In the classical view of evolution, species experience spontaneous genetic mutations that produce various novel traits—some helpful, some detrimental. Nature then selects for those most beneficial, passing them along to ...
Evolution
Dec 12, 2013
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(PhysOrg.com) -- The human genome contains some 3 billion base pairs that are tightly compacted into the nucleus of each cell. If a DNA strand were the thickness of a human hair, the entire human genome would be crammed into ...
Cell & Microbiology
Jan 17, 2012
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On Earth all biology is subjected to gravity. Some biological systems require gravity for correct orientation (geotropism: plants grow up, roots grow down). In the absence of gravity even human biology is affected: astronauts ...
Biotechnology
Jan 31, 2012
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"Protein misfolding" diseases such as cystic fibrosis and Alzheimer's may be seriously exacerbated by the body's own response against that misfolding, according to a new study led by scientists at The Scripps Research Institute ...
Cell & Microbiology
Nov 18, 2014
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Virginia Commonwealth University researchers studying a key molecular player called Hsp70 that is responsible for protein homeostasis have uncovered how it binds together with another molecule responsible for intracellular ...
Cell & Microbiology
May 30, 2013
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The refractive power of the human eye lens relies on a densely packed mixture of proteins. Special protective proteins ensure that these proteins do not clump together as time passes. When this protective mechanism fails, ...
Biochemistry
Oct 23, 2013
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Studies at The University of Texas Health Science Center at San Antonio are providing basic new understanding about "heat shock proteins," also called "chaperone proteins." These proteins, first identified in cells subjected ...
Cell & Microbiology
Aug 5, 2016
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It's not just humans and animals that suffer when the mercury rises, plants feel the heat too. Heat stress is a major issue in agriculture and can significantly reduce crop yield. Even small increases in temperature can affect ...
Biotechnology
Feb 13, 2018
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The protein Hsp90 plays a significant role in the survival of cells that are exposed to stress. Researchers at the Technische Universitaet Muenchen (TUM) uncovered this protein's mode of operation some time ago - but now ...
Cell & Microbiology
Aug 23, 2010
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Venturing into space might be a bold adventure, but it may not be good for your immune system. Now a study by researchers at the University of California, Davis and published Jan. 24 in the journal PLOS ONE shows how growing ...
Plants & Animals
Jan 24, 2014
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