Related topics: cells · protein

Motor proteins and membrane dynamics

Membranes composed of a lipid bilayer define the outer surface of nucleated cells (the plasma membrane) and delimit the vital organelles within these cells, such as mitochondria and nuclei. The membrane curvature determines ...

Discovery casts doubt on cell surface organization models

Like planets, the body's cell surfaces look smooth from a distance, but contoured closer up. An article published in Communications Biology describes previously unknown implications of the way data from cell surfaces are ...

The exocyst dynamo

The exocyst is a protein complex essential for life, that is comprised of eight subunits and is a crucial component in vesicle trafficking.

Measuring the tension of a cell with a molecule

The volume of cells can vary dramatically. Similarly to an inflating balloon, the volume increase of growing cells pushes on the plasma membrane—the lipid envelope that surrounds the cell. This "turgor" pressure increases ...

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Cell membrane

The cell membrane (also called the plasma membrane or plasmalemma) is the biological membrane separating the interior of a cell from the outside environment.

It is a semipermeable lipid bilayer found in all cells. It contains a wide variety of biological molecules, primarily proteins and lipids, which are involved in a vast array of cellular processes such as cell adhesion, ion channel conductance and cell signaling. The plasma membrane also serves as the attachment point for both the intracellular cytoskeleton and, if present, the extracellular cell wall.

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