Dazzling snapshots show how ions power nerve signals round the body.
Hole story: channels like this underlie all our movements and thoughts.
© Nature/Morais-Cabral et al.
The seventh seal: ions other than potassium cant get through
© Nature/Zhou et al.
"Potassium channels underlie all our movements and thoughts," says Rod MacKinnon of Rockefeller University in New York. His team has now unravelled the molecular mechanics of these minute protein pores. Some say the work merits a Nobel Prize.
Potassium (K+) channels power the transmission of nerve signals through the body and the brain by ushering K+ ions in and out of our cells. MacKinnon and his colleagues have taken high-resolution snapshots of the channels in action, revealing how, and how fast, individual K+ ions pass through1,2. Its a remarkable feat - the K+ channels aperture is more than a hundred thousand times thinner than a sheet of paper, at under six Angstroms wide.
Overlooked molecular machine in cell nucleus may hold key to treating aggressive leukemia
23.04.2019 | Cincinnati Children's Hospital Medical Center
Bacteria use their enemy -- phage -- for 'self-recognition'
23.04.2019 | Chinese Academy of Sciences Headquarters
Researchers led by Francesca Ferlaino from the University of Innsbruck and the Austrian Academy of Sciences report in Physical Review X on the observation of supersolid behavior in dipolar quantum gases of erbium and dysprosium. In the dysprosium gas these properties are unprecedentedly long-lived. This sets the stage for future investigations into the nature of this exotic phase of matter.
Supersolidity is a paradoxical state where the matter is both crystallized and superfluid. Predicted 50 years ago, such a counter-intuitive phase, featuring...
A stellar flare 10 times more powerful than anything seen on our sun has burst from an ultracool star almost the same size as Jupiter
A localization phenomenon boosts the accuracy of solving quantum many-body problems with quantum computers which are otherwise challenging for conventional computers. This brings such digital quantum simulation within reach on quantum devices available today.
Quantum computers promise to solve certain computational problems exponentially faster than any classical machine. “A particularly promising application is the...
The technology could revolutionize how information travels through data centers and artificial intelligence networks
Engineers at the University of California, Berkeley have built a new photonic switch that can control the direction of light passing through optical fibers...
Physicists observe how electron-hole pairs drift apart at ultrafast speed, but still remain strongly bound.
Modern electronics relies on ultrafast charge motion on ever shorter length scales. Physicists from Regensburg and Gothenburg have now succeeded in resolving a...
17.04.2019 | Event News
15.04.2019 | Event News
09.04.2019 | Event News
23.04.2019 | Information Technology
23.04.2019 | Earth Sciences
23.04.2019 | Life Sciences