeptide having high resistance to a water-soluble organic solvent and novel transaminase activity for generating (S)-1-benzyl-3-pyrrolidinone with high optical purity of 93% or more, a gene encoding the same, and a transformant expressing the gene at a high level are also provided herein.
摘要:
The technical problem to be solved by the present invention is to provide a method for producing oxidized glutathione, GSSG and a precursor thereof, i.e., oxidized γ-glutamylcysteine, by a simple process. As a means for solving the problem, the method for producing GSSG according to the present invention comprises step A' of reacting L-cystine and L-glutamic acid to produce oxidized γ-glutamylcysteine and step B' of reacting oxidized γ-glutamylcysteine and glycine to produce GSSG.
摘要:
A method for inexpensively and efficiently producing an optically active amino compound useful as an intermediate for pharmaceutical preparations, agricultural chemicals, or the like, from a ketone compound is provided. Specifically, a polypeptide exhibiting higher activity for glutamic acid as an amino donor than that for L-alanine, and, having novel transaminase activity for generating (S)-1-benzyl-3-pyrrolidinone with high optical purity of 93% or more, a gene encoding the same, and a transformant expressing the gene at a high level are also provided herein.