Figure 2.

The Loop BriX database. (A) Example of a superclass containing three subclasses. The superclass contains fragments with end-to-end distance around 11.78 Å RMSD and two β-strand anchor residues. At the subclass level, fragments with similar length and backbone are grouped (length 7 for subclass 2219 and length 13 for subclass 2220 and 2221, superposition threshold of 1 Å). (B) Number of superclasses (blue) and subclasses (red) per class size, distributed in bins. In general, classes from Loop BriX are less populated than classes from BriX.