Cover picture: Molecular associations between high affinity anti-hen egg white lysozyme (HEL: red) antibody, HyHEL10 (heavy chain: purple; light chain: yellow), and HEL. Structurally and/or energetically important epitope and paratope residues are shown in green, with their side-chains on. The epitope residues and their positions are labeled. See the article by Sinha et al. on p. 2946.