read coor pdb SGR145_R3Cons_em_bcr3.pdb all rmsd coor heavy 20A-36A,42A-82A,84A-139A,147A-175A,184A-195A ave resOrd_rmsd_heavy rmsd coor backbone 20A-36A,42A-82A,84A-139A,147A-175A,184A-195A ave resOrd_rmsd_bb write best.pdb coor all all pdb quit