A nonapeptide was determined to have the following amino acid composition: two Lys, two Gly, two Phe, one each of His, Leu, and Met. When the native peptide was exposed to cyanogen bromide, a heptapeptide and a dipeptide were recovered. Incubation of the native peptide with trypsin gave a pentapeptide and a tetrapeptide. Cyanogen bromide cleaves at Met (C); whereas trypsin cleaves at Lys and Arg (C). Which sequence is compatible with this data
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A nonapeptide was determined to have the following amino acid composition: two Lys, two Gly, two Phe...
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