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DNA and RNA in RPitc
(A) Overall DNA and RNA path.
(B) Upstream bubble, strands separated by ELH with T further stabilized by β′ coiled-coil loop.
(C) Downstream DNA stabilized by β′ clamp and β′ jaw.
(D) Synthesized RNA and the location of σ54 RII.3.
See also Figures S5 and S6.
