Primary structure of the α‐subunit of bovine adenylate cyclase‐inhibiting G‐protein deduced from the cDNA sequence

Authors:
  • TNToshihide Nukada
    Toshihide Nukada
  • TTTsutomu Tanabe
    Tsutomu Tanabe
  • HTHideo Takahashi
    Hideo Takahashi
  • KHKazuko Haga
    Kazuko Haga
  • THTatsuya Haga
    Tatsuya Haga
  • AIArata Ichiyama
    Arata Ichiyama
  • KKKenji Kangawa
    Kenji Kangawa
  • MHMasuyo Hiranaga
    Masuyo Hiranaga
  • HMHisayuki Matsuo
    Hisayuki Matsuo
  • SNShosaku Numa
    Shosaku Numa

Abstract
The primary structure of the α‐subunit of the adenylate cyclase‐inhibiting G‐protein (gi) has been deduced from the nucleotide sequence of cloned DNA complementary to the bovine cerebral mRNA encoding the polypeptide. A much higher degree of amino acid sequence homology is observed between the α‐subunits of Gi and transducin (68%) than between those of Gi and the adenylate cyclase‐stimulating G‐protein (Gs) (43%) or between those of transucin and Gs (42%).