摘要:
The present invention provides a modified promoter, an expression vector and a transformant each containing the promoter, and a method for producing a gene product of interest using the transformant. The invention provides a modified promoter, including a nucleotide sequence of a promoter derived from bacterium belonging to the genus Bacillus in which at least one nucleotide sequence selected from the following has been modified: a nucleotide sequence represented by SEQ ID NO: 1; a nucleotide sequence equivalent to the nucleotide sequence represented by SEQ ID NO: 1, except that one or a plurality of bases therein are substituted, deleted, added or inserted; and a nucleotide sequence having a sequence identity of 70% or more with respect to the nucleotide sequence represented by SEQ ID NO: 1.
摘要翻译:本发明提供一种修饰的启动子,表达载体和各自含有启动子的转化体,以及使用该转化体产生感兴趣的基因产物的方法。 本发明提供一种修饰的启动子,其包含来源于属于芽孢杆菌属的细菌的启动子的核苷酸序列,其中至少一个选自以下的核苷酸序列已被修饰:由SEQ ID NO:1表示的核苷酸序列; 与SEQ ID NO:1所示的核苷酸序列相当的核苷酸序列,除了其中一个或多个碱基被取代,缺失,添加或插入; 和相对于由SEQ ID NO:1表示的核苷酸序列具有70%以上的序列同一性的核苷酸序列。
摘要:
The present invention provides a modified promoter, an expression vector and a transformant each containing the promoter, and a method for producing a gene product of interest using the transformant. The invention provides a modified promoter, including a nucleotide sequence of a promoter derived from bacterium belonging to the genus Bacillus in which at least one nucleotide sequence selected from the following has been modified: a nucleotide sequence represented by SEQ ID NO: 1; a nucleotide sequence equivalent to the nucleotide sequence represented by SEQ ID NO: 1, except that one or a plurality of bases therein are substituted, deleted, added or inserted; and a nucleotide sequence having a sequence identity of 70% or more with respect to the nucleotide sequence represented by SEQ ID NO: 1.
摘要翻译:本发明提供一种修饰的启动子,表达载体和各自含有启动子的转化体,以及使用该转化体产生感兴趣的基因产物的方法。 本发明提供一种修饰的启动子,其包含来源于属于芽孢杆菌属的细菌的启动子的核苷酸序列,其中至少一个选自以下的核苷酸序列已被修饰:由SEQ ID NO:1表示的核苷酸序列; 与SEQ ID NO:1所示的核苷酸序列相当的核苷酸序列,除了其中一个或多个碱基被取代,缺失,添加或插入; 和相对于由SEQ ID NO:1表示的核苷酸序列具有70%以上的序列同一性的核苷酸序列。
摘要:
A recombinant microorganism having improved productivity for a protein or a polypeptide, and a method for producing a protein or a polypeptide using the recombinant microorganism, are provided. A recombinant microorganism obtained by transfecting a gene for encoding a desired protein or polypeptide into a microorganism strain which is obtained by genetically constructing to overexpress secY gene of Bacillus subtilis or a gene corresponding to the secY gene, and deleting or inactivating one or more genes selected from sporulation-associated genes and genes corresponding to the sporulation-associated genes from the genome.
摘要:
Provision of a recombinant microorganism which has increased productivity of a protein or polypeptide of interest and a method for producing a protein or polypeptide of interest using the recombinant microorganism. The recombinant microorganism is produced by transferring a gene encoding a protein or polypeptide of interest to a microorganism strain, wherein the microorganism strain is prepared by: introducing a transcription initiation regulatory region that functions in the microorganism or both the transcription initiation regulatory region and a ribosome-binding site that functions in the microorganism into the upstream of a Bacillus subtilis prsA gene or a gene corresponding thereto in the genome of a parental microorganism, or introducing a gene fragment prepared by ligating a transcription initiation regulatory region that functions in the microorganism or both the transcription initiation regulatory region and a ribosome-binding site that functions in the microorganism to the upstream of the Bacillus subtilis prsA gene or a gene corresponding thereto into the genome of a parental microorganism; and deleting or inactivating one or more genes selected from an abrB gene, a dltA gene, a dltB gene, a dltC gene, a dltD gene, a dltE gene, and a gene (genes) corresponding thereto.
