Mutant epidermal growth factor polypeptides, nucleic acids, and uses therefor
    21.
    发明申请
    Mutant epidermal growth factor polypeptides, nucleic acids, and uses therefor 有权
    突变表皮生长因子多肽,核酸及其用途

    公开(公告)号:US20080249008A1

    公开(公告)日:2008-10-09

    申请号:US11725695

    申请日:2007-03-20

    CPC分类号: C07K14/485 A61K38/00

    摘要: The present invention is based, in part, on our discovery that EGF can be engineered to generate mutants that bind to the EGF receptor (EGFR) of a cell and that have a desirable effect on the activity of the cell. For example, the mutants can agonize the receptor (i.e., increase a biological activity of the receptor), or antagonize the receptor (i.e., decrease or inhibit a biological activity of the receptor). In turn, the rate at which the cell proliferates, for example, can be changed. Moreover, some of these mutants bind EGFR with a higher affinity than wild-type EGF exhibits. The affinity may increase by about, for example, 2-, 5-, 10-, 15-, 20-, 25-, 30-, 50-, or 100-fold relative to wild-type EGF.

    摘要翻译: 本发明部分基于我们的发现,EGF可以被工程化以产生结合细胞的EGF受体(EGFR)的突变体,并且对细胞的活性具有期望的影响。 例如,突变体可以激动受体(即,增加受体的生物活性)或拮抗受体(即降低或抑制受体的生物活性)。 反过来,细胞增殖的速度例如可以改变。 此外,这些突变体中的一些以比野生型EGF显示更高的亲和力结合EGFR。 相对于野生型EGF,亲和力可以增加约例如2-,5-,10-,15-,20-,25-,30-,50-或100倍。