Tag: surface cell-membrane receptor

Water-soluble hormones are key regulators of cellular activity, unable to penetrate the cell membrane, which necessitates a unique signaling pathway within target cells. This diagram illustrates the process where a water-soluble hormone binds to a surface cell-membrane receptor, triggering a cascade involving G proteins, adenylyl cyclase, cyclic AMP (cAMP), and protein kinases, ultimately leading to the phosphorylation of proteins in the cytoplasm. Exploring this image offers a deeper understanding of how these hormones exert their effects through intricate intracellular signaling.