摘要:
A process for producing L-serine by the combination of chemical synthesis and enzyme chemical synthesis is disclosed. In this process L-serine is biochemically produced from 2-oxo-axazolidine-4-carboxylic acid or a salt thereof.
摘要:
A biological process for producing a 2',3'-dideoxyncleoside from 2',3'-dideoxyuridine is disclosed. The 2',3'-dideoxynucleoside can be purified readily using a porous nonpolar resin adsorbent.
摘要:
The present invention provides a method of producing optically active amino acids from 5-substituted hydantoin by isolating a hydantoinase gene and an N-carbamyl-L-amino acid hydrolase gene involved in an ability to convert 5-substituted hydantoin or N-carbamylamino acid into optically active amino acids from a microorganism of the genus Microbacterium having the above ability and by improving gene amplification and transcriptional and translational activities thereby preparing a recombinant wherein the amount of the desired enzymes produced is increased. The hydantoinase gene is, for example, a DNA encoding for a protein having a hydantoinase activity, which has the nucleotide sequence of SEQ ID NO:1. The N-carbamyl-L-amino acid hydrolase gene is, for example, a DNA encoding for a protein having an N-carbamyl-L-amino acid hydrolase activity, which has the nucleotide sequence of SEQ ID NO:3.
摘要翻译:本发明提供了一种通过分离涉及将5-取代的乙内酰脲或N-氨基甲酰基氨基酸转化成5-取代的乙内酰脲或N-氨基甲酰基氨基酸的能力的乙内酰脲酶基因和N-氨基甲酰基-L-氨基酸水解酶基因从5-取代的乙内酰脲生产旋光性氨基酸的方法 具有上述能力的微杆菌属的微生物的旋光活性氨基酸,通过改善基因扩增和转录和翻译活性,从而制备重组体,其中产生的所需酶的量增加。 乙内酰脲酶基因是例如编码具有乙内酰脲酶活性的蛋白质的DNA,其具有SEQ ID NO:1的核苷酸序列。 N-氨基甲酰基-L-氨基酸水解酶基因是例如编码具有N-氨基甲酰基-L-氨基酸水解酶活性的蛋白质的DNA,其具有SEQ ID NO:3的核苷酸序列。
摘要:
It is an object of the present invention to provide a procedure for realizing inexpensive and simple production of 3-indole-pyruvic acid. A transformant is made using a polynucleotide having a specific nucleotide sequence encoding a protein having an oxidase activity, and oxidase is generated by culturing the transformant in a medium to accumulate the oxidase in the medium and/or the transformant. Further, tryptophan is converted into 3-indole-pyruvic acid in the presence of the transformant and/or a culture thereof to produce 3-indole-pyruvic acid.
摘要:
DNA and recombinant DNA that encode a peptide-forming enzyme, a method for producing a peptide-forming enzyme, and a method for producing a dipeptide are disclosed. A method for producing a dipeptide includes producing a dipeptide from a carboxy component and an amine component by using a culture of a microbe belonging to the genus Sphingobacterium and having the ability to form the dipeptide from the carboxy component and the amine component, a microbial cell separated from the culture, treated microbial cell product of the microbe or a peptide-forming enzyme derived from the microbe.
摘要:
The present invention provides a method for efficiently producing a β-alanyl-amino acid (e.g., carnosine) or derivative thereof. Specifically, it provides a method for producing a β-alanyl-amino acid (e.g., β-alanyl-histidine) or derivative thereof, by reacting a β-alanyl ester or a β-alanyl amide and an amino acid or derivative thereof in the presence of an enzyme or an enzyme-containing product that has an ability to form the β-alanyl-amino acid (e.g., β-alanyl-histidine) or derivative thereof from the β-alanyl ester or the β-alanyl amide and the amino acid (e.g., histidine) or derivative thereof. The present invention also provides a protein which is able to catalyze production of a β-alanyl-amino acid or derivative thereof from a β-alanyl ester or a β-alanyl amide and an amino acid or derivative thereof, and a polynucleotide encoding said protein.
摘要:
A novel protein which has an activity to transport hydantoin compounds is described, as well as a recombinant expressing this transporter protein. From Microbacterium liquefaciens strain AJ3912, a novel gene was discovered to encode a protein which is able to transport hydantoin compounds. A recombinant with an excellent ability to uptake hydantoin compounds is obtained by introducing and expressing the novel gene, called mhp, using gene recombination techniques.
摘要:
A novel protein which has an activity to transport hydantoin compounds is described, as well as a recombinant expressing this transporter protein. From Microbacterium liquefaciens strain AJ3912, a novel gene was discovered to encode a protein which is able to transport hydantoin compounds. A recombinant with an excellent ability to uptake hydantoin compounds is obtained by introducing and expressing the novel gene, called mhp, using gene recombination techniques.
摘要:
The present invention provides a new method for producing serine derivatives and their optically-activated derivatives in a convenient manner. In the presence of an enzyme, an L-α-amino acid of formula (I): (in the formula (I), R1 is a hydrocarbon group) is reacted with an aldehyde of formula (II): (in the formula (II), R2 is a hydrocarbon) to produce an L-serine derivative of formula (III).
摘要:
DNA and recombinant DNA that encode a peptide-forming enzyme, a method for producing a peptide-forming enzyme, and a method for producing a dipeptide are disclosed. A method for producing a dipeptide includes producing a dipeptide from a carboxy component and an amine component by using a culture of a microbe belonging to the genus Sphingobacterium and having the ability to form the dipeptide from the carboxy component and the amine component, a microbial cell separated from the culture, treated microbial cell product of the microbe or a peptide-forming enzyme derived from the microbe.