Frederico, 1. You can delete chains you don't need or 2. Tell MODELLER to read what you need (MODEL_SEGMENT command) Unless you had something else in mind...? Good luck, Bozidar > Hi, > > Please, I'm trying to use a tetrameric protein > template, but I'm getting some trouble. The pdb file > show the chains A, B, C and D atoms positions. So what > do I have to change in my alingment an TOP files to > run modeller correctly? > > Frederico Moreno > > _______________________________________________________________________ > Yahoo! PageBuilder > O super editor para criação de sites: é grátis, fácil e rápido. > http://br.geocities.yahoo.com/v/pb.html -- "Nothing great was ever achieved without enthusiasm." Ralph Waldo Emerson