State peptide undergoes a single round of edman degradation

Reference no: EM13184590

A sample of an unknown peptide undergoes a single round of Edman degradation, which liberates ATZ-Gly. Another sample of the peptide is treated with trypsin, and a third sample is treated with chymotrypsin. The table below shows the fragments.

Tryptic fragments:

Phe-Ser

Gly-Val-Tyr-Arg

Asn-Tyr-Ala-Pro-Thr-Cys-Val-Gln-Lys

Chymotryptic fragments:

Arg-Asn-Tyr

Ala-Pro-Thr-Cys-Val-Gln-Lys-Phe

Ser

Gly-Val-Tyr

A) line up the fragments so that the fragments with the same sequences overlap.

B) Write the sequence of the peptide

Reference no: EM13184590

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