News tagged with receptors

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

New treatment for Marfan syndrome shows promise

An investigational treatment for Marfan syndrome is as effective as the standard therapy at slowing enlargement of the aorta, the large artery of the heart that delivers blood to the body, new research shows. The findings ...

Nov 18, 2014
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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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