read coor pdb CTR148A_NMR_em_bcr3.pdb all rmsd coor heavy 4M-15M,18M-28M,31M-41M,43M-82M,101M-113M,116M-139M,141M-175M ave resOrd_rmsd_heavy rmsd coor backbone 4M-15M,18M-28M,31M-41M,43M-82M,101M-113M,116M-139M,141M-175M ave resOrd_rmsd_bb write best.pdb coor all all pdb quit