sample: 15N PfR48 conc: ca. 0.5 mM buffer: 20mM MES, 100mM NaCl, 5mM CaCl2, 10mM DTT 0.02% azide, 100% D20 pH 6.5 20C prepared by: Rong experiment: gNhsqc 10 min. instrument: INOVA 600 probe 4477 acquired by: jma 02/10/04 first time point of H/D exchange ni=64; nt=4; 10min expts