'Silent' DNA speaks up for the first time
By moderately raising the temperature of cells, biologists have broken through what was considered an impermeable barrier that kept half the genes in some cells "silent." The surprising results, in which these heated genes reached 500 times their normal rate of expression, could lead to better understanding of cellular processes involved in aging, fever and toxicity. Contact: Tom Garritano tgarrita@nsf.gov 703-292-8070 National Science Foundation Edward A. Sekinger and David S. Gross Silenced Chromatin Is Permissive to Activator Binding and PIC Recruitment Cell 2001 105: 403-414. [Summary] [Full Text]
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