Post date: Aug 22, 2011 8:13:11 AM
Nishima et al. did a large simulation showing a POPE bilayer being punctured by a screw-like motion of a long beta-helix. I have some reservations on the use of steered MD (they used 5 and 10 Ă…/ns), but the three animated renderings of the process are impressive: links here here and here.