At the molecular level, muscle contraction is defined by myosin molecules pulling actin filaments. New electron cryomicroscopy images with unprecedented resolution taken by researchers at Osaka University reveal unexpectedly ...
Cell & Microbiology
Mar 8, 2017
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4
Bacterial cellular membranes protrude to form flagella, which are composed of up to about 30 distinct proteins and are essential for motility. The bacterial flagellar type III export apparatuses utilize energy derived from ...
Cell & Microbiology
Jan 13, 2017
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4
Ribosomes are the cellular machines that make proteins, the molecules that carry out the majority of life's functions. To make ribosomes, cells need to make an abundance of amino acids (the raw material of proteins) and adenosine ...
Cell & Microbiology
Oct 14, 2016
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7
Spores of Bacillus bacteria can survive for years in a dormant state, and then germinate in minutes. But it has long been unclear whether germination required protein synthesis, or cellular energy packets, which are known ...
Cell & Microbiology
Sep 20, 2016
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4
Inside mammalian cells, kinesin plays the same role as do trucks and locomotives within our countries: It is the main driving force behind the transport of manufactured goods. No wheels are involved, but there are 'legs' ...
General Physics
Nov 5, 2015
4
488
Quantitative analysis of the performance of men and women professional tennis players over the past five completed seasons shows for the first time that evidence of inconsistency in women's play is likely attributable to ...
Mathematics
Aug 9, 2015
0
44
An international research group has demonstrated that protein machines, regardless of their specific functions, can collectively induce fluctuating hydrodynamic flows and substantially enhance the diffusive motions of particles ...
Cell & Microbiology
Jul 31, 2015
0
9
Bacteria have plenty of things to send out into world beyond their own boundaries: coordinating signals to other members of their species, poisons for their enemies, and devious instructions to manipulate host cells they ...
Cell & Microbiology
Jul 22, 2015
0
79
Ludwig Maximilian University of Munich researchers have elucidated the structure of a molecular machine with an atypical triangular shape that is involved in peroxisome biogenesis, and characterized its conformation in different ...
Cell & Microbiology
Jul 6, 2015
0
10
As fireflies are delighting children across the country with their nighttime displays, scientists are closing in on a better understanding of how the insects produce their enchanting glow. They report in the Journal of the ...
Biochemistry
Jul 1, 2015
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