These include pathogenic variants of G protein subunits such as the GNB3 gene in hypertension, activating GNAS variants in McCune-Albright’s syndrome [98], heterozygous inheritance of inactivating GNAS variants in AHO [101–104], and PPH resulting from heterozygous LOF GNAS variants [45]. The gene discussed is GNB3; the disease is McCune-Albright syndrome.