Still not much is here on this page, things will be added soon, but some beautiful pictures are availbale thanks to Vijay Pande.
This is an interesting thing drawn here. For one, it is a globular
lattice heteropolymer, and its primary structure (the sequence in which
different colors appear along the chain) is designed in an intelligent
way. At the same time, the native structure shown here has a knot
(please, excercise your spatial imagination!). Thus, the sequence
shown here is smart enough to provide folding into the knotted conformation.