News tagged with membrane proteins

Related topics: protein , cell membrane

Common RNA pathway found in ALS and dementia

Two proteins previously found to contribute to ALS, also known as Lou Gehrig's disease, have divergent roles. But a new study, led by researchers at the Department of Cellular and Molecular Medicine at the University of California, ...

Sep 30, 2012
popularity 4.8 / 5 (4) | comments 0 | with audio podcast

From shape-shifting to therapy

(Medical Xpress)—The latest research into the intricate processes that let substances into and out of cells will help to lay the foundations for the next generation of therapies for major diseases.

Mar 12, 2013
popularity 5 / 5 (1) | comments 0 | with audio podcast

Study reveals natural process that blocks viruses

The human body has the ability to ward off viruses by activating a naturally occurring protein at the cellular level, setting off a chain reaction that disrupts the levels of cholesterol required in cell membranes to enable ...

Apr 17, 2013
popularity 5 / 5 (6) | comments 2 | with audio podcast

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