摘要:
This invention relates to deodorant agents, which contain ginkgo or Phellodendron Bark or its extract as an active ingredient.According to the present invention, deodorant agents which are high in safety and can radically inhibit the emission of human body malodors typified by sweat odor, especially, axillary odor.
摘要:
The present invention provides a DNA fragment encoding alkaline liquefying α-amylase, recombinant DNA containing the DNA fragment, a transformed microorganism harboring the recombinant DNA, as well as a method for producing alkaline liquefying α-amylase using the transformant. The method of the present invention enables mass production of alkaline liquefying α-amylase useful as a detergent component.The present invention is directed to a liquefying alkaline alphα-amylase, and a DNA encoding for the same and functional fragments thereof.
摘要:
The invention contemplates drugs useful for maintenance or promotion at sites of regenerating nerves and for prevention or treatment of pathological conditions caused by denaturation or cell damage in the nervous system. Thus, the invention provides an apolipoprotein D degradation inhibitor containing lauric acid or oleic acid as an active ingredient.
摘要:
A method of modifying a target region in a host DNA using a donor DNA: wherein the donor DNA having regions homologous to a 5′-side region outside of the target region in the host DNA, a 3′-side region outside of the target region in the host DNA and a first homologous recombination region inside of the target region in the host DNA, respectively, in this order, and further having a first selectable marker gene, an expression-inducing promoter and a second selectable marker gene expressed under the control of the expression-inducing promoter between the region homologous to the 3′-side region and the region homologous to the first homologous recombination region; which method has the steps of: a first step of performing homologous recombination between the donor DNA and the host DNA at the regions of the 5′-side region and the first homologous recombination region, to conduct selection of a host integrated with the donor DNA based on expression of the first selectable marker gene; and a second step of performing homologous recombination, within the host DNA integrated with the donor DNA by the first step, between two regions of the 3′-side region derived from the host DNA and the 3′-side region derived from the donor DNA, to conduct selection of a host whose target region is modified based on expression of the second selectable marker gene under an expression-inducing condition for the expression-inducing promoter: and a selectable marker cassette for use in the method.
摘要:
The present invention provides a DNA fragment encoding alkaline pullulanase exhibiting alkaline &agr;-amylase activity, alkaline &agr;-amylase possessing both an amino acid sequence described in SEQ ID NO:3 and a DNA fragment encoding the amylase, alkaline pullulanase possessing both an amino acid sequence described in SEQ ID NO:4 and a DNA fragment encoding the pullulanase, recombinant DNAs containing these DNA fragments, and transformed microorganisms harboring the recombinant DNAs. The technique of the present invention enables mass production of alkaline pullulanase exhibiting alkaline &agr;-amylase activity.
摘要翻译:本发明提供了编码具有碱性α-淀粉酶活性的碱性支链淀粉酶的DNA片段,具有SEQ ID NO:3所示的氨基酸序列的碱性α-淀粉酶和编码具有氨基酸序列的淀粉酶,碱基支链淀粉酶的DNA片段 和编码支链淀粉酶的DNA片段,含有这些DNA片段的重组DNA和含有重组DNA的转化微生物。 本发明的技术能够大量生产显示碱性α-淀粉酶活性的碱性支链淀粉酶。
摘要:
The present invention relates to a liquefying alkaline .alpha.-amylase having the enzymatic properties described below, a production process thereof and a detergent composition containing the same.1) Action:It hydrolyzes .alpha.-1,4-glucosidic linkages in starches, amylose, amylopectin and partial degradation products thereof and from amylose, forms glucose (G1), maltose (G2), maltotriose (G3), maltotetraose (G4), maltopentaose (G5) and maltohexaose (G6). It however does not act on pullulan.2) Isoelectric point:It has an isoelectric point higher than 8.5 when measured by an isoelectric focusing electrophoresis.The amylase according to the present invention has a liquefying activity capable of permitting degrading starches and starchy polysaccharides at high random, and has an optimum pH on the alkaline side. Owing to the high isoelectric point, it can be purified readily. Detergents with the amylase incorporated therein have excellent detergency especially against the soil of smeared food.