摘要:
The present invention relates to a protein derived from a microorganism belonging to the genus Bacillus, which has an activity of hydroxylating a compound represented by the formula (I-a): wherein R 1 represents a hydrogen atom, a substituted or unsubstituted alkyl, or an alkali metal, and R 2 represents a substituted or unsubstituted alkyl or a substituted or unsubstituted aryl, or a ring-closed lactone form thereof; a DNA encoding said protein; and a recombinant DNA comprising said DNA.
摘要:
This invention relates to a process for producing a complex carbohydrate, which comprises: selecting, as enzyme sources, a culture broth of a microorganism capable of producing a sugar nucleotide from a nucleotide precursor and a sugar, or a treated product of the culture broth, and a culture broth of a microorganism or animal cell capable of producing a complex carbohydrate from a sugar nucleotide and a complex carbohydrate precursor, or a treated product of the culture broth; carrying out an enzyme reaction in an aqueous medium containing the enzyme sources, the nucleotide precursor, the sugar and the complex carbohydrate precursor to form and accumulate the complex carbohydrate in the aqueous medium; and recovering the complex carbohydrate from the aqueous medium, and a process for producing a sugar nucleotide, which comprises selecting, as an enzyme source, a culture broth of a microorganism capable of producing a sugar nucleotide from a nucleotide precursor and a sugar, or a treated product of the culture broth; carrying out an enzyme reaction in an aqueous medium containing the enzyme source, the nucleotide precursor and the sugar to form and accumulate the sugar nucleotide in the aqueous medium; and recovering the sugar nucleotide from the aqueous medium.
摘要:
The present invention relates to industrial methods for producing cis-3-hydroxy-L-proline which is useful as a starting compound for medicines and an additive to foods, genes which code for L-proline 3-hydroxylases and which are useful for the above-mentioned process, recombinant DNA containing the gene, transformants containing the recombinant DNA, methods for producing L-proline 3-hydroxylases using the transformants and the enzyme.
摘要:
The present invention relates to industrial methods for producing trans-4-hydroxy-L-proline which is useful as a starting compound for medicines and an additive to foods, genes which code for L-proline 4-hydroxylases and which are useful for the above-mentioned process, recombinant DNA containing the gene, transformants containing the recombinant DNA, methods for producing L-proline 4-hydroxylases using the transformants and the enzyme.
摘要:
GMP can be prepared in a good yield by converting XMP, ammonia and/or L-glutamine in an aqueous solution using a culture product, cells or their treated product of E. coli having GMP synthetase activity and the ability of converting AMP to ATP in the presence of an energy source other than phosphorus oxides, in the presence of the energy source. GMP can also be prepared in a good yield by converting XMP, ammonia and/or L-glutamine to GMP in an aqueous medium in the presence of ATP using a culture product, cells or their treated product of transformant obtained by using a recombinant DNA of a DNA fragment containing GMP synthetase gene and a vector DNA fragment. The process of using transformant having ATP- reproducing ability is extremely advantageous.
摘要:
A process for industrially producing cis-3-hydroxy-L-proline which is useful as a material in the synthesis of drugs or a food additive; an L-proline 3-hydroxylase gene useful in this process; a recombinant DNA containing this gene; a transformant containing this recombinant DNA; a process for producing L-proline 3-hydroxilase with the use of this transformant; and this enzyme.
摘要:
A process for industrially producing trans-4-hydroxy-L-proline which is useful as a material in the synthesis of drugs or a food additive; an L-proline 4-hydroxylase gene useful in this process; a recombinant DNA containing this gene; a transformant containing this recombinant DNA; L-proline 4-hydroxylase obtained with the use of this transformant; and this enzyme.
摘要:
The present invention provides a novel protein having N -acetylglucosamine 2-epimerase activity; a DNA encoding the protein; a recombinant vector containing the DNA; a transformant obtainable by introducing the recombinant vector into a host cell; and a process for producing the protein or N -acetylmannosamine using the transformant.
摘要:
The present invention provides a process for producing isoprenoid compounds or proteins encoded by DNA using DNA that contains one or more of the DNA encoding proteins having activity to improve efficiency in the biosynthesis of isoprenoid compounds effective in pharmaceuticals for cardiac diseases, osteoporosis, homeostasis, prevention of cancer, and immunopotentiation, health food and anti-fouling paint products against barnacles the DNA; the protein; and a method for screening a substance with antibiotic and weeding activities comprising screening a substance inhibiting enzymatic reaction on the non-mevalonate pathway.