Related topics: cells · protein

Chlamydia build their own entrance into human cells

Chlamydia, a type of pathogenic bacteria, need to penetrate human cells in order to multiply. Researchers from Heinrich Heine University Duesseldorf (HHU) have now identified the bacterial protein SemC, which is secreted ...

A scaffold at the center of our cellular skeleton

All animal cells have an organelle called a centrosome, which is essential to the organization of their cell skeleton. The centrosome plays fundamental roles, especially during cell division, where it allows equal sharing ...

Study finds salt nanoparticles are toxic to cancer cells

A new study at the University of Georgia has found a way to attack cancer cells that is potentially less harmful to the patient. Sodium chloride nanoparticles—more commonly known as salt—are toxic to cancer cells and ...

Understanding cell division

Cytokinesis is the final step of the process of cell division, by which the two new cells are physically separated. This process relies on a structure called the cytokinetic ring, which needs to be linked to the plasma membrane ...

New findings on the recycling centres of cells

Both animal and plant cells depend on autophagy in which damaged or superfluous cell material is removed. The degradation of substrates is done by proteins. In animals, it takes place in a cell organelle called the lysosome ...

Insect or virus? How plants know

Most plants have plenty of enemies, from insects and other grazing creatures to various diseases, droughts and many other stressors.

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 ...

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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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