read coor pdb LKR112_R3Cons_em_bcr3.pdb all rmsd coor heavy 7A-36A,41A-48A,51A-91A ave resSel_rmsd_heavy rmsd coor backbone 7A-36A,41A-48A,51A-91A ave resSel_rmsd_bb write selSi.pdb coor all all pdb quit