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Genetic and transcriptomic organization of endA and phoA. (Top) Schematic representation of the genetic organization. Gene numbers or corresponding annotations are given. Arrows indicate the positions of the corresponding primer pairs. (Bottom) RT analysis of the transcript. −, negative control with no reverse transcriptase added to the reaction mixture; +, standard RT-PCR; c, control reaction with chromosomal DNA as the template. CHP, conserved hypothetical protein.
