摘要:
The present invention is to provide a gene having asymmetric hydrolase activity which is useful for synthesis of an optically active carboxylic acid, its antipode ester, and lactone, and a hydroxycarboxylic ester asymmetric hydrolase enzyme (EnHCH) derived from Enterobacter sp . DS-S-75 strain (FERM BP-5494) which is bacteria belonging to the genus Enterobacter , a EnHCH gene shown by base sequence of SEQ.ID.NO: 1, a gene encoding a protein having an amino acid sequence of SEQ.ID.NO: 2, and E. coli DH5α (pKK-EnHCH) deposited to International Patent Organism Depositary, National Institute of Advanced Industrial Science and Technology as a deposition No. FERM BP-08466.
摘要:
A process for preparing an optically active 4-halogeno-1,3-butanediol and (R)-1,2,4-butanetriol or (S)-3-hydroxy-γ-butyrolactone which comprises reacting a racemic 4-halogeno-1,3-butanediol with a specific microorganism belonging to the genus Pseudomonas.
摘要:
A process for preparation of (R)-1,2-propanediol which comprises cultivating a microorganism belonging to genus Pseudomonas or genus Alcaligenes which has ability to assimilate (S)-1,2-propanediol as a single carbon source, in a culture medium containing racemic 1,2-propanediol as a single carbon source and then isolating the remaining (R)-1,2-propanediol from the culture broth.
摘要:
A process for the preparation of an optically active 1,2-diol compound of the following formula: wherein R is an alkyl group, hydroxy substituted alkyl group, or alkenyl group, which comprises reacting a corresponding racemic 1,2-diol compound with a strain belonging to the genus Alcaligenes which is cultivated under aeration.
摘要:
A process for the preparation of an optically active 1,2-diol compound of the following formula: wherein R is an alkyl group, hydroxy substituted alkyl group, or alkenyl group, which comprises reacting a corresponding racemic 1,2-diol compound with a strain belonging to the genus Alcaligenes which is cultivated under aeration.
摘要:
The present invention is to provide a gene having asymmetric hydrolase activity which is useful for synthesis of an optically active carboxylic acid, its antipode ester, and lactone, and a hydroxycarboxylic ester asymmetric hydrolase enzyme (EnHCH) derived from Enterobacter sp . DS-S-75 strain (FERM BP-5494) which is bacteria belonging to the genus Enterobacter , a EnHCH gene shown by base sequence of SEQ.ID.NO: 1, a gene encoding a protein having an amino acid sequence of SEQ.ID.NO: 2, and E. coli DH5α (pKK-EnHCH) deposited to International Patent Organism Depositary, National Institute of Advanced Industrial Science and Technology as a deposition No. FERM BP-08466.
摘要:
The present invention provides a method for obtaining optically active 3-chloro-2-methyl-1,2-propanediol, the method comprising: a first step of letting at least one kind of microorganism or processed product thereof having an ability to leave untouched (R)-3-chloro-2-methyl-1,2-propanediol or (S)-3-chloro-2-methyl-1,2-propanediol in the presence of an enantiomeric 3-chloro-2-methyl-1,2-propanediol mixture act on an enantiomeric 3-chloro-2-methyl-1,2-propanediol mixture; and a second step of recovering the untouched optically active 3-chloro-2-methyl-1,2-propanediol.