Contents

07 July 2015
Vol 8, Issue 384

About The Cover

Cover image expansion

Online Cover This week features a Research Article that describes how a protein modification called S-nitrosylation controls the brain's use of glutamate for energy or neurotransmission. The image shows a molecular model of S-nitrosylated glutamine synthetase, an enzyme that generates glutamine from glutamate. [Image: Kim A. Sharp/University of Pennsylvania]