Color-coded view of the configurational flexibility of K^b binding groove and peptide calculated as root mean square fluctuations (RMSF) for each individual residue of the protein from two independent MD simulations of complexes with peptide derived from the (A) K^b/SIINFEKL or (B) K^b/FAPGNYPAL structures and depicted as a color (blue to red) on a cartoon representation of K^b.

<p>The empty molecule and the K^b/C-terminally truncated peptide complex show high flexibility of the alpha helices lining the F pocket.