The mechanism of antiparallel β-sheet formation based on conditioned self-avoiding walk Boon Chong Goh, Hon Wai Leong, Xiaohui Qu and Lock Yue Chew Eur. Phys. J. E, 35 4 (2012) 27 Published online: 18 April 2012 DOI: 10.1140/epje/i2012-12027-8