7JJO:
reference: Structural Basis of the Activation of Heterotrimeric Gs-Protein by Isoproterenol-Bound beta1-Adrenergic Receptor., Su M, Zhu L, Zhang Y, Paknejad N, Dey R, Huang J, Lee MY, Williams D, Jordan KD, Eng ET, Ernst OP, Meyerson JR, Hite RK, Walz T, Liu W, Huang XY, Mol Cell. 2020 Oct 1;80(1):59-71.e4. doi: 10.1016/j.molcel.2020.08.001. Epub 2020, Aug 19. PMID: 32818430

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