Title : Sequence of interactions in receptor-G protein coupling.

Pub. Date : 2004 Jun 4

PMID : 15007073






2 Functional Relationships(s)
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Compound Name
Protein Name
Organism
1 A holo-G protein with a high affinity Galpha C terminus shows a specific change of the reaction rate in the GDP release and GTP uptake steps of catalysis. Guanosine Diphosphate succinate-CoA ligase GDP/ADP-forming subunit alpha Homo sapiens
2 We interpret the data by a sequential fit model where (i) the initial encounter between R* and the G protein occurs with the Gbetagamma subunit, and (ii) the Galpha C-terminal tail then interacts with R* to release bound GDP, thereby decreasing the affinity of R* for the Gbetagamma subunit. Guanosine Diphosphate succinate-CoA ligase GDP/ADP-forming subunit alpha Homo sapiens