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. 2018 Sep 18;8:317. doi: 10.3389/fcimb.2018.00317

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Copyright © 2018 Zhu, Wang, Ni, Zhou, Han, Yu, Mao, Wang, Fan and He.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Identification and characterization of redox-sensing regulator Rex in SS2. (A) Schematic diagram of regions flanking rex, with the arrows indicating the direction of transcription and the numbers above indicating the sizes of the respective open reading frames in base pairs. (B) EMSA analysis shows interaction of rex promoter (Prex) with recombinant Rex (rRex) protein. Inclusion of rRex resulted in mobility shift and such interaction was concentration-dependent. (C) The promoter regions of selected genes identified in SS2-1 that contain putative Rex binding sites. The−35 regions (blue font) and−10 regions (green font) as determined by BPROM programs are shown in bold type and putative Rex-binding sites are underlined. W indicates A or T.