This Cartoon Model has been colored according to the index of
each amino acid in the polypeptide chain. Since Proteins are linear
molecules, this yields a nice color interpolation from red at the beginning
of the molecule to blue at its end in the default coloring settings.
When you press Next, an energy minimization will start. You can watch
the molecule's structural changes.
We will perform 20 steps and the current
step number will be shown in the statusbar at the bottom of the main window.
Don't worry if the simulation takes a moment to start.