Question: is gtp a g protein?
Answer: IV GTP-binding proteins. Heterotrimeric GTP-binding proteins (G-proteins) are composed of three subunits, α, β, and γ. In a resting state, G-protein exists as the GDP-bound α-subunit complexed with the β- and γ-subunits. The β- and γ-subunits are tightly bound and are commonly referred to as the Gβ,γ subunit.