Related topics: cells

A simple way to control swarming molecular machines

The swarming behavior of about 100 million molecular machines can be controlled by applying simple mechanical stimuli such as extension and contraction. This method could lead to the development of new swarming molecular ...

The plus and minus of microtubules

Microtubules are protein polymers that assemble into dynamic structures, essential for cell division, shape, motility, and transport of intracellular cargos.

Mystery solved about the machines that move your genes

Fleets of microscopic machines toil away in your cells, carrying out critical biological tasks and keeping you alive. By combining theory and experiment, researchers have discovered the surprising way one of these machines, ...

Solving a molecular scissors mystery

A Netherlands Cancer Institute team, co-led by Thijn Brummelkamp and Anastassis (Tassos) Perrakis, reported independently, but almost simultaneously with three more groups from all over the world, on the crystal structure ...

Molecular scissors stabilize the cell's cytoskeleton

Researchers at the Paul Scherrer Institute PSI in Villigen, Switzerland, have for the first time elucidated the structure of important enzymes in human cells that alter essential building blocks of the cellular cytoskeleton. ...

DNA origami to scale-up molecular motors

Researchers have successfully used DNA origami to make smooth-muscle-like contractions in large networks of molecular motor systems, a discovery which could be applied in molecular robotics.

How our cellular antennas are formed

Most of our cells contain an immobile primary cilium, an antenna used to transfer information from the surrounding environment. Some cells also have many mobile cilia that are used to generate movement. The 'skeleton' of ...

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Microtubule

Microtubules are a component of the cytoskeleton. These rope-like polymers of tubulin can grow as long as 25 micrometers and are highly dynamic. The outer diameter of microtubule is about 25 nm. Microtubules are important for maintaining cell structure, providing platforms for intracellular transport, forming the spindle during mitosis, as well as other cellular processes. There are many proteins that bind to the microtubule, including motor proteins such as kinesin and dynein, severing proteins like katanin, and other proteins important for regulating microtubule dynamics.

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