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. 2019 Jun 20;15(6):e1007826. doi: 10.1371/journal.ppat.1007826

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© 2019 Chang 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 credited.

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Fig 5 — (A). A ribbon diagram of the A26^1-397 structure. The α-helices and β-strands are colored in cyan and yellow, respectively. Two domains, NTD (aa 17–228) and CTD (aa229-364), are shown and highlighted in cornflower blue and magenta, respectively. (B). The secondary structural elements are shown above the amino acid sequences, with cyan cylinders and yellow arrows representing α-helices and β-strands, respectively. (C). The His-cation and AniAni pairs in the recombinant A26^1-397 structure. The amino acids that involve in His-cation and AniAni pairs are shown as ball and stick models. Green arrows show the position of His48 and His53.