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. 2015 Apr 13;7:10.3402/jom.v7.26974. doi: 10.3402/jom.v7.26974

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© 2015 Rolf Claesson et al.

This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License, permitting all non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 1 — Schematic illustration of the leukotoxin promoter from A. actinomycetemcomitans genotype JP2, non-JP2, IS, and the most recent isolate 456A1. (a) The leukotoxin promoter region of A. actinomycetemcomitans (non-JP2): 1,109 bp (the sequence from the first nucleotide after the stop codon of glyA to the stop codon of promoter region is incorporated) (11). (b) The position of the 530-bp deletion (JP2) within the promoter region (9). (c) The position of the 886-bp insertion sequence (IS) within the promoter region (10). (d) The position of the 640-bp deletion (456 A1 isolate) within the promoter region (this study).