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Question
Which of the following would be a possible amino acid sequence for an oligopeptide given the experimental data below?
| The amino acid composition is found to be [ala, lys, phe, met, cys, plus some decomposition products]. | |
| 2. | The peptide has a molecular weight around 700 Da and absorbs at 280 nm. |
| 3. | Treatment with carboxypeptidase results in tryptophan and a peptide. |
| 4. | CNBr treatment yields a tetrapeptide and a dipeptide. |
| 5. | Trypsin digestion produces an amino acid and a pentapeptide with met on the amino end. |
| 6. | Chymotrypsin digestion yields a dipeptide and a tetrapeptide. |
a. trp-lys-met-cys-met-ala
b. lys-met-cys-phe-ala-trp
c. trp-ala-phe-cys-met-lys
d. lys-ala-cys-phe-met-trp
e. lys-met-cys-ala-phe-trp
Answer
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