摘要:
The present invention provides a process for producing 7-aminocephem compounds or salts thereof. 7-Aminocephem compounds are produced via microorganisms transformed with a vector containing a gene capable of converting a cephalosporin compound of the formula (II): ##STR1## to a 7-aminocephem compound of the formula (I): ##STR2##
摘要:
A cephalosporin C acylase from Pseudomonas diminuta N-176 is disclosed as well as the recombinant production of this enzyme in E. coli. The enzyme is characterized by the ability to catalyze the conversion of cephalosporin C, gultaryl 7-ACA, apidyl 7-ACA, succinyl 7-ACA, N-acetylcephalosporin C, N-benzoylcephalosporin C, and cephalothin into 7-aminocephalosporanic acid and is composed of an .alpha.-subunit with a molecular weight of 26,000 daltons and a .beta.-subunit with a molecular weight of 58,000 daltons.
摘要:
A cephalosporin C acylase from Pseudomonas diminuta N-176 is characterized by its ability to catalyze the conversion of cephalosporin C, glutaryl 7-ACA, adipyl 7-ACA, succinyl 7-ACA, N-acetylcephalosporin, N-benzoylcephalosporin C and cephalothin into 7-aminocephalosporanic acid. The enzyme contains an .alpha.-subunit having a molecular weight of 26 kDA and a .beta.-subunit having a molecular weight of 58 kDa. A method for the recombinant production of the present cephalosporin C acylase in Escherichia coli is provided.
摘要:
A GL-7ACA acylase having the following characteristics:(a) has ability to catalyze the enzymatic conversion of glutaryl 7-ACA, adipyl 7-ACA, and succinyl 7-ACA, into 7-aminocephalosporanic acid,(b) has a molecular weight of 70,000 dalton (SDS-PAGE) and(c) has N-terminal amino acid sequence (SEQ ID NO: 1) thereof: Gln-Ser-Glu-Gln-Glu-Lys-Ala-Glu-Glu-.A process for producing GL-7ACA acylase is also provided.
摘要翻译:具有以下特征的GL-7ACA酰基转移酶:(a)具有催化戊二酰7-ACA,己二酰基7-ACA和琥珀酰基7-ACA酶促转化成7-氨基头孢烷酸的能力,(b)具有分子量 的70,000道尔顿(SDS-PAGE)和(c)具有N-末端氨基酸序列(SEQ ID NO:1):Gln-Ser-Glu-Gln-Glu-Lys-Ala-Glu-Glu-。 还提供了生产GL-7ACA酰基转移酶的方法。
摘要:
A GL-7ACA acylase having the following characteristics:(a) has ability to catalyze the enzymatic conversion of glutaryl 7-ACA, adipyl 7-ACA, and succinyl 7-ACA, into 7-aminocephalosporanic acid,(b) has a molecular weight of 70,000 dalton (SDS-PAGE) and(c) has N-terminal amino acid sequence (sea in No: 1) thereof: Gln-Ser-Glu-Gln-Glu-Lys-Ala-Glu-Glu-.A process for producing GL-7ACA acylase is also provided.
摘要:
The invention relates to a novel method for selecting an immunosuppressive agent with a less thrombocytopenia effect. According to the invention, a method for selecting an immunosuppressive agent which has a potent immunosuppressive activity but a lower thrombocytopenia effect, said method comprising measuring an IL-2 transcription inhibitory activity in a test cell in to which an IL-2 reporter gene has been introduced in the coexistence of an analyte, while measuring a GATA-1 transcription inhibitory activity in the test cell into which a GATA-1 reporter gene has been introduced in the coexistence of an analyte, and comparing both the transcription inhibitory activities, is provided.
摘要:
It is intended to provide a method for evaluating a pharmacological effect of a histone deacetylase (HDAC) inhibitor, comprising the steps of: (a) preparing a cell expressing CPSF5 protein; (b) contacting the cell with an HDAC inhibitor; (c) measuring the acetylation level of CPSF5 protein in the cell; and (d) comparing the acetylation level measured in the step (c) with the measured acetylation level of CPSF5 protein in a control cell that has not been contacted with the HDAC inhibitor.
摘要:
The present invention provides a method of selecting an IL-2 production inhibitor and/or an immunocyte proliferation inhibitor having low GATA-1 production inhibitory activity, which comprises measuring the HDAC4 and/or HDAC8 inhibitory activity of a test substance, and a method of selecting an immunosuppressant having low thrombocytopenic activity, which comprises measuring the HDAC4 and/or HDAC8 inhibitory activity of a test HDAC inhibitor.