TEMPERATURE 298 K SAMPLE DL-Methionine sulfoxide SAMPLE_CONC 100 SAMPLE_UNITS mM SOLVENT D2O BUFFER Sodium Phosphate BUFFER_CONC 50 BUFFER_UNITS mM BUFFER_2 NaAzide BUFFER_2_CONC 500 BUFFER_2_UNITS uM REFERRENCE DSS REFERRENCE_CONC 500 REFERRENCE_UNITS uM pH 7.4 SPECT_MANUFACTURER Bruker SPECT_MODEL DMX SPECT_FIELD_STRENGTH 500 EXPERIMENT_1 1D 1H EXPERIMENT_2 2D [1H,1H]-TOCSY EXPERIMENT_3 1D 13C EXPERIMENT_4 1D DEPT90 EXPERIMENT_5 1D DEPT135 EXPERIMENT_6 2D [1H,13C]-HSQC EXPERIMENT_7 2D [1H,13C]-HMBC