Cross-linking reagent for insulin synthesis
    7.
    发明授权
    Cross-linking reagent for insulin synthesis 失效
    用于胰岛素合成的交联剂

    公开(公告)号:US3996268A

    公开(公告)日:1976-12-07

    申请号:US502425

    申请日:1974-09-03

    摘要: Carbonyl-bis (L-methionine p-nitrophenyl ester) and its analogues are useful reagents for the intermolecular cross-linking of two chain peptide molecules such as occur in the hormone insulin. The cross-linking occurs across amino groups at preferred positions in the two peptide chains to fix the relative spacial position of the peptide chains and permit the oxidative formation of necessary disulfide bridges between the chains in high yields. The reagent is then removed from the linked chains to yield the insulin molecule. A method for preparation of the reagent is disclosed. Further, a procedure is disclosed by which the cross-linking reagent is used to specifically block certain amino groups on insulin to yield a cross-linked insulin which in turn is used to prepare isotopically labeled insulin and insulin analogues.

    摘要翻译: 羰基 - 双(L-甲硫氨酸对硝基苯酯)及其类似物是用于激素胰岛素中发生的两个链肽分子的分子间交联的有用试剂。 交联发生在两个肽链中优选位置的氨基上,以固定肽链的相对空间位置,并允许以高产率在链之间氧化形成必需的二硫键。 然后从连接的链中除去试剂以产生胰岛素分子。 公开了一种制备试剂的方法。 此外,公开了一种方法,通过该方法,交联剂用于特异性阻断胰岛素上的某些氨基,产生交联的胰岛素,其又用于制备同位素标记的胰岛素和胰岛素类似物。