G-Proteins,Heterotrimeric

《英文msh詞典》G-Proteins,Heterotrimeric
[入口詞] G-Proteins,Heterotrimeric
[主題詞] Heterotrimeric GTP-Binding Proteins
[英文釋義] GTP-BINDING PROTEINS that contain three non-identical subunits. They are found associated with members of the seven transmembrane domain superfamily of G-PROTEIN-COUPLED RECEPTORS. Upon activation the GTP-BINDING PROTEIN ALPHA SUBUNIT of the complex dissociates leaving a dimer of a GTP-BINDING PROTEIN BETA SUBUNIT bound to a GTP-BINDING PROTEIN GAMMA SUBUNIT.