摘要:
A recombinant DNA molecule comprising a plasmid vector having operationally inserted therein a gene coding for homoserine kinase is disclosed along with bacteria containing this recombinant DNA molecule and methods of using these bacteria to produce amino acids in large quantities.
摘要:
An exhaust hole is formed in an exhaust side wall of a mist atomizing nozzle of an apparatus for spraying the mist for cooling for and is used in continuous metal casting. An introduction inlet is provided in an introducing side wall on the side opposite the exhaust side wall at the height position different from that of the exhaust hole. An air-water mixture supply pipe is attached to the introduction inlet to communicate therewith. The air-water mixture of relatively large water droplets is formed and is introduced into the mist atomizing nozzle by that air-water mixture supply pipe. After the air-water mixture repeatedly collides in the mist atomizing nozzle, the large water droplets are made fine and are sequentially exhausted from the exhaust hole by being pressed by the supply pressure from the rear side.
摘要:
An apparatus for axial transverse tomography using piercing radiation such as X-ray and .gamma.-ray for displaying a tomographic image concerning variation of radiation absorption values at a given section of a subject under examination, comprising: a scanner effecting a revolution-scanning around said subject at uniform angles while maintaining constant relative positions of a radiation source and a radiation detector with said subject intervening therebetween; an input device for setting a region of interest for being enlarged based on parameters of central angle, inter-center distance and radius ratio, to locally enlarge said tomographic image; co-ordinate system transforming circuitry for carrying out, on information within said region of interest outputted from radiation detector, a transformation of co-ordinate system corresponding to enlarged co-ordinates, from information obtained by the scanner and outputted by the radiation detector and also from the set parameters; and convolution circuitry for carrying out a convolution operation on the resulting information representing the trnsformation of co-ordinate system.
摘要:
An optical element has a first surface, a second surface on the opposite side of the first surface, an optical surface, and a protruding part. The protruding part is held in a prescribed position by being in contact with a holding member. The protruding part comprises a first protruding part and a second protruding part, The first protruding part comprises a first contact part that is a convex circular arc shape on at least one longitudinal plane and partly comes into contact with the holding member. The second protruding part comprises a second contact part that is a convex circular arc shape on at least one longitudinal plane and partly comes into contact with the holding member. A circular arc constitutes the first contact part and a circular arc that constitutes the second contact part are present in at least one cross-section that passes through a contact point between the first contact part and the holding member as well as a contact point between the second contact part and the holding member, and the center of the circular arc that constitutes the first contact part is aligned with the center of the circular arc that constitutes the second protruding part.
摘要:
There is provided an information processing device including a device information acquisition unit configured to acquire information on other devices connected via a network, and a setting file creation unit configured to, on the basis of the information on the other devices acquired by the device information acquisition unit, create a setting file by causing the information processing device to describe in the setting file information on content that is managed by the information processing device, the setting file being adapted to be forwarded to the other devices. The setting file creation unit describes in the setting file an order in which the setting file is to be forwarded.
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:
An objective of the present invention is to provide a new protein derived from the silkworm middle silk gland and a DNA encoding said protein. The present invention relates to a protein of the following (a) or (b): (a) a protein comprising the amino acid sequence represented by SEQ ID NO: 1; (b) a protein comprising 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 protease activity.
摘要翻译:本发明的目的是提供一种来自蚕丝绸的新蛋白质和编码所述蛋白质的DNA。 本发明涉及以下(a)或(b)的蛋白质:(a)包含SEQ ID NO:1所示的氨基酸序列的蛋白质; (b)包含上述(a)中描述的氨基酸序列的修饰氨基酸序列的蛋白质,其中一个或多个氨基酸残基被缺失,取代,插入或添加并具有蛋白酶活性。
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:
A process for manufacturing an aluminum support for a planographic printing plate material, the process containing the steps of: (a) electrolytically surface-roughening an aluminum plate in an electrolyte solution containing hydrochloric acid as a main component; and (b) anodizing the surface-roughened aluminum plate, wherein the step (a) contains: (i) a first stage which surface-roughens the aluminum plate employing a sine-wave alternating current; and (ii) a second stage which surface-roughens the aluminum plate employing a controlled sine-wave alternating current using a thyristor so that a current flow starts at a phase angle of 60 to 120 degree of an alternating current cycle.
摘要:
L-cysteine is produced by culturing a coryneform bacterium in which intracellular serine acetyltransferase activity is increased by transformation with a gene coding for serine acetyltransferase, such modification of an expression control sequence of a gene coding for serine acetyltransferase that expression of the gene in a cell should be enhanced and for forth, preferably in which L-cysteine decomposition system is further suppressed, in a medium to produce and accumulate L-cysteine in culture and collecting the L-cysteine from the culture.