Figure 2 - full size

 

Figure 2.
Figure 2. A scheme of duodenase secondary structure topology. -strand and helix elements are presented by arrows and helices, respectively. Only one hydrogen nonbonded residue in b conformation is allowed for inclusion at -strand termini.

The above figure is reprinted by permission from John Wiley & Sons, Inc.: Proteins (2000, 41, 8-0) copyright 2000.