Equilibrium denaturation curves for the CTPR, CTPR-YD, and CTPR-YD-loop proteins fitted globally to a 1D heteropolymer Ising model. (a) Topologies used for each protein when fit to the Heteropolymer Ising model are shown as follows: CTPR repeat (red), the CTPR-YD repeat (black), and the CTPR-YD-loop repeat (green). (b) Equilibrium denaturation curves for the CTPR, CTPR-YD, and CTPR-YD-loop proteins fitted globally to a 1-D Heteropolymer Ising model. The minimal unit of repetition was set as an individual helix-turn-helix-loop repeat. To see this figure in color, go online.