loop_ _rcsb_nmr_exptl_sample_conditions.conditions_id _rcsb_nmr_exptl_sample_conditions.temperature _rcsb_nmr_exptl_sample_conditions.pressure _rcsb_nmr_exptl_sample_conditions.pH _rcsb_nmr_exptl_sample_conditions.ionic_strength 1 298 ambient 7 '25mM NaCl' 2 298 ambient 3 '25mM NaCl'