Determine the amino acid sequence of a polypeptide from the following
Chapter 21, Problem 42(choose chapter or problem)
Determine the amino acid sequence of a polypeptide from the following data:Acid-catalyzed hydrolysis gives Ala, Arg, His, 2 Lys, Leu, 2 Met, Pro, 2 Ser, Thr, and Val.Carboxypeptidase A releases Val.Edmans reagent releases PTH-Leu.Treatment with cyanogen bromide gives three peptides with the following amino acid compositions:1. His, Lys, Met, Pro, Ser 2. Thr, Val 3. Ala, Arg, Leu, Lys, Met, SerTrypsin-catalyzed hydrolysis gives three peptides and a single amino acid:1. Arg, Leu, Ser 3. Lys2. Met, Pro, Ser, Thr, Val 4. Ala, His, Lys, Met
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