Smooth muscle mitogen
    10.
    发明公开
    Smooth muscle mitogen 失效
    Glatter Muskel有丝分裂原。

    公开(公告)号:EP0482623A2

    公开(公告)日:1992-04-29

    申请号:EP91118120.4

    申请日:1991-10-24

    IPC分类号: C07K14/475

    CPC分类号: C07K14/475 A61K38/00

    摘要: A novel growth factor (BTC-CG) was purified from the conditioned medium of pancreatic beta tumor cells initially derived from transgenic mice (RIP1-Tag2). The purification scheme included BioRex 70 chromatography, phenyl-Sepharose chromatography, TSL-GEL heparin FPLC and C4 reverse phase HPLC. The peptide also stimulated proliferation of bovine smooth muscle cells. It was not inactivated by boiling, by 10 mM dithiothreitol or by exposure to 1 M acetic acid. Biological activity of BTC-GF was recovered from a single band of protein which had a molecular weight of 32,000 on SDS-PAGE. The partial N-terminal amino acid sequence of this protein from BTC-3 and BTC-J10 cells was determined with an ABI 470A protein sequencer to be:

    摘要翻译: 从最初衍生自转基因小鼠(RIP1-Tag2)的胰腺β细胞的细胞培养基中纯化出新的生长因子(BTC-CG)。 纯化方案包括BioRex 70色谱,苯基琼脂糖层析,TSL-GEL肝素FPLC和C4反相HPLC。 该肽还刺激了牛平滑肌细胞的增殖。 通过煮沸,10mM二硫苏糖醇或通过暴露于1M乙酸不灭活。 从SDS-PAGE上分子量为32,000的单一蛋白质带中回收BTC-GF的生物活性。 使用ABI 470A蛋白质测序仪测定来自BTC-3和BTC-J10细胞的该蛋白质的部分N-末端氨基酸序列: