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. 2011 Jul 12;6(7):e21974. doi: 10.1371/journal.pone.0021974

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Chatterjee et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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(A–B) Transcription rates k_a and k_r from promoters pA and pR respectively in presence of TI, the RNAP firing rates and from promoters pA and pR respectively in absence of TI, and the net rate of RNAP collisions due to sitting duck collisions and collision between elongating RNAP, shown for different concentrations of repressor ScbR. (C) Transcription rate of different sizes of truncated RNA (<53 nt) and full-length RNA (a and r) from promoters pR and pA for different levels of repressor R.

Inline graphic — (A–B) Transcription rates k_a and k_r from promoters pA and pR respectively in presence of TI, the RNAP firing rates and from promoters pA and pR respectively in absence of TI, and the net rate of RNAP collisions due to sitting duck collisions and collision between elongating RNAP, shown for different concentrations of repressor ScbR. (C) Transcription rate of different sizes of truncated RNA (<53 nt) and full-length RNA (a and r) from promoters pR and pA for different levels of repressor R.