Heterotrimeric G protein complex molecule 插畫檔

Heterotrimeric G protein complex molecule. Molecular model of a heterotrimeric G protein complex. This protein has three different subunits (heterotrimer), alpha, beta and gamma. G proteins, or guanine nucleotide binding proteins, are molecular switches involved in signal transduction. Heterotrimeric G proteins relay signals from cell surface receptors to their effectors, including ion channels and enzymes, within a cell.