Contents

09 September 2014
Vol 7, Issue 342

About The Cover

Cover image expansion

Online Cover This week features a Review that discusses divergent roles for members of the sirtuin family of protein deacetylases in the regulation of the circadian clock by effects in different cellular organelles. The image is an artist's representation of a cell centered on the nucleus and divided into a light and dark side, representing the circadian rhythm. [Image: C. Bickel/Science Signaling]