Friends,<br><br>1) I used swapna command with preserve true option but chimera complains it as mangled specifier. The preserve option is denoted in online documentation<br><br><a href="http://plato.cgl.ucsf.edu/chimera/docs/UsersGuide/midas/swapna.html">http://plato.cgl.ucsf.edu/chimera/docs/UsersGuide/midas/swapna.html</a><br>
<br>2) Just for a try i downloaded the 1VT7.pdb and changed the Guanine (first residue in chain A) to Adenine: swapna A :1.A but i found that added A is rotated. I mean the plane of A is not matching with that G (originally present in the structure). I am not sure if the preserve option is working. To be precise, i want added base to have the same plane as the original one.<br>
<br>Thanks,<br>Bala<br>