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. 2015 Oct 27;10(10):e0141349. doi: 10.1371/journal.pone.0141349

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© 2015 Stas et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Fig 1 — The PXP motif (red) is conserved between the Shaker and Kv1−Kv4 subunits. The Kv7.1 subunit displays a glycine (could confer flexibility) while the Kv5, Kv6, Kv8 and Kv9 (or KvS) subunits contain residues that would promote an alpha−helical configuration. The S6c segment used to make the chimeric substitution between Kv6.4 and Kv9.3 is highlighted in bold.