News tagged with receptors

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

Enlightening cancer cells

Joint EMBO Journal paper by IST Austria and Vienna Medical University groups on engineered cell surface receptors activated by light. Small algal protein domains serve as synthetic light sensors in human ...

Jul 01, 2014
popularity 4.5 / 5 (2) | comments 0

Why it's so hard to diet

We tried low-fat diets. We tried high-protein and low-carb. Each diet had its pros and cons. By now, many Americans are coming to the inescapable conclusion that there's only one way to lose weight: eat less. Why is that ...

Jun 25, 2014
popularity 4.8 / 5 (6) | comments 1

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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