Issues

Cover picture: Crystal structure of E118A KcsA mutant shows that the absence of the glutamate leads to changes in the position and order of two nearby arginines, supporting conclusions from functional data that these three residues interact during gating. The figure shows an alignment of the second transmembrane domain C termini between WT and the E118A mutant structures, with the relevant residues highlighted (see research article by Posson et al., 613–624).