News tagged with membrane proteins

Related topics: protein · cell membrane

New inhibitor blocks the oncogenic protein KRAS

One of the major goals in the development of anti-cancer treatments is to find an inhibitor effective against the oncogenic protein known as KRAS. Despite decades of active agent research, efforts to intercede in this protein's ...

Aug 09, 2013
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Researchers offer new insights on cancer cell signaling

(Medical Xpress)—A pair of studies by a team of University of Notre Dame researchers led by Crislyn D'Souza-Schorey, professor of biological sciences, sheds light on a biological process that is activated across a vast ...

Jul 12, 2013
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Amphetamines only work when 'well lubricated'

The misuse of amphetamines is increasing steadily. Ahead of the "International Day against Drug Abuse" (26th June 2013) MedUni Vienna researchers are presenting a study which unlocks a significant mechanism involved in their ...

Jun 26, 2013
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Researchers find key to blood-clotting process

Researchers, including Professor Alastair Poole and Dr Matthew Harper from the University of Bristol's School of Physiology and Pharmacology, have uncovered a key process in understanding how blood clots form that could help ...

Jun 26, 2013
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Membrane protein

A membrane protein is a protein molecule that is attached to, or associated with the membrane of a cell or an organelle. More than half of all proteins interact with membranes.

Biological membranes consist of a phospholipid bilayer and a variety of proteins that accomplish vital biological functions. Structural proteins are attached to microfilaments in the cytoskeleton which ensures stability of the cell. Cell recognition proteins allow cells to identify each other and interact. Such proteins are involved in immune response, for example. Membrane enzymes produce a variety of substances essential for cell function. Membrane receptor proteins serve as connection between the cell's internal and external environments. Finally, transport proteins play an important role in the maintenance of concentrations of ions. These transport proteins come in two forms: carrier proteins and channel proteins. Carrier proteins are involved in using the energy released from ATP being broken down to facilitate active transport and ion exchange. These processes ensure that useful substances are able to enter the cell and that toxic substances are pumped out of the cell.

This text uses material from Wikipedia, licensed under CC BY-SA

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