FIGURE 4.

Diagram of the solution structure of cCTnC·2Ca²⁺·EGCg. a, ensemble of the 30 lowest energy structures of EGCg in association with cCTnC·2Ca²⁺ is depicted with just the backbone atoms of cCTnC drawn as ribbons and of EGCg as sticks. The ensemble of cCTnC·2Ca²⁺ is colored in gray; the Ca²⁺ ions are shown as gray spheres, and the ensemble of EGCg is colored with carbon atoms in purple and oxygen atoms in red. b, 90° rotation about the y axis. c, ensemble of EGCg and the chemical groups of EGCg are labeled. d, schematic representation of the lowest energy structure of the ensemble of cCTnC·2Ca²⁺·EGCg with the helices labeled and consistent coloring as above. The orientation of cCTnC is the same as in a.