摘要:
An enzyme capable of reducing the antibiotic activity (i.e., toxicity) of streptothricin with respect to eukaryotic cells without sacrificing antibiotic activity with respect to prokaryotic cells is provided along with a streptothricin derivative having reduced toxicity with respect to eukaryotic cells while retaining antibiotic activity with respect to prokaryotic cells, and a manufacturing method thereof. By opening the lactam ring of streptothricin, a protein having the amino acid sequence according to SEQ ID NO: 2, 4, 6, 8, 10, 12, 14 or 16 of the invention can reduce the antibiotic activity of streptothricin D with respect to eukaryotic cells without sacrificing antibiotic activity with respect to prokaryotic cells.
摘要翻译:提供能够降低链霉素相对于真核细胞的抗生素活性(即毒性)而不牺牲相对于原核细胞的抗生素活性的酶以及相对于真核细胞毒性降低的链球菌素衍生物,同时保持抗生素活性 原核细胞及其制造方法。 通过打开链霉素的内酰胺环,具有根据本发明的SEQ ID NO:2,4,6,8,10,12,14或16的氨基酸序列的蛋白质可以降低链球菌D的抗生素活性,相对于 真核细胞,而不牺牲相对于原核细胞的抗生素活性。
摘要:
L-cysteine is produced by culturing an Escherichia bacterium having L-cysteine producing ability and containing a gene encoding an O-acetylserine sulphydrylase B or MalY regulatory protein that is modified so that cysteine desulfhydrase activity is reduced or eliminated. The bacterium is cultured in a medium to produce and cause accumulation of L-cysteine in the medium, and collecting L-cysteine from the medium.
摘要:
L-cysteine is produced by culturing an Escherichia bacterium having L-cysteine producing ability and containing a gene encoding an O-acetylserine sulphydrylase B or MalY regulatory protein that is modified so that cysteine desulfhydrase activity is reduced or eliminated. The bacterium is cultured in a medium to produce and cause accumulation of L-cysteine in the medium, and collecting L-cysteine from the medium.
摘要:
Disclosed is a process for manufacturing an aluminum support for a light sensitive planographic printing plate material, the process comprising the steps of surface-roughening an aluminum plate, anodizing the surface-roughened aluminum plate, surface treating the anodized aluminum plate with an aqueous polyvinyl phosphonic acid solution, and drying the resulting plate at from 150 to 230° C. to obtain the aluminum support.
摘要:
A peptide according to the present invention is selected from the group consisting of: (a) a peptide having the amino acid sequence represented by SEQ ID NO: 1; (b) a peptide having a modified amino acid sequence of the amino acid sequence described in (a) above, in which one or more amino acid residues are deleted, substituted, inserted or added, and having cell death-preventing activity and/or cell growth-promoting activity; and (c) a peptide which has an amino acid sequence having at least 80% homology with the peptide consisting of the amino acid sequence described in (a) above and has cell death-preventing activity and/or cell growth-promoting activity. The peptide has cell death-preventing activity and/or cell growth-promoting activity, is highly safe, and can be produced without difficulty. The peptide is useful as a culture supplement or as an effective component for a cell culture medium.
摘要翻译:根据本发明的肽选自:(a)具有由SEQ ID NO:1表示的氨基酸序列的肽; (b)具有上述(a)中所述的氨基酸序列的修饰氨基酸序列的肽,其中一个或多个氨基酸残基被缺失,取代,插入或添加并具有细胞死亡预防活性和/或 细胞生长促进活性; 和(c)具有与由上述(a)中所述的氨基酸序列组成的肽具有至少80%同源性的氨基酸序列并具有细胞死亡预防活性和/或细胞生长促进活性的肽。 肽具有细胞死亡预防活性和/或细胞生长促进活性,是高度安全的,可以毫无困难地制备。 该肽可用作培养物补充物或作为细胞培养基的有效成分。
摘要:
An object of the invention is to provide a planographic printing plate material exhibiting excellent dot reproduction and printing durability and a support for the planographic printing plate material. Disclosed is a support for a planographic printing plate material having a surface roughened via electrolytic surface-roughening treatment and anodization treatment conducted to one surface of an aluminum plate, wherein a) average surface roughness (Ra) of the roughened surface is 0.30-0.55 μm, and b) the roughened surface possesses a surface profile in which a ratio of Xa/Xb is 0.40-0.70, where Xa is the width expanding to the shallow region side and Xb is the width expanding to the deep region side at the position reaching peak depth in amplitude frequency.
摘要:
Disclosed is a process for manufacturing an aluminum support for a light sensitive planographic printing plate material, the process comprising the steps of surface-roughening an aluminum plate, anodizing the surface-roughened aluminum plate, surface treating the anodized aluminum plate with an aqueous polyvinyl phosphonic acid solution, and drying the resulting plate at from 150 to 230 ° C. to obtain the aluminum support.
摘要:
L-Cysteine is produced by culturing a microorganism having an ability to produce L-cysteine and modified so that expression of emrAB, emrKY, yojIH, acrEF, bcr, or cusA gene should be enhanced in a medium to produce and accumulate L-cysteine in the medium and collecting the L-cysteine from the medium. Genes coding for novel L-cysteine-excreting proteins are identified, and utilized for breeding of L-cysteine-producing microorganism to provide a novel method of producing L-cysteine.
摘要:
In an image display apparatus capable of storing therein a small amount of images and also capable of displaying two sorts, or more of images within a short time period, an axial image 1, a sagittal image 2, and a coronal image 3, which are loaded from a magnetic disk, are displayed on a CRT monitor 117. Image position indication FIGS. 4, 5, 6 are indicated above the respective tomographic images, and positions of the respective tomographic images are indicated on the respective image position indication FIGS. 4, 5, 6 by employing heavy lines 4a, 5a, 6a, and triangular symbols 4b, 5b, 6b. The positions of the tomographic images can be adjusted by dragging the respective triangular symbols 4b, 5b, 6b by using a mouse 118. Image position input FIGS. 7, 8, 9 are indicated under the respective tomographic images, and the positions of the respective displayed tomographic images are indicated on the image position input FIGS. 7, 8, 9 by way of drag bars 7a, 8a, 9a. Alternatively, the positions of the tomographic images may be adjusted by dragging the drag bars 7a, 8a, 9a by using the mouse 118.
摘要:
A holder sleeve (1) incorporates an urging means (8) for urging an inner needle (12) to the proximal end side and an actuator (6) which engages the inner needle (12) at the near distal end portion of the holder sleeve (1) so that the inner needle (12) can be released and the tip of the inner needle is projected from the holder sleeve (1). This actuator (6) has an inner needle hub (12a) fixed at the front end thereof and is formed with an actuating member (6a) projected outside the holder sleeve (1). The holder sleeve (1) has a slit (2) which extends to the proximal end side so as to allow the actuating member (6a) of the actuator (6) to slide and assures the path of movement of the actuator (6) released from the near distal end portion of the holder sleeve (1). The inner needle (12) is adapted to be released from the holder sleeve (1) when the actuating member (6a) is moved away from the holder sleeve (1) within the same plane that includes the axis of the holder sleeve (1).