10 April 2009
Vol 324, Issue 5924

About The Cover

Cover image expansion

COVER The dynamic nature of the master calcium signaling protein, calmodulin, schematically illustrated by snapshots from an interpolation between its calcium-bound state (blue) and its structure bound to both calcium and a peptide derived from one of its downstream cellular targets, myosin light chain kinase (red), generated using the Yale Morph Server and PyMol software. See the special section beginning on page 197). Image: Robert Smock and Lila Gierasch