News tagged with cellular membrane
A cell's first steps: Building a model to explain how cells grow
A collaboration between Lehigh University physicists and University of Miami biologists addresses an important fundamental question in basic cell biology: How do living cells figure out when and where to grow?
May 18, 2012 |
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Researchers present a shiny new tool for imaging biomolecules
At the heart of the immune system that protects our bodies from disease and foreign invaders is a vast and complex communications network involving millions of cells, sending and receiving chemical signals ...
Mar 23, 2012 |
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Spectroscopic evidence for the unusual handedness of a mammalian lipid may advance our understanding of evolution
Phospholipids are the main constituents of the cellular membranes in all organisms, ranging from single-celled archaea to highly complex plants and mammals. According to conventional wisdom, the chemical backbone ...
Mar 23, 2012 |
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Cell protein interactions favor fats
For cells to signal each other to carry out their vital work, could the cell membrane's lipids -- or fats -- play a role in buttering-up the process? A research group led by University of Illinois at Chicago chemistry professor ...
Mar 22, 2012 |
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Another piece of the ion pump puzzle
From bacteria to humans, all cells use molecules of adenosine triphosphate (ATP) as fuel to power a broad range of biochemical reactions. For example, massive multi-subunit enzymes known as V-ATPases convert ...
Mar 16, 2012 |
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How muscle cells seal their membranes
Every cell is enclosed by a thin double layer of lipids that separates the distinct internal environment of the cell from the extracellular space. Damage to this lipid bilayer, also referred to as plasma membrane, ...
Mar 14, 2012 |
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When dying, bacteria share some characteristics with higher organisms
Do bacteria, like higher organisms, have a built-in program that tells them when to die? The process of apoptosis, or cell death, is an important part of normal animal development. In a new study published March 6 in the ...
Mar 06, 2012 |
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Scientists reveal how bacteria build homes inside healthy cells
(PhysOrg.com) -- Bacteria are able to build camouflaged homes for themselves inside healthy cells - and cause disease - by manipulating a natural cellular process.
Dec 20, 2011 |
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Deciphering the mechanism of an ion pump
From an analysis of the sodium-transporting vacuolar ATPases (V-ATPases) of the bacterium Enterococcus hirae, Takeshi Murata of the RIKEN Systems and Structural Biology Center, Yokohama, and colleagues recently ...
Dec 16, 2011 |
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DNA damage across a cellular barrier depends on barrier thickness
(PhysOrg.com) -- The use of nanoparticles in medicine is ever increasing and it is important to understand the effects these particles might have on human tissues and health in general.
Nanotechnology / Bio & Medicine
Dec 13, 2011 |
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Fluorescent probes increase understanding of bacterium's electron transfer
(PhysOrg.com) -- When it comes to transporting a cell's valuable electrons, the metal-reducing microbe Shewanella oneidensis only trusts stable, mature proteins, according to scientists at Pacific Northwest ...
Dec 12, 2011 |
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Researchers uncover new function for cell master regulator
(PhysOrg.com) -- TORC1 is a master regulator in cells, playing a key role in such diverse processes as gene expression and protein synthesis. While previous studies have described the role that TORC1 plays ...
Nov 29, 2011 |
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New discovery could change the face of cell-biology research
Rewrite the textbooks and revisit old experiments, because there's a new cog in our cellular machinery that has been discovered by researchers from the University of Alberta and the University of Cambridge Institute for Medical ...
Oct 11, 2011 |
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New membrane lipid measuring technique may help fight disease
Could controlling cell-membrane fat play a key role in turning off disease?
Oct 09, 2011 |
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Orchestrator of waste removal rescues cells that can't manage their trash
Just as we must take out the trash to keep our homes clean and safe, it is essential that our cells have mechanisms for dealing with wastes and worn-out proteins. When these processes are not working properly, unwanted debris ...
Sep 01, 2011 |
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