Cover image

Crystal structure of Bacillus subtilis cyclic di-AMP riboswitch ydaO (Protein Data Bank code: 4w90; Jones CP, Ferré-D'Amaré AR. 2014. Crystal structure of a c-di-AMP riboswitch reveals an internally pseudo-dimeric RNA. EMBO J 33: 2692–2703). Image details show RNA­—ribbon-plate representation, yellow; U1A protein—ribbon representation, magenta; cyclic dimeric AMP—spacefilling representation, turquoise. The image was generated with the Discovery Studio Visualizer. Cover image provided by the Jena Library of Biological Macromolecules—JenaLib (jenalib.leibniz-fli.de).