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. 2007 May 15;21(10):1258–1272. doi: 10.1101/gad.1520507

Figure 2.

Figure 2.

Binary interaction of ArgP with argO regulatory region. In A–C, bands corresponding to free DNA (F) and to DNA in binary complex with ArgP (B) are marked. (A) Electrophoretic mobility of radiolabeled 427-bp argO fragment with indicated monomer concentrations of ArgP in the absence or presence of coeffectors Arg or Lys. (B) Electrophoretic mobility of radiolabeled 427-bp argO fragment (wild type) and its deletion derivatives (described in text) in the absence or presence of 20 nM ArgP (monomer). (C,D) Electrophoretic mobility of radiolabeled fragments corresponding to indicated regions of argO in the absence or presence of ArgP (20 nM monomer) and Lys. Below each lane is given the value, obtained from densitometry, for the fraction of labeled DNA bound by the protein.