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. 2018 Jan 25;19:82. doi: 10.1186/s12864-018-4481-8

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© The Author(s). 2018

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 2 — Promoter motifs for the sigma factor σ^A of C. diphtheriae. The size of the nucleotide represents the relative abundance of the particular nucleotide at this position. The −10 motif was found upstream of 1190 TSS and the −35 motif upstream of 1031 TSS. The data was visualized with Weblogo [54]