摘要:
The present invention aims at providing an excellent peptide-synthesizing protein and a method for efficiently producing a peptide. The peptide is synthesized by reacting an amine component and a carboxy component in the presence of at least one of proteins shown in the following (I) and (II).(I) The mutant protein having an amino acid sequence comprising one or more mutations from any of the mutations 1 to 68, and the mutations 239 to 290 and 324 to 377 in an amino acid sequence of SEQ ID NO:2.(II) The mutant protein having an amino acid sequence comprising one or more mutations from any of the mutations L1 to L335 and M1 to M642 in an amino acid sequence of SEQ ID NO:208
摘要翻译:本发明的目的在于提供优异的肽合成蛋白质和有效生产肽的方法。 在下列(I)和(II)所示的至少一种蛋白质存在下,使胺组分和羧基组分反应合成肽。 (I)具有包含SEQ ID NO:2的氨基酸序列中的任何突变1至68和突变239至290和324至377的一个或多个突变的氨基酸序列的突变蛋白。 (II)具有包含SEQ ID NO:208的氨基酸序列中的任何突变L1至L335和M1至M642的一个或多个突变的氨基酸序列的突变蛋白
摘要:
The present invention provides a method for producing L-fuculose and L-fucose which is suitable as an industrial method. L-Fuculose is synthesized from L-fucitol in the presence of a microorganism-derived protein having a dehydrogenase activity which results in production of L-fuculose from L-fucitol. The reaction system preferably contains NADH oxidase. L-Fuculose thus synthesized is then converted into L-fucose.
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 set forth in SEQ ID NO:1 in the Sequence. 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 set forth in SEQ ID NO:3 in the Sequence.
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,其具有序列中SEQ ID NO:1所示的核苷酸序列。 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所示的核苷酸序列 序列。
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 set forth in SEQ ID NO:1 in the Sequence. 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 set forth in SEQ ID NO:3 in the Sequence.
摘要:
The present invention is to provide an excellent peptide-synthesizing protein and a method for efficiently producing a peptide. A peptide is synthesized by reacting an amine component and a carboxy component in the presence of at least one of proteins shown in the following (I) and (II): (I) The mutant protein having the amino acid sequence containing one or more mutations of the above mutations 1 to 38 in the amino acid sequence described in SEQ ID NO:2; and (II) The mutant protein having the amino acid sequence containing one or more mutations selected from the group consisting of substitution, deletion, insertion, addition and inversion at positions other than one or more mutation positions of the above mutation 1 to 38 in the mutant protein described in the above (I), and having a peptide-synthesizing activity.
摘要翻译:本发明提供优异的肽合成蛋白质和有效生产肽的方法。 在下列(I)和(II)所示的至少一种蛋白质的存在下,使胺组分和羧基组分反应合成肽:(I)具有含有一个或多个突变的氨基酸序列的突变蛋白 在SEQ ID NO:2中描述的氨基酸序列中的上述突变1至38; 和(II)具有在上述变异株1〜38中的一个以上突变位置以外的位置上具有选自取代,缺失,插入,添加和倒位的一个或多个突变的氨基酸序列的突变蛋白质 上述(I)所述的突变型蛋白质,具有肽合成活性。
摘要:
In a nuclear power plant, a corrosion-resistant oxide film on a surface of the metal component of a reactor structure is exposed to a high-temperature water, the corrosion-resistant oxide film containing an oxide having a property of a P-type semiconductor, and a catalytic substance having a property of an N-type semiconductor is deposited on the oxide film. The oxide film maintains the property of the P-type semiconductor.
摘要:
Xylitol is produced by allowing xylitol dehydrogenase or cells instoduced with a DNA coding for xylitol dehydrogenase, which is a protein of the following (A) or (B) to act on D-xylulose, and collecting produced xylitol: (A) a protein which has the amino acid sequence of SEQ ID NO: 4; (B) a protein which has the amino acid sequence of SEQ ID NO: 4 including substitution, deletion, insertion, addition, or inversion of one or several amino acids, and has xylitol dehydrogenase activity.
摘要翻译:通过使木糖醇脱氢酶或用编码木糖醇脱氢酶的DNA(其是以下(A)或(B)的蛋白质)作用于D-木酮糖并收集产生的木糖醇的DNA产生木糖醇:(A) 具有SEQ ID NO:4的氨基酸序列;(B)具有SEQ ID NO:4的氨基酸序列的蛋白质,包括一个或几个氨基酸的取代,缺失,插入,添加或倒位,并且具有木糖醇 脱氢酶活性。
摘要:
A method for processing a protein, a non-proteinaceous amino acid polymer, or a non-proteinaceous amino acid polymer, or a peptide or derivatives thereof having a crosslinked structure, which entails contacting glutamine and lysine residues in a protein, a non-proteinaceous amino acid polymer, a peptide or derivatives thereof with a transglutaminase obtained from Bacillus subtilus to form intermolecular or intramolecular, crosslinked .epsilon.(.delta.-Glu)-Lys bonds between or in the molecules of the protein, non-proteinaceous amino acid polymer, peptide or derivatives thereof, wherein the transglutaminase has the physicochemical properties described herein.
摘要:
A semiconductor memory has at least a pair of bit lines, a plurality of word lines crossing the pair of bit lines, a pair of dummy word lines crossing the pair of bit lines, memory cells arranged at intersections between the bit lines and the word lines, dummy cells arranged at intersections between any the bit lines and the dummy word lines, a sense amplifier connected to the pair of bit lines, and a means for equalizing the potentials of the pair of bit lines. Each of the memory cell has a transistor and a capacitor. Each dummy cell has the same construction as each memory cell. The pair of bit lines and dummy cell capacitors are electrically connected at a predetermined timing and are set at a third voltage, the corresponding dummy cell is disconnected from one of the bit line pair, to which a selected memory cell capacitor is connected. Subsequently, a voltage difference between voltages on the bit lines is detected.
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.