G proteins Prot�eines G. GTP-Binding Proteins Life Sciences SCIENCE Biochemistry Heterotrimeric GTP-Binding Proteins Signal Transduction analysis physiology Aufsatzsammlung Biochemie Biology Canaux ioniques Cell receptors Cellular signal transduction Clinical enzymology Enzymes Enzymologie clinique GTP-bindende Proteine Heterotrimeterni GTP-vezavni proteini Ion Channels Ion channels Prote�ine-G. Prot�eines G. Prot�eines liant GTP R�ecepteurs cellulaires Receptorji, celi�cna povr�sina Receptors, Cell Surface Transduction du signal