Look up Receptor in Wiktionary, the free dictionary.
Receptor may refer to: Wikipedia does not have an article with this exact name. ... It has been suggested that French Wiktionary be merged into this article or section. ...
Sensory receptor, in physiology, any structure which, on receiving environmental stimuli, produces an informative nerve impulse
Receptor (biochemistry), in biochemistry, a protein molecule that receives and responds to a neurotransmitter, hormone, or other substance
Receiver (radio), in telecommunication, an electronic circuit that receives a radio signal from an antenna and decodes it
Receptor, in immunology, the region of an antibody which shows recognition of an antigen
Receptor (band), a rock band from Australia
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In biochemistry, a receptor is a protein on the cell membrane or within the cytoplasm or cell nucleus that binds to a specific molecule (a ligand), such as a neurotransmitter, hormone, or other substance, and initiates the cellular response to the ligand.
Often, it is hard to determine whether the receptor is nonfunctional or the hormone is produced at decreased level; this gives rise to the "pseudo-hypo-" group of endocrine disorders, where there appears to be a decreased hormonal level while in fact it is the receptor that is not responding sufficiently to the hormone.
Many hormonereceptors and neurotransmitterreceptors are transmembrane proteins: transmembrane receptors are embedded in the lipid bilayer of cell membranes, that allow the activation of signal transduction pathways in response to the activation by the binding molecule, or ligand.
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