On 4/25/11 11:49 PM, Sangita Kachhap wrote: > I have a pdb file and coordinate of 13 amino acid (N-terminal arm)are missing in > this pdb file. > > Is it possible to generate coordinte of these missing residue?
Sure; see http://salilab.org/modeller/wiki/Missing%20residues
However, the coordinates are unlikely to be correct, since your missing residues are at the terminus. Since only one end is anchored, there's a lot of conformational space to explore. Thus, I would suggest you build a model without this terminal region.
Ben Webb, Modeller Caretaker