read coor pdb SR478_R3_em_bcr3.pdb all rmsd coor heavy 7M-19M,24M-43M,47M-69M,97M-109M,114M-133M,137M-159M ave resOrd_rmsd_heavy rmsd coor backbone 7M-19M,24M-43M,47M-69M,97M-109M,114M-133M,137M-159M ave resOrd_rmsd_bb write best.pdb coor all all pdb quit