data_TEST # loop_ _atom_site.group_PDB _atom_site.type_symbol _atom_site.label_atom_id _atom_site.label_comp_id _atom_site.label_seq_id _atom_site.Cartn_x _atom_site.Cartn_y _atom_site.Cartn_z ATOM C CA ALA 1 12.345 67.890 23.456 ATOM C CA GLY 2 14.567 65.432 21.098 ATOM C CA VAL 3 16.789 63.210 19.876 ATOM C CA LEU 4 18.012 61.543 17.654 ATOM C CA ILE 5 20.234 59.876 15.432 ATOM C CB ALA 1 11.000 66.000 22.000 #