Figure 2.

Localization of positively charged amino acid residues (blue balls and sticks) of the N-terminal fragment in the context of the tertiary and quaternary structure of Gαsβ₁γ₂ heterotrimer and Gαi₁ subunit (red). The Gαs is colored green; the Gβ₁ is orange; the Gγ₂–yellow. The diagram was generated using coordinates from the PDB: 6X18 and 6CRK and visualized with BIOVIA Discovery Studio 4.0.