Process for the isolation and purification of alpha-interferons
    5.
    发明授权
    Process for the isolation and purification of alpha-interferons 失效
    α-干扰素的分离和纯化方法

    公开(公告)号:US4681931A

    公开(公告)日:1987-07-21

    申请号:US741865

    申请日:1985-06-06

    CPC分类号: C07K14/56

    摘要: The invention relates to a process for the isolation and purification of .alpha.-interferons generated by plasmids from bacterial cultures which have been modified by genetic engineering, and of .alpha.-interferons from culture supernatants of induced mammalian cells, which comprises partition of appropriate crude substances containing interferon between an aqueous urea solution, which contains a surfactant, and a mixture of n-butanol and glacial acetic acid which contains water, and isolation of the purified .alpha.-interferons from the upper phase.

    摘要翻译: 本发明涉及用于分离和纯化由经遗传工程修饰的细菌培养物的质粒产生的α-干扰素和由诱导的哺乳动物细胞的培养物上清液产生的α-干扰素的方法,该方法包括将含有 在含有表面活性剂的尿素水溶液和含有水的正丁醇和冰醋酸的混合物之间的干扰素,以及从上部相分离纯化的α-干扰素。

    Process for converting preproinsulin analogs into insulins
    10.
    发明授权
    Process for converting preproinsulin analogs into insulins 失效
    将胰岛素类似物转化为胰岛素的方法

    公开(公告)号:US4639333A

    公开(公告)日:1987-01-27

    申请号:US659865

    申请日:1984-10-12

    IPC分类号: C12P21/02 C07K14/62 C07K7/40

    摘要: The invention relates to a process for the preparation of insulins from analogs of preproinsulins, which comprises reacting preproinsulin analogs, at a pH below the isoelectric point of the insulins in the presence of trypsin or a trypsin-like endopeptidase, with an ester of natural amino acids or their derivatives and then cleaving off the ester group and other protective groups which may optionally be present.

    摘要翻译: 本发明涉及从前胰岛素类似物制备胰岛素的方法,其包括在胰蛋白酶或胰蛋白酶样内肽酶存在下,将胰岛素类似物与胰岛素类胰蛋白酶存在下的pH低于胰岛素的等电点与天然氨基酸的酯反应 酸或其衍生物,然后断开酯基和可任选存在的其它保护基。