Uncoupling conformational change from GTP hydrolysis in a heterotrimeric G protein {alpha}-subunit.
Thomas, C.J., Du, X., Li, P., Wang, Y., Ross, E.M., Sprang, S.R.(2004) Proc Natl Acad Sci U S A 101: 7560-7565
- PubMed: 15128951 
- DOI: 10.1073/pnas.0304091101
- Primary Citation of Related Structures:  
1SVK, 1SVS - PubMed Abstract: 
Heterotrimeric G protein alpha (G alpha) subunits possess intrinsic GTPase activity that leads to functional deactivation with a rate constant of approximately 2 min(-1) at 30 degrees C. GTP hydrolysis causes conformational changes in three regions of G alpha, including Switch I and Switch II ...