A tripeptide (X) on partial hydrolysis gave two dipeptides Identify the tripeptide.

Question

A tripeptide (X) on partial hydrolysis gave two dipeptides <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/6cd6cc92185da32516c5a907367cc831-.png" /> Identify the tripeptide. (A) Glu-Cys-Gly (B) Gly-Glu-Cys (C) Cys-Gly-Glu (D) Cys-Glu-Gly

Tardigrade Admin · Accepted Answer

Since the tripeptide on hydrolysis gave two dipeptides Glu-Cys and Cys-Gly. Hence, cystine must be in between glutamic acid and