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    • 2. 发明授权
    • Process for enzymatic replacement of the B-30 amino acid in insulins
    • 在胰岛素中酶代替B-30氨基酸的方法
    • US4645740A
    • 1987-02-24
    • US364856
    • 1982-03-23
    • Klaus BreddamJack T. JohansenFred Widmer
    • Klaus BreddamJack T. JohansenFred Widmer
    • C12P21/02A61K38/28C07K1/36C07K14/62C12P20060101C12P21/04C12P21/06
    • C07K14/62
    • The B-30 amino acid in insulins is replaced enzymatically byreacting as substrate component the selected insulin Ins-X, wherein X represents the B-30 amino acidwith an amine component selected from the group consisting of(a) amino acids of the formulaH--B--OHwherein B is an amino acid residue,(b) optionally N-substituted amino acid amides of the formulaH--B--NR.sup.1 R.sup.2wherein B is an amino acid residue and R.sup.1 and R.sup.2 are independently selected from the group consisting of hydrogen, amino, hydroxy, alkyl, cycloalkyl, aryl, heteroaryl and aralkyl or R.sup.1 and R.sup.2 together with the nitrogen atom form a heterocyclic group which may contain a further hetero atom, and(c) amino acid esters of the formulaH--B--OR.sup.3, H--B--SR.sup.3 or H--B--SeR.sup.3wherein B is am amino acid residue and R.sup.3 represents alkyl, cycloalkyl, aryl, heteroaryl or aralkylin the presence of an L-specific serine or thiol carboxypeptidase enzyme, preferably carboxypeptidase-Y, in an aqueous solution or dispersion having a pH from about 7 to 10.5, thereby to form an insulin derivativeIns--B--OH, Ins--B--NR.sup.1 R.sup.2, Ins--B--B--NR.sup.1 R.sup.2,Ins--B--OR.sup.3, Ins--B--SR.sup.3 or Ins--B--SeR.sup.3and subsequently cleaving a group --NR.sup.1 R.sup.2, --B--NR.sup.1 R.sup.2, --OR.sup.3, --SR.sup.3 or SeR.sup.3, if desired, preferably by using a carboxypeptidase enzyme. The cleaving may also be performed on derivatives obtained by other methods.By using porcine insulin as substrate component and threonine as the amino acid forming part of the amine component human insulin is obtained.
    • PCT No.PCT / DK81 / 00074 Sec。 371日期1982年3月23日 102(e)1982年3月23日PCT PCT 1981年7月23日PCT公布。 公开号WO82 / 00301 1982年2月4日。胰岛素中的B-30氨基酸通过以选择的胰岛素Ins-X作为底物组分反应来代替酶,其中X代表B-30氨基酸与选自( a)式HB-OH的氨基酸,其中B是氨基酸残基,(b)式HB-NR1R2的任选N-取代的氨基酸酰胺,其中B是氨基酸残基,R 1和R 2独立地选自 由氢,氨基,羟基,烷基,环烷基,芳基,杂芳基和芳烷基或R1和R2与氮原子一起组成的基团可以含有另外的杂原子的杂环基,和(c)式HB的氨基酸酯 -OR3,HB​​-SR3或HB-SeR3,其中B是氨基酸残基,R3表示烷基,环烷基,芳基,杂芳基或芳烷基,在L-特异性丝氨酸或硫羟羧肽酶,优选羧肽酶-Y存在下, 水溶液或分散体具有a pH为约7至10.5,从而形成胰岛素衍生物Ins-B-OH,Ins-B-NR1R2,Ins-BB-NR1R2,Ins-B-OR3,Ins-B-SR3或Ins-B-SeR3,随后 如果需要,优选通过使用羧肽酶来切割基团-NR1R2,-B-NR1R2,-OR3,-SR3或SeR3。 裂解也可以通过其它方法获得的衍生物进行。 通过使用猪胰岛素作为底物组分和苏氨酸作为形成胺组分的一部分的氨基酸,得到人胰岛素。
    • 10. 发明授权
    • Process for enzymatic production of peptides
    • 酶的生产方法
    • US4339534A
    • 1982-07-13
    • US136661
    • 1980-04-02
    • Jack T. JohansenFred Widmer
    • Jack T. JohansenFred Widmer
    • C07K5/062A61K38/00C07C20060101C07K1/02C07K1/06C07K5/06C07K5/072C07K5/078C07K5/083C07K5/087C07K5/103C07K7/04C07K11/00C12P20060101C12P21/00C12P21/02C12P21/04C12R1/66C12R1/80C12R1/91
    • C07K5/06165C07K1/02C07K5/06026C07K5/06095C07K5/0806C07K5/0812C07K5/1008C12P21/02A61K38/00Y02P20/55
    • A peptide having the formulaA--Bwherein A represents an N-terminal protected amino acid residue or an optionally N-terminal protected peptide residue and B represents an optionally C-terminal protected amino acid residue, is prepared byreacting a substrate component selected from the group consisting of(a) amino acid esters, peptide esters and depsipeptides of the formulaA--OR.sup.1 or A--SR.sup.1 wherein A is as defined above and R.sup.1 represents alkyl, aryl, aralkyl or an .alpha.-des-amino fragment of an amino acid residue,(b) optionally N-substituted amino acid amides and peptide amides of the formulaA--NHR.sup.2 wherein A is as defined above and R.sup.2 represents hydrogen, alkyl, aryl or aralkyl, and(c) optionally N-terminal protected peptides of the formulaA--X wherein A is as defined above and X represents an amino acidwith an amine component selected from the group consisting of(a) amino acids of the formulaH--B--OH,(b) optionally N-substituted amino acid amides of the formulaH--B--NHR.sup.3 wherein B is an amino acid residue and R.sup.3 represents hydrogen, hydroxy, amino or alkyl, aryl or aralkyl, and(c) amino acid esters of the formulaH--B--OR.sup.4 or H--B--SR.sup.4 wherein B is an amino acid residue and R.sup.4 represents alkyl, aryl and aralkyl,in the presence of a carboxypeptidase enzyme in an aqueous solution or dispersion having a pH from 5 to 10.5, preferably at a temperature of from 20.degree.to 50.degree. C., to form a peptide, and subsequently cleaving a group R.sup.3 or R.sup.4 or an N-terminal protective group, if desired.
    • 具有式AB的肽,其中A表示N-末端保护的氨基酸残基或任选的N-末端保护的肽残基,B表示任选C末端保护的氨基酸残基,是通过使选自下组的底物组分: 包括(a)式A-OR1或A-SR1的氨基酸酯,肽酯和缩肽,其中A如上所定义,R 1表示氨基酸残基的烷基,芳基,芳烷基或α-脱氨基片段 ,(b)任选的N-取代的氨基酸酰胺和式A-NHR2的肽酰胺,其中A如上所定义,R 2表示氢,烷基,芳基或芳烷基,和(c)任选的N-末端保护的式 AX,其中A如上所定义,X表示具有选自下列的胺组分的氨基酸:(a)式HB-OH的氨基酸,(b)式为HB-OH的N-取代氨基酸酰胺, NHR3其中B 是氨基酸残基,R 3表示氢,羟基,氨基或烷基,芳基或芳烷基,和(c)式HB-OR4或HB-SR4的氨基酸酯,其中B是氨基酸残基,R4代表烷基,芳基 和芳烷基,在羧基肽酶存在下,在pH为5至10.5,优选温度为20至50℃的水溶液或分散体中形成肽,随后将基团R3或 R4或N端保护基团。