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. 2017 Sep 25;45(19):11327–11340. doi: 10.1093/nar/gkx813

Figure 3.

Figure 3.

Catalytic properties of 531 and 529 RNAP variants in in vitro transcription assays. (A) The image of radioactive RNA products of initiation after electrophoretic separation. (B) Quantitation of the results of (A). (C) Performance of 529 substitutions in the conditions of (A). (D) Quantitation of (C). (E) Elongation properties of 529 mutants. (F) The mechanism proposed to explain the positive effect of 531-R and -K substitutions on promoter clearance. Error bars represent SD from three independent experiments.