A tripeptide on hydrolysis produced glycine, alanine and leucine. The structures of these amino acids are shown below. On reaction with Edman's reagent, leucine was released as the phenylhydantoin. Treatment of the tripeptide with carboxypeptidase gave glycine. H2N -CH H2N -CH OH H2N -CH OH OH CH3 ČH2CH(CH3)2 Glycine Alanine Leucine 7. Draw the structure of the tripeptide.

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