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. Author manuscript; available in PMC: 2012 Apr 4.
Published in final edited form as: Biochemistry. 2007 May 9;46(22):6525–6535. doi: 10.1021/bi700335n

Figure 4.

Figure 4

Probing the metal induced TAR structure-dynamical transition using an order tensor analysis of RDCs. Shown are the (A) inter-helical bend angle (θ), (B) inter-helical twist angle (ξ) (positive/negative values correspond to over/under twisting respectively), and (C) inter-helical mobility (ϑint) as a function of Na+ concentration. Values in the presence of 25 mM Na+/4 mM Mg2+ are shown using a horizontal line.