摘要:
This invention provides for a protein of the TGF-β superfamily in which the cysteine involved in the normal formation of homodimers is changed to another amino acid. These mutant proteins, as monomers, display higher bone morphogenetic activity than the wild-type protein dimers. Also provided is a method for producing and isolating these monomers by plasmid driven expression in various host systems including E. coli. In addition, the invention discloses the use of an agent containing purified monomers in preventing and treating diseases and problems affecting bone and/or cartilage.
摘要:
This invention provides for a protein of the TGF-β superfamily in which the cysteine involved in the normal formation of homodimers is changed to another amino acid. These mutant proteins, as monomers, display higher bone morphogenetic activity than the wild-type protein dimers. Also provided is a method for producing and isolating these monomers by plasmid driven expression in various host systems including E. coli. In addition, the invention discloses the use of an agent containing purified monomers in preventing and treating diseases and problems affecting bone and/or cartilage.
摘要:
This invention provides for a protein of the TGF-β superfamily in which the cysteine involved in the normal formation of homodimers is changed to another amino acid. These mutant proteins, as monomers, display higher bone morphogenetic activity than the wild-type protein dimers. Also provided is a method for producing and isolating these monomers by plasmid driven expression in various host systems including E. coli. In addition, the invention discloses the use of an agent containing purified monomers in preventing and treating diseases and problems affecting bone and/or cartilage.
摘要:
A protein having amino acid sequence in SEQ ID No.:1 of the Sequence Listing derived from human MP52, and a dimer protein thereof. A homodimer protein described above can be obtained by constructing a plasmid containing DNA coding amino acid sequence in SEQ ID No.:1 of the Sequence Listing with a methionine at the N-terminus, introducing the plasmid into E. coli for transformation, solubilizing inclusion bodies obtained by culturing the transformant, purifying the monomer protein from the solubilized solution, refolding the monomer protein into a dimer protein and purifying the same. The homodimer protein described above is useful as a pharmaceutical composition for treating cartilage and bone diseases.
摘要翻译:衍生自人MP52的序列表的SEQ ID No.1中具有氨基酸序列的蛋白质及其二聚体蛋白质。 上述同型二聚体蛋白可以通过在N末端构建含有序列表SEQ ID No.1的DNA编码氨基酸序列的质粒与甲硫氨酸,将质粒导入大肠杆菌进行转化,溶解包合物 通过培养转化体获得的物质,从溶解的溶液中纯化单体蛋白质,将单体蛋白质重折叠成二聚体蛋白质并进行纯化。 上述同型二聚体蛋白质可用作治疗软骨和骨疾病的药物组合物。
摘要:
A protein consisting of the amino acid sequence in SEQ ID No: 1 derived from human MP52 and a homodimer protein thereof useful for treating cartilage and/or bone diseases and a process for its preparation.
摘要翻译:由源自人MP52的SEQ ID No:1的氨基酸序列和用于治疗软骨和/或骨疾病的同二聚体蛋白质组成的蛋白质及其制备方法。
摘要:
A protein having amino acid sequence in SEQ ID NO: 1 of the Sequence Listing derived from human MP52, and a dimer protein thereof. A homodimer protein described above can be obtained by constructing a plasmid containing DNA coding amino acid sequence in SEQ ID NO: 1 of the Sequence Listing with a methionine at the N-terminus, introducing the plasmid into E. coli for transformation, solubilizing inclusion bodies obtained by culturing the transformant, purifying the monomer protein from the solubilized solution, refolding the monomer protein into a dimer protein and purifying the same. The homodimer protein described above is useful as a pharmaceutical composition for treating cartilage and bone diseases.
