Rab Butler Rab Butler Richard Austen Butler, Baron Butler of Saffron Walden, (9 December 1902 – 8 March 1982), generally known as R. A. Butler and familiarly known from his initials as Rab, was a prominent British Conservative politician. "The Times" obituary called him "the creator of the modern educational system, the key-figure in the revival of post-war Conservatism, arguably the most successful chancellor since the war and unquestionably a Home Secretary of reforming zeal." He was one of his party's leaders in promoting the post-war consensus through which the major parties largely agreed on the main points of domestic policy until
Rab (G-protein) vesicles. Shown in parenthesis are the equivalent names in the model organisms "Saccharomyces cerevisiae" and "Aspergillus nidulans". Rab (G-protein) The Rab family of proteins is a member of the Ras superfamily of monomeric G proteins. Approximately 70 types of Rabs have now been identified in humans. Rab proteins generally possess a GTPase fold, which consists of a six-stranded beta sheet which is flanked by five alpha helixes. Rab GTPases regulate many steps of membrane trafficking, including vesicle formation, vesicle movement along actin and tubulin networks, and membrane fusion. These processes make up the route through which cell surface proteins are