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

A new weapon against antibiotic-resistant bacteria

The unreasonable use of antibiotics has pushed bacteria to develop resistance mechanisms to this type of treatment. This phenomenon, known as antibiotic resistance, is now considered by the WHO as one of the greatest threats ...

Microplastics threaten ecosystems of Dhaka rivers

Tiny plastic particles have been found in abundance in the surface water and underlying sediments of several lakes and peripheral rivers of Dhaka, according to a new study which researchers say sheds light on the environmental ...

Robotic intracellular electrochemical sensing for adherent cells

A research team from Southern University of Science and Technology developed an automated intracellular sensing system, which provides a high-efficiency approach to reveal cellular intrinsic characteristics and heterogeneity ...

How a molecular switch shapes plant organ growth

Researchers at the John Innes Centre and partners at the Chinese Academy of Sciences have identified a molecular switch that establishes differential cell growth and organ shape.

New tool for early detection of hypertension

Russian scientists have come up with a new tool for early detection of hypertension. They applied surface-enhanced Raman spectroscopy powered by silver nanoparticles to detect hypertension-induced molecular changes in blood ...

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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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