News tagged with cell surface

Related topics: cells · immune response · cancer cells · protein

Identification tags define neural circuits

The human brain is composed of complex circuits of neurons, cells that are specialized to transmit information via electrochemical signals. Like the circuits in a computer, these neuronal circuits must be connected in particular ...

Dec 17, 2015
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For cancer patients, sugar-coated cells are deadly

(Medical Xpress)—Every living cell's surface has a protein-embedded membrane that's covered in polysaccharide chains – a literal sugar coating. On cancer cells, this coating is especially thick and pronounced.

Jun 26, 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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