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. 2010 Jan 20;98(2):305–314. doi: 10.1016/j.bpj.2009.10.016

Figure 2.

Figure 2

Superposition of the DNA-binding domains of the CRPEc and CRPMt. (A) Superposition of the DNA-binding domain of the cAMP-bound CRPEc (cyan) and cAMP-free CRPMt (green) (PDB ID: 3D0S) shows the change in conformation of the D-helix and helix-turn-helix motif of the cAMP-free CRPMt. (B) Superposition of the DNA-binding domain of the cAMP-bound CRPEc (cyan) and cAMP-free CRPMt (green) (PDB ID: 3H3U) shows the major change in conformation of the D-helix. The helix-turn-helix motif takes a conformation closer to the cAMP-bound conformation of CRPEc (cyan).