2BCJ:
reference: Snapshot of activated G proteins at the membrane: the Galphaq-GRK2-Gbetagamma complex., Tesmer VM, Kawano T, Shankaranarayanan A, Kozasa T, Tesmer JJ, Science 2005 Dec 9;310(5754):1686-90. PMID: 16339447

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).