When exactly did oxygen first appear in Earth's atmosphere? Although many physical and chemical processes are thought to be responsible for that profound transformation, scientists have tried to answer at least part of that ...
Cell & Microbiology
May 6, 2010
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Researchers at Emory University School of Medicine have determined the structures of two enzymes that customize histones, the spool-like proteins around which DNA coils inside the cell.
Cell & Microbiology
Dec 20, 2009
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A study published in this week's online issue of Nature Biotechnology, demonstrates a unique and highly sensitive method for detecting methylation-associated cancers.
Biotechnology
Aug 16, 2009
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Anyone who studied a little genetics in high school has heard of adenine, thymine, guanine and cytosine - the A,T,G and C that make up the DNA code. But those are not the whole story. The rise of epigenetics in the past decade ...
Cell & Microbiology
Apr 16, 2009
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Inflammation, the body's earliest response to damage or infection, can aid the healing process and trigger an immune response against invading pathogens. But inflammation gone awry can also undermine health, as in diseases ...
Cell & Microbiology
Mar 11, 2009
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