reseptorien
Reseptorien are biomolecules that detect signals and convert them into cellular responses. They can be proteins located on the cell surface, within the cytoplasm, or in the nucleus. By binding specific ligands—such as hormones, neurotransmitters, odorants, photons, or temperature changes—reseptorien initiate signal transduction pathways that alter cellular activity or gene expression.
Major classes include cell-surface receptors such as G protein-coupled receptors (GPCRs), receptor tyrosine kinases (RTKs), and
Mechanisms of action typically involve conformational changes upon ligand binding, leading to second messenger signaling (for
Reseptorien play essential roles in development, homeostasis, perception, immune responses, and physiology. They are central to