| Hi, I want to graft the loop from some other protein taken from pdb to my protein structure. I tried modeling it on my own but some parts of the secondary structure (beta sheet) also change into loop while loop modeling .. So I want to fix those two ends of the beta sheet where the loop is present so that these end should not change to loop region. Is it possible using modeller and if it's possible .. is it logically correct as during my modeling study I found that some part of beta sheets get converted to loop .. so fixing the ends of beta sheet while loop modeling would be sensible or not ?? Pls guide ----------------- Bharat |