Political career of Rab Butler: 1929–1941 Political career of Rab Butler: 1929–1941 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. Butler was elected to Parliament for Saffron Walden in Essex at the 1929 General Election, and soon became a parliamentary assistant to Samuel Hoare, the leading Conservative politician associated with Indian policy. Butler attended the Second Round Table Conference and early in 1932 he visited India on Lord Lothian's Franchise Committee, which recommended an increase in the Indian franchise.
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