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Latest Kinesin 8 Stories

2011-08-11 21:49:21

The transport system inside living cells is a well-oiled machine with tiny protein motors hauling chromosomes, neurotransmitters and other vital cargo around the cell. These molecular motors are responsible for a variety of critical transport jobs, but they are not always on the go. They can put themselves into "energy save mode" to conserve cellular fuel and, as a consequence, control what gets moved around the cell, and when. A new study by Carnegie Mellon University biochemists, published...

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2010-02-18 12:55:00

Life's smallest motor, a protein that shuttles cargo within cells and helps cells divide, does so by rocking up and down like a seesaw, according to research conducted by scientists at the U.S. Department of Energy's Lawrence Berkeley National Laboratory and Brandeis University. The researchers created high-resolution snapshots of a protein motor, called kinesin, as it walked along a microtubule, which are tube-shaped structures that form a cell's "skeleton." The result is the closest look...

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2009-08-14 10:00:00

Friction is the force that resists the relative motion of two bodies in contact. The same is true on the nanoscale: Molecular motors have to fight the friction created between them and their tracks. However, since the frictional forces acting on such motors had not been measured before, it was not known how they depend on the speed and the direction of motion.Friction Slows Down ProteinsScientists in Dresden at the Biotechnology Center (BIO-TEC) of the Technical University of Dresden and at...

2009-03-23 08:28:55

U.S. scientists say they are studying motor proteins as possible nanoscale machines for drug delivery inside the body's cells. Pennsylvania State University Associate Professor William Hancock said motor proteins, which transport chromosomes, mitochondria or bundles of proteins within cells, might be used to deliver drugs or even help inhibit tumor growth. Hancock said most motor proteins contain two motor domains, or heads, attached to a shared cargo-binding domain, or tail. Think of it as a...

2009-01-09 12:04:51

A group of Dartmouth researchers has found a new function for one of the proteins involved with chromosome segregation during cell division. Their finding adds to the growing knowledge about the fundamental workings of cells, and contributes to understanding how cell function can go wrong, as it does with cancerous cells.The researchers studied a protein called NOD, distantly related to the motor proteins that power diverse cellular activities, including intracellular transport, signaling,...


Word of the Day
holluschickie
  • A 'bachelor seal'; a young male seal which is prevented from mating by its herd's older males (mated bulls defending their territory).
This comes from the Russian word for 'bachelors.'
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