Biochemistry 1 Cellular signal transduction 1 G proteins 1 GTP-Binding Proteins 1 Methodology 1 Proteins -- Research -- Methodology--- Nucleic acids -- Research -- Methodology---- Amino acid sequence 1 Proteins -- Research -- Methodology--- Nucleic acids -- Research -- Methodology 1 Receptors 1 Research 1 Signal Transduction 1 metabolism 1 methods 1 physiology 1