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. 2015 Apr 8;3:46. doi: 10.3389/fbioe.2015.00046

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Copyright © 2015 Fehér, Libis, Carbonell and Faulon.

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) or licensor 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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Fluorescence response of BL21DE3 cells carrying pBFR1k_RFP_8FapR sensor plasmid and (A) pACYCmmsA, (B) pACYCcagg1256, (C) pACYCMaccABCD, or (D) pACYCmatCatoDA. The medium was supplemented with β-alanine for pACYCmmsA and pACYCcagg1256, and with Na-malonate for pACYCmatCatoDA. Colors indicate the concentration of IPTG used for induction: dark blue: 0.01 mM; magenta: 0.1 mM; yellow: 0.3 mM; cyan: 0.6 mM; purple: 1 mM; orange: 10 mM.