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. Author manuscript; available in PMC: 2014 Feb 1.
Published in final edited form as: Biomol Concepts. 2012 Feb 10;3(2):175–182. doi: 10.1515/bmc-2011-0063

Figure 4. Dynamics of NtrC.

Figure 4

(A) Superimposition of the NMR structures of the N-terminal domain of unphosphorylated, inactive NtrC (blue, PDB 1DC7) and active NtrC (orange, PDB 1DC8) states are superimposed. (B) NMR 15N backbone Rex values (millisecond-microsecond motions) superimposed on unphosphorylated, inactive NtrC (PDB 1DC7). These data were adapted with permission from Ref (21). The NMR exchange term Rex is shown on a continuous color scale from red to blue. The color scale indicates the extent of conformational exchange between states that sense different chemical environments.