摘要:
A method for manufacturing a product of a reaction catalyzed by a protein having 2-oxoglutarate-dependent enzyme activity such as (2S,3R,4S)-4-hydroxy-L-isoleucine or a salt thereof using a bacterium transformed with a DNA fragment containing a gene coding for a protein having 2-oxoglutarate-dependent enzyme activity such as L-isoleucine dioxygenase activity; and wherein said bacterium has the ability to produce a product such as (2S,3R,4S)-4-hydroxy-L-isoleucine.
摘要:
The present invention provides a process for selectively producing an enantiomer at position 4 of an optically active compound in the cross aldol reaction of pyruvic acid and indole-3-pyruvic acid. The process comprises the step of reacting pyruvic acid with indole-3-pyruvic acid in the presence of an optically active α-amino acid containing a secondary amine and a metal ion.
摘要:
The present invention provides a process for selectively producing an enantiomer at position 4 of an optically active compound in the cross aldol reaction of pyruvic acid and indole-3-pyruvic acid. The process comprises the step of reacting pyruvic acid with indole-3-pyruvic acid in the presence of an optically active α-amino acid containing a secondary amine and a metal ion.
摘要:
A solution to be treated containing monatin and impurities is treated with a nonpolar resin having aromatic rings, whereby monatin is separated from the solution. Treatment with the nonpolar resin having aromatic rings results in efficient separation of monatin under a mild pH condition.
摘要:
Xylitol is produced by contacting D-arabitol with a microorganism that belongs to the genus Gluconobacter, Acetobacter, Achromobacter, Agrobacterium, Arthrobacter, Azotobacter, Brevibacterium, Corynebacterium, Erwinia, Flavobacterium, Micrococcus, Nocardia, Planococcus, Pseudomonas, Rhodococcus, Morganella, Actinomadura, Actinomyces, or Streptomyces and is capable of converting D-arabitol to xylitol, and recovering xylitol thus produced.
摘要:
A shuttle vector autonomously replicable in bacteria belonging to the genera Gluconobacter and Escherichia is constructed from an endogenous plasmid of Gluconobacter oxydans IF03171 strain, which has a size of about 5.6 kb, or a part thereof, and a plasmid autonomously replicable in bacteria belonging to the genus Escherichia or a part thereof. The present invention provides a novel plasmid useful for gene manipulation of Gluconobacter bacteria, and a shuttle vector utilizing the plasmid.
摘要:
According to one embodiment, a MEMS memory microprobe includes a probe tip, a lever, and a base. The probe tip is arranged to oppose a recording medium and is brought into contact with the recording medium to perform recording or reproduction of information when a current or voltage is applied between them. In the probe tip, a plurality of electrodes used in the recording or reproduction and a plurality of support portions which form the probe tip together with the electrodes are alternately arranged, and the electrodes and the support portions form a single plane which opposes the recording medium.
摘要:
The present invention provides novel α-amino acid derivatives of formula (1): (wherein, R1, R2, R3, R4, X and Y are as defined in the claims) or pharmaceutically acceptable salts, prodrugs or solvates thereof. The derivatives of formula (1) have βARK1 inhibitory activity and are useful for preventing or treating heart failure. Moreover, the derivatives of formula (1) also have antitumor activity, particularly dual inhibitory activity on Aurora kinase and CDK, and are useful for cell proliferative diseases such as cancer.
摘要:
A solution to be treated containing monatin and impurities is treated with a nonpolar resin having aromatic rings, whereby monatin is separated from the solution. Treatment with the nonpolar resin having aromatic rings results in efficient separation of monatin under a mild pH condition.