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Abstract

Invited for this months cover is the group of Prof. Maxim V. Berezovski. The cover picture shows the two-dimensional separation of unfolded (green) and folded (red) forms of G-quadruplex (GQ) DNA. The first dimension is kinetic capillary electrophoresis (KCE) separation of unfolded and folded DNA with different K+ concentrations in solution; the second dimension is ion mobility mass spectrometry separation of DNA conformers in the gas phase. DNA folding into a compact GQ structure is mediated by K+ ions. For more details, see the Full Paper on p. 58 ff.