News tagged with receptors

Related topics: cells · protein · brain · molecules · nerve cells

Hard-wiring memories

Many people remember exactly what they were doing on September 11, 2001, and some even easily remember exactly what they ate for lunch yesterday. Memories are formed when the neural networks that are active during an event ...

Oct 18, 2016
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Receptor (biochemistry)

In biochemistry, a receptor is a protein molecule, embedded in either the plasma membrane or cytoplasm of a cell, to which a mobile signaling (or "signal") molecule may attach. A molecule which binds to a receptor is called a "ligand," and may be a peptide (such as a neurotransmitter), a hormone, a pharmaceutical drug, or a toxin, and when such binding occurs, the receptor undergoes a conformational change which ordinarily initiates a cellular response. However, some ligands merely block receptors without inducing any response (e.g. antagonists). Ligand-induced changes in receptors result in physiological changes which constitute the biological activity of the ligands.

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