Method of producing peptides
    1.
    发明授权
    Method of producing peptides 失效
    生产肽的方法

    公开(公告)号:US5369018A

    公开(公告)日:1994-11-29

    申请号:US231174

    申请日:1994-04-22

    IPC分类号: C12P21/00 C07K1/02 C12P21/02

    CPC分类号: C12P21/02 C07K1/023

    摘要: The biocatalytic production of a peptide is carried out with a zymogen instead of the customarily used protease. Since zymogens are proteolytically inactive precursors of proteases, proteolytic side reactions are largely suppressed. Preferably, amino acid esters or peptide esters and C-terminally derivatized amino acids or peptide fragments are coupled to each other. The reaction can also take place in a frozen, aqueous medium. In particular, chymotrypsinogen, trypsinogen, pepsinogen, prorennin or procarboxypeptidase are suitable as zymogens.

    摘要翻译: 肽的生物催化生产用酶原代替常规使用的蛋白酶进行。 由于酶原是蛋白酶的蛋白水解无活性前体,因此蛋白水解副反应被大大抑制。 优选地,氨基酸酯或肽酯和C末端衍生的氨基酸或肽片段彼此偶联。 反应也可以在冷冻的水性介质中进行。 特别地,胰凝乳蛋白酶原,胰蛋白酶原,胃蛋白酶原,前列腺素或前羧肽酶适合作为酶原。

    Process for preparing peptides and N-carbamoyl-protected peptides
    2.
    发明授权
    Process for preparing peptides and N-carbamoyl-protected peptides 失效
    制备肽和N-氨基甲酰保护肽的方法

    公开(公告)号:US06251625B1

    公开(公告)日:2001-06-26

    申请号:US09011859

    申请日:1998-04-03

    IPC分类号: C12P2106

    CPC分类号: C12P21/02 C07K1/063 Y02P20/55

    摘要: The invention concerns a process for the enzymatic preparation of protected di- and oligopeptides and the separation of the protective groups used. The process according to the invention enables peptides to be synthesized simply and economically and the protective group to be separated carefully. The process comprises three reaction steps: 1. Preparation of N-carbamoyl amino acid or N-carbamoyl amino acid derivatives; 2. Formation of the peptide bond between the carbamoyl-protected electrophile and nucelophile; and 3. Separation of the carbamoyl-protective group.

    摘要翻译: 本发明涉及用于酶制备受保护的二肽和寡肽以及所用保护基的分离的方法。 根据本发明的方法使得肽可以简单和经济地合成,并且保护基被仔细分离。 该方法包括三个反应步骤:1.制备N-氨基甲酰基氨基酸或N-氨基甲酰基氨基酸衍生物; 氨基甲酰基保护的亲电子和生物素之间的肽键的形成; 和3.氨基甲酰基保护基的分离。

    Method for synthesizing peptides, peptide mimetics and proteins
    4.
    发明授权
    Method for synthesizing peptides, peptide mimetics and proteins 失效
    合成肽,肽模拟物和蛋白质的方法

    公开(公告)号:US07459526B2

    公开(公告)日:2008-12-02

    申请号:US10398493

    申请日:2001-10-05

    IPC分类号: C07K14/00

    摘要: The method for producing peptides, peptide mimetics and proteins is characterized in that an enzyme is used as a biocatalyst together with a peptide mimetic. The native specificity of the enzyme is modified by chemical or genetic manipulation, the substrate mimetic is a carboxyl component with an ester leaving group whose specificity determinant is adapted to the recognition site of the enzyme. The invention also concerns the trypsin variant D189K,K60E and its use as a C-N ligase in segment condensations.

    摘要翻译: 生产肽,肽模拟物和蛋白质的方法的特征在于酶与肽模拟物一起用作生物催化剂。 酶的天然特异性通过化学或遗传操作进行修饰,底物模拟物是具有酯离去基团的羧基组分,其特异性决定簇适用于酶的识别位点。 本发明还涉及胰蛋白酶变体D189K,K60E及其在片段缩合中作为C-N连接酶的用途。

    Process for preparing peptides
    5.
    发明授权
    Process for preparing peptides 失效
    制备肽的方法

    公开(公告)号:US5350682A

    公开(公告)日:1994-09-27

    申请号:US956025

    申请日:1993-02-12

    CPC分类号: C12P21/02 C07K1/023 Y02P20/55

    摘要: The invention relates to a process for preparing chirally uniform peptides. The aim of the invention is the preparation of chirally uniform peptides with the aid of proteolytic enzymes. The object comprises reacting alkyl esters of N-acylamino acids with proteases with amino acids, amino acid derivatives or peptides. The object is achieved by reacting an ester of an N-acylamino acid with a suitable amino acid derivative or peptide derivative with an unprotected N-terminal alphaamino group in frozen aqueous solution during catalysis with a serine protease or cysteine protease.

    摘要翻译: PCT No.PCT / EP91 / 00877 Sec。 371日期:1993年2月12日 102(e)日期1993年2月12日PCT提交1991年5月10日PCT公布。 第WO91 / 19811号公报 日期1991年12月26日。本发明涉及一种制备手性均匀肽的方法。 本发明的目的是借助蛋白水解酶制备手性均匀的肽。 该目的包括使N-酰基氨基酸的烷基酯与蛋白酶与氨基酸,氨基酸衍生物或肽反应。 该目的是通过在用丝氨酸蛋白酶或半胱氨酸蛋白酶催化的过程中,将N-酰基氨基酸的酯与合适的氨基酸衍生物或肽衍生物与未保护的N-末端α-氨基在冷冻水溶液中反应来实现的。