G proteins
    2.
    发明授权

    公开(公告)号:US11339383B2

    公开(公告)日:2022-05-24

    申请号:US16835431

    申请日:2020-03-31

    IPC分类号: C12N9/14 C07K14/47

    摘要: The invention provides a mutant of a parent heterotrimeric G protein alpha (Gα) subunit, which mutant (i) lacks at least one helix of the helical domain of the parent Gα subunit; (ii) is capable of binding to a GPCR in the absence of a heterotrimeric G protein beta (Gβ) subunit and a heterotrimeric G protein gamma (Gγ) subunit; and (iii) has an amino acid sequence that contains one or more mutations compared to the amino acid sequence of the parent heterotrimeric Gα subunit, which mutations are selected from a deletion, a substitution and an insertion.