read coor pdb HR5546A_R3_em_bcr3.pdb all rmsd coor heavy 15A-32A,34A-37A,42A-47A,53A-57A,60A-73A,75A-79A,85A-91A,100A-106A,108A-116A ave resOrd_rmsd_heavy rmsd coor backbone 15A-32A,34A-37A,42A-47A,53A-57A,60A-73A,75A-79A,85A-91A,100A-106A,108A-116A ave resOrd_rmsd_bb write best.pdb coor all all pdb quit