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Correlation of amide 1H and 15N chemical shifts of recombinant human ubiquitin in aqueous buffer with those of the protein encapsulated in a reverse micelle dissolved in pentane. In both cases the protein was solvated by aqueous buffer containing 50 mM sodium acetate, pH 5, and 250 mM NaCl. 15N- heteronuclear single quantum correlation spectra were obtained at 25°C at 750 MHz (1H). (Upper) The comparison of amide 1H chemical shifts. (Lower) The comparison of 15N chemical shifts.
