News tagged with receptors

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

Proteases help nerve cells to navigate

Our ability to move relies on the correct formation of connections between different nerve cells and between nerve and muscle cells. Growing axons of nerve cells are guided to their targets by signposts expressed ...

Oct 22, 2014
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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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Readying the neural network

Synapse, the name for the signal-receiving site on a neuron, comes from the Greek word for contact. Neuroscientists used to maintain that neurons form one-to-one relationship to contact one another. Yet more ...

Nov 17, 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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