摘要翻译:衍生自人MP52的序列表的SEQ ID NO:1中具有氨基酸序列的蛋白质及其二聚体蛋白质。 可以通过在N末端构建含有序列表的SEQ ID NO:1的DNA编码氨基酸序列的质粒与甲硫氨酸在N末端引入,将质粒导入大肠杆菌进行转化,从而增溶包涵体 通过培养转化体获得,从溶解的溶液中纯化单体蛋白质,将单体蛋白重折叠成二聚体蛋白质并进行纯化。 上述同型二聚体蛋白质可用作治疗软骨和骨疾病的药物组合物。
摘要:
The purpose is to provide a mature protein having an antagonistic activity against bone morphogenetic proteins. The mature protein having an antagonistic activity against bone morphogenetic proteins is obtained by converting at least one residue among methionine residues or tryptophane residues existing in the amino acid sequence of mature human MP52 (SEQ ID No 1) to a hydrophilic residue by chemical modification, or replacing said residues with a hydrophilic amino acid residue or a polar amino acid residue. The chemical modification for said methionine residue is performed by an oxidization reaction or an alkylation reaction. The chemical modification for said tryptophane residue is performed by an allylsulphenylation reaction. Or a mature protein having an antagonistic activity against bone morphogenetic proteins is obtained by converting at least one residue of tryptophane residues existing in the amino acid sequences of mature human BMP-2 (SEQ ID No 2), mature human BMP-4 (SEQ ID No 3), and mature human BMP-7 (SEQ ID No 4) to a hydrophilic residue by chemical modification, or replacing said residues with a hydrophilic amino acid residue or a polar amino acid residue.
摘要翻译:目的是提供对骨形态发生蛋白具有拮抗作用的成熟蛋白质。 通过化学修饰将成熟人MP52(SEQ ID No.1)的氨基酸序列中存在的甲硫氨酸残基或色氨酸残基中的至少一个残基转化成亲水性残基,获得对骨形态发生蛋白具有拮抗作用的成熟蛋白质,或 用亲水氨基酸残基或极性氨基酸残基取代所述残基。 所述甲硫氨酸残基的化学修饰通过氧化反应或烷基化反应进行。 所述色氨酸残基的化学修饰通过烯丙基苯基化反应进行。 或者通过转化成熟人BMP-2(SEQ ID No 2),成熟人BMP-4(SEQ ID No.2)的氨基酸序列中存在的色氨酸残基的至少一个残基,获得对骨形态发生蛋白具有拮抗活性的成熟蛋白质 No.3)和成熟的人BMP-7(SEQ ID No 4)通过化学修饰与亲水性残基反应,或用亲水氨基酸残基或极性氨基酸残基替代所述残基。
摘要:
The present invention provides a resin composition which can produce a multilayer printed wiring board not causing peeling and crack in a thermal shock test such as a cooling/heating cycle, and having high heat resistance and low-thermal expansion characteristics, when the resin composition is used for an insulating layer of the multilayer printed wiring board; and also an insulating sheet provided on a base, a prepreg, a multilayer printed wiring board and a semiconductor device using thereof. The resin composition is used for forming an insulating layer of the multilayer printed wiring board, wherein a surface roughness parameter Rvk value of the insulating layer is from 0.1 μm to 0.8 μm, measured after the insulating layer being formed with the resin composition, and subject to roughening treatment.
摘要:
A method for preparing a photoreceptor including forming a photosensitive layer overlying an electroconductive substrate; coating a liquid including a radically polymerizable compound to form a protective layer; irradiating the protective layer with light to crosslink the protective layer; and then contacting the protective layer with a fluid, which is selected from the group consisting of supercritical fluids and subcritical fluids and which includes a charge transport material. A photoreceptor prepared by the method. An image forming method, an image forming apparatus and a process cartridge using the photoreceptor.
摘要:
The present invention provides an electrophotographic photoconductor capable of reducing latent electrostatic image stability defects caused by adhesion/adsorption of an electric discharge product formed by a charger in an image forming process, degradation of charge transportability and cleaning defects caused when removing a residual toner. The electrophotographic photoconductor has a conductive substrate, and a photosensitive layer which contains at least a binder, a charge generating material and a charge transporting material and is formed on the substrate, wherein the photosensitive layer contains an injection material composed of at least any one of one wax selected from paraffin waxes, Fisher-Tropsh waxes, polyolefin waxes and a polyorganosiloxane compound in an area from the surface of the photosensitive layer to 50% of the thickness thereof in the thickness direction of the electrophotographic photoconductor, and the content of the injection material is 3% by mass or more to the content of the binder.