Complete Hydrolysis of a Hexapeptide Gives 2 Gly, Leu, Phe

question 65

Short Answer

Complete hydrolysis of a hexapeptide gives 2 Gly, Leu, Phe, Pro, and Tyr. Reaction of the peptide with phenylisothiocyanate gave the phenylthiohydantoin of Pro. Partial hydrolysis of the peptide gave the following fragments: Phe-Gly-Tyr, Gly-Phe-Gly, Pro-Leu-Gly, Leu-Gly-Phe. What is the structure of the peptide?

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Definitions:

Monthly

Occurring or done once a month.

Compounded Annually

Interest calculation method where interest is added to the principal once a year, allowing the total sum to grow at an annual rate.

Accumulate Interest

The process by which earned interest is added to the principal, allowing future interest calculations to be based on the increased balance.

Constant Amount

A fixed sum that does not change over a specified period.