1got is a 3 chain structure with sequence from Bos taurus. The October 2004 RCSB PDB Molecule of the Month feature on G Proteins by David S. Goodsell is 10.2210/rcsb_pdb/mom_2004_10. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
The structure of a heterotrimeric G protein reveals the mechanism of the nucleotide-dependent engagement of the alpha and beta gamma subunits that regulates their interaction with receptor and effector molecules. The interaction involves two distinct interfaces and dramatically alters the conformation of the alpha but not of the beta gamma subunits. The location of the known sites for post-translational modification and receptor coupling suggest a plausible orientation with respect to the membrane surface and an activated heptahelical receptor.
The 2.0 A crystal structure of a heterotrimeric G protein.,Lambright DG, Sondek J, Bohm A, Skiba NP, Hamm HE, Sigler PB Nature. 1996 Jan 25;379(6563):311-9. PMID:8552184[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
↑ Lambright DG, Sondek J, Bohm A, Skiba NP, Hamm HE, Sigler PB. The 2.0 A crystal structure of a heterotrimeric G protein. Nature. 1996 Jan 25;379(6563):311-9. PMID:8552184 doi:http://dx.doi.org/10.1038/379311a0