News tagged with atp adenosine triphosphate
Cells use water in nano-rotors to power energy conversion
Researchers from the Max Planck Institute of Biophysics in Frankfurt, and Mount Sinai School of Medicine in New York have provided the first atomic-level glimpse of the proton-driven motor from a major group of ATP synthases, ...
Aug 03, 2010 |
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Search results for atp adenosine triphosphate
Biophysics: Order in chaos
The process of skeletal muscle contraction is based around protein filaments sliding inside sarcomeres — the structural units of muscle fiber. Inside each sarcomere is a set of filament motors, which ...
May 03, 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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Small-scale soil studies provide big benefits
When it comes to studying microbial communities in soil, the smaller the sample, the better. Only by approaching the scale at which microbes interact and function, the micron scale, can scientists understand ...
Feb 24, 2012 |
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Looks like we’re still looking for earthly life forms on other planets
In late 2010, NASA set the Internet buzzing when it called a press conference to discuss an astrobiological finding that would impact the search for extraterrestrial life. Many speculated that some primitive ...
Feb 02, 2012 |
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Scientists build working model of life's engine
(PhysOrg.com) -- Researchers at the University of Southern California have built a theoretical working model of the cellular engine that powers all life.
Jan 31, 2012 |
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New study sheds light on evolutionary origin of oxygen-based cellular respiration
Researchers at the RIKEN SPring-8 Center in Harima, Japan, have clarified the crystal structure of quinol dependent nitric oxide reductase (qNOR), a bacterial enzyme that offers clues on the origins of our ...
Jan 22, 2012 |
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A salt-free primordial soup?
Most scientists who study the origin of life assume that it occurred in the ocean. But a minority view is that ions in seawater may interfere with prebiotic chemistry, making a freshwater environment more ...
Jan 19, 2012 |
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Fewer animal experiments thanks to nanosensors
Experiments on animals have been the subject of criticism for decades, but there is no prospect of a move away from them any time soon. The number of tests involving laboratory animals has in fact gone up. ...
Nanotechnology / Bio & Medicine
Jan 03, 2012 |
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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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Perfect micro rings woven from muscle fibers: A biological model system that dead-ends in 'absorbing state'
Supplied with sufficient energy, a freight train would ride the rails as far as they go. But nature also knows systems whose dynamics suddenly turn into a kind of endless loop. Like in a hamster wheel, a train ...
Nov 15, 2011 |
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List of search results for atp adenosine triphosphate
