Fig. 2.

Ensemble of the 10 lowest energy structures of GB1, calculated from a total of 7,826 ¹³C–¹³C, ¹⁵N–¹⁵N, and ¹H–¹H distance restraints. The bbRMSD for all residues is 1.01 ± 0.13 Å, and the heavy atom RMSD is 1.52 ± 0.12 Å. (a) Line representation including all backbone carbon (cyan), amide nitrogen (blue), amide proton (white) and carbonyl oxygen (red) atoms. (b) Diagram representation indicating ordered secondary structure elements (helix in purple, strands in yellow, turns in cyan, coil in white).