MODELLER (copyright © 1989-2012 Andrej Sali) is maintained by Ben Webb at the Departments of Biopharmaceutical Sciences and Pharmaceutical Chemistry, and California Institute for Quantitative Biomedical Research, Mission Bay Byers Hall, University of California San Francisco, San Francisco, CA 94158-2330, USA. Any selling or distribution of the program or its parts, original or modified, is prohibited without a written permission from Andrej Sali.