read coor pdb CTR148A_R3_em_bcr3.pdb all rmsd coor heavy 4M-14M,18M-28M,31M-40M,43M-82M,102M-112M,116M-126M,129M-138M,141M-180M ave resOrd_rmsd_heavy rmsd coor backbone 4M-14M,18M-28M,31M-40M,43M-82M,102M-112M,116M-126M,129M-138M,141M-180M ave resOrd_rmsd_bb write best.pdb coor all all pdb quit