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DefinitionThis section has been translated automatically.
Small G proteins, also known as small GTP-ases, are monomeric GTP-binding proteins with a molecular mass of 20 to 40 kDa. Small G proteins are involved in the regulation of numerous cell functions. Currently, > 100 different small G proteins are known. They are divided into 5 families: Ras, Rho, Rab, Sar1/Arf and Ran. See under G-proteins.
Prof. Dr. med. Peter Altmeyer