On Friday, November 19, 2010 02:55:54 pm Srivastava, Dhiraj (MU-Student) wrote: > Hi All > does anyone know any software that can calculate and print out RMSD of > every residue (c alpha will be good) for homologous structures which has only > 30-40 % sequence similarity? I looked on the web but all the software that I > found require the sequence to be the same for both structure.
This is not a well-defined calculation. In regions where the structures do not superimpose well, how do you decide which C-alpha pairs with which? What about insertions/deletions? Usually it only makes sense to calculate RMSD over those residues which line up structurally, so it won't be "every residue". Ethan -- Ethan A Merritt Biomolecular Structure Center, K-428 Health Sciences Bldg University of Washington, Seattle 98195-7742