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Latest Cell membrane Stories

2013-08-09 09:50:20

Researchers from Tubingen resolve how a plant steroid hormone makes plants grow If one wants to better understand how plants grow, one must analyze the chemistry of life in its molecular detail. Michael Hothorn from the Friedrich-Miescher-Laboratory of the Max Planck Society in Tübingen and his team are doing just that. Their latest work now reveals that a plant membrane receptor requires a helper protein to sense a growth-promoting steroid hormone and to transduce this signal across the...

2013-06-18 13:17:51

Researchers at IRB Barcelona and IBEC achieve photo-switchable molecules to control protein-protein interactions in a remote and non-invasive manner. These tools will serve as a prototype to develop photo-switchable drugs, whose effects would be limited to a given region and time, thus reducing the side effects on other regions. The article, cover and “Very Important Paper” of Angewandte Chemie, is a highlighted result of the European project “OpticalBullet”,...

2013-04-30 13:57:08

NIH-funded study reveals protein, fatty molecules and cellular energy work together during endocytosis Cells ingest proteins and engulf bacteria by a gymnastic, shape-shifting process called endocytosis. Researchers at the National Institutes of Health revealed how a key protein, dynamin, drives the action. Endocytosis lets cells absorb nutrients, import growth factors, prevent infections and accomplish many other vital tasks. Yet, despite decades of research, scientists don't fully...

2013-04-29 14:06:58

For the first time, researchers at Karolinska Institutet in Sweden have managed to obtain detailed images of the way in which the transport protein GLUT transports sugars into cells. Since tumors are highly dependent on the transportation of nutrients in order to be able to grow rapidly, the researchers are hoping that the study published in the scientific magazine Nature Structural & Molecular Biology will form the basis for new strategies to fight cancer cells. In order to be able to...

IntegrinMD
2013-03-22 16:03:48

Lawrence Berkeley National Laboratory Your cells are social butterflies. They constantly interact with their surroundings, taking in cues on when to divide and where to anchor themselves, among other critical tasks. This networking is driven in part by proteins called integrin, which reside in a cell´s outer plasma membrane. Their job is to convert mechanical forces from outside the cell into internal chemical signals that tell the cell what to do. That is, when they work properly....

2013-01-29 10:14:54

A new way of looking at a cell's surface reveals the distribution of small molecules in the cell membrane, changing the understanding of its organization. A novel imaging study by researchers from Lawrence Livermore National Laboratory, the University of Illinois and the National Institutes of Health revealed some unexpected relationships among molecules within cell membranes. Their findings provide a new way of studying cell structure and ultimately its function. Led by Mary Kraft...

Scientists Create Temporary Holes In Cells
2013-01-23 19:20:00

Lee Rannals for redOrbit.com — Your Universe Online [ Watch the Video: Delivering Large Molecules to Cells In Membranes ] Researchers from the Massachusetts Institute of Technology (MIT) have found a safe way to squeeze large molecules through a narrow construction in cell membranes. The membrane around living cells helps to regulate what gets in and out of the cell. This barrier helps control the cell´s internal environment, but makes it difficult for scientists to...

2013-01-04 10:55:22

Discovery points to roles of diaphragms in the maintenance of blood plasma composition and survival: -PV1 expression in vascular endothelium is required for survival -PV1 is required for the formation of stomatal and fenestral diaphragms -Lack of diaphragms in fenestrated endothelia causes vascular leak of plasma proteins -Vascular leak results in severe hypoproteinemia and hypertriglyceridemia Dartmouth scientists have demonstrated the importance of the gene Plvap and the structures...

Synthetic Membrane Channels Built Out Of DNA
2012-11-21 08:03:43

Technische Universitaet Muenchen Nanotech structures mimic nature's way of tunneling through cell walls As reported in the journal Science, physicists at the Technische Universitaet Muenchen (TUM) and the University of Michigan have shown that synthetic membrane channels can be constructed through "DNA nanotechnology." This technique employs DNA molecules as programmable building materials for custom-designed, self-assembling, nanometer-scale structures. The researchers present evidence...

2012-10-19 01:44:17

Chemists at the California Institute of Technology (Caltech) have managed, for the first time, to simulate the biological function of a channel called the Sec translocon, which allows specific proteins to pass through membranes. The feat required bridging timescales from the realm of nanoseconds all the way up to full minutes, exceeding the scope of earlier simulation efforts by more than six orders of magnitude. The result is a detailed molecular understanding of how the translocon works....


Word of the Day
barratry
  • The offense of persistently instigating lawsuits, typically groundless ones.
  • An unlawful breach of duty on the part of a ship's master or crew resulting in injury to the ship's owner.
  • Sale or purchase of positions in church or state.
This word ultimately comes from the Old French word 'barater,' to cheat.
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