Hi, The bend of the modeled three strands long sheet differs too much from the template. Independently that perhaps that have meaning. I want to make closer to the template. It is not clear (or I am missing it ) if is possible restrains between model and template. Thanks in advance Mario -- ========================================================================= Mario A. Bianchet, Ph.D. | "> Assistant Professor of Neurology, | http://abaco.med.jhmi.edu/~bianchet Biophysics & Biophysical Chemistry | 725 N.Wolfe st, WBSB 608B | Baltimore, Maryland, 21205, USA Structural Enzymology | Phones: +1 (443) 591-7583 (cell) & Thermodynamics Group | +1 (410) 614-8221(work) Johns Hopkins School of Medicine | fax: +1 (410) 955-0637 ========================================================================= |