_ndb_refine.entry_id ABC001 _ndb_refine.pdbx_refine_id 'x-ray' _ndb_refine.R_factor_all_4sig_cutoff 0.174 _ndb_refine.R_factor_obs_4sig_cutoff 0.169 _ndb_refine.number_reflns_obs_4sig_cutoff 1263 _ndb_refine.free_R_factor_4sig_cutoff 0.216 _ndb_refine.free_R_val_test_set_ct_4sig_cutoff 164 _ndb_refine.free_R_val_test_set_size_perc_4sig_cutoff 1.29