Collaborators from Mayo-Illinois Alliance for Technology Based Healthcare have developed a new, single molecule test for detecting methylated DNA. Methylation—the addition of a methyl group of molecules to a DNA strand—is ...
Bio & Medicine
Mar 14, 2013
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By identifying two genes required for transforming inorganic into organic mercury, which is far more toxic, scientists today have taken a significant step toward protecting human health.
Biotechnology
Feb 7, 2013
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(Phys.org)—Everyone loves a juicy, perfectly ripened tomato, and scientists have long sought ways to control the ripening process to improve fruit quality and prevent spoilage.
Biotechnology
Jan 30, 2013
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Many different tissues and organs form from pluripotent stem cells during embryonic development. To date it had been known that these processes are controlled by transcription factors for specific tissues. Scientists from ...
Cell & Microbiology
Jan 29, 2013
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Transmitting from one generation to the next the genetic message encoded in DNA is a well-understood concept in biology. There is now increasing awareness that chemical modifications of DNA and associated proteins are also ...
Biochemistry
Jan 24, 2013
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(Phys.org)—A new DNA sequencing technique has enabled researchers to map for the first time the influential chemical modifications known as methylation marks throughout the genome of a pathogenic bacterium. By comparing ...
Biotechnology
Nov 19, 2012
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To fit the two-meter long DNA molecule into a cell nucleus that is only a few thousandths of a millimetre in size, long sections of the DNA must be strongly compacted. Epigenetic marks maintain these sections, known as heterochromatin. ...
Cell & Microbiology
Sep 25, 2012
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(Phys.org)—Scientists from the Friedrich Miescher Institute for Biomedical Research have elucidated the histone modifications that lead to the sequestration of silent genes at the nuclear periphery. In a study published ...
Cell & Microbiology
Aug 31, 2012
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Two opposing teams battle it out to regulate gene expression on the DNA playing field. One, the activators, keeps DNA open to enzymes that transcribe DNA into RNA. Their repressor opponents antagonize that effort by twisting ...
Cell & Microbiology
Aug 26, 2012
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(Phys.org)—The single most important barrier to the use of lignocellulosic biomass such as switchgrass, populous, sorghum and miscanthus for production of biofuels is the resistant nature of the biomass itself. The problem ...
Biotechnology
Aug 24, 2012
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