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Noel JP, et al. (1993) The 2.2 A crystal structure of transducin-alpha complexed with GTP gamma S. Nature 366(6456):654-63
Abstract: The 2.2 A crystal structure of activated rod transducin, Gt alpha.GTP gamma S, shows the bound GTP gamma S molecule occluded deep in a cleft between a domain structurally homologous to small GTPases and a helical domain unique to heterotrimeric G proteins. The structure, when combined with biochemical and genetic studies, suggests: how an activated receptor might open this cleft to allow nucleotide exchange; a mechanism for GTP-induced changes in effector and receptor binding surfaces; and a mechanism for GTPase activity not evident from previous data.
| Status: Published | Type: Journal Article | PubMed ID: 8259210 |
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