Light is crucial for photosynthetic organisms, but one can have too much of a good thing. Excess light can harm organisms when the amount of energy absorbed exceeds the rate of carbon fixation.
Cell & Microbiology
Jun 7, 2013
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The tight wrapping of genomic DNA around nucleosomes in the cell nucleus makes it unavailable for gene expression. A team of Ludwig-Maximilians-Universitaet (LMU) in Munich now describes a mechanism that allows chromosomal ...
Biochemistry
May 23, 2013
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Light and x-ray scattering experiments have revealed the structure of nanoparticle dimers linked by flexible DNA chains. These dimers were basic units in a multi-scale,hierarchical assembly, and served as a model system ...
Bio & Medicine
Jan 16, 2013
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The endoplasmic reticulum of cells provides a pivotal quality-control system that eliminates improperly folded, or misfolded, glycoproteins, such as antibodies and hormones. The UDP-glucose:glycoprotein glycotransferase (UGGT) ...
Biochemistry
Oct 3, 2012
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Excessive exposure to ultraviolet (UV) radiation of sunlight can result in skin damage and may even induce skin cancers. Irradiation with UV light causes mutations in the DNA, which can interfere with or even inhibit the ...
Biochemistry
Nov 28, 2011
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Trios of tungsten atoms are greatly influenced in their migration across the wilds of a tiny particle by the shape of the particle, according to a team of experts, including Pacific Northwest National Laboratory's Dr. Fei ...
Nanomaterials
Sep 15, 2011
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RUDN chemists developed a catalyst to oxidize alkanes without additional heating and under regular pressure. This will simplify the process of obtaining alcohols, acids, and other substances used to manufacture organic products. ...
Materials Science
Feb 11, 2019
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Unprecedented single molecule imaging movies of living cell membranes, taken by a research team based at Kyoto University and the University of New Mexico, have clarified a decades-old enigma surrounding receptor molecule ...
Cell & Microbiology
Feb 7, 2011
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