This Week in Nature | GenomeWeb

This Week in Nature

In the current issue of Nature, scientists led by the University of Pennsylvania's Shelley Berger used chIP to study how Sir2 in yeast, which is known to deacetylate histone H4 lysine 16 and play a role in aging, affects cellular longevity. She found that in old yeast cells, a decrease in Sir2 was met by an increase in H4 lysine 16 acetylation and loss of histones at specific subtelomeric regions, resulting in "compromised transcriptional silencing at these loci."

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An opinion piece in the New York Times urges lawmakers to keep genetic protections in place.

Research funding in Canada is to remain mostly the same, ScienceInsider reports.

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The Bill and Melinda Gates Foundation embarks on an open-access publishing path.