There is another free tool (Avogadro) which is pretty easy to handle this also.<br><br>Try <br><br><a href="http://avogadro.openmolecules.net/wiki/Get_Avogadro">http://avogadro.openmolecules.net/wiki/Get_Avogadro</a><br><br>
in Build --> Inert ---> Peptides,<br><br>Which is very easy to use. you can choose Straight line, beta sheet or alpha helix or other.<br><br>and save as .pdb<br><br>lina<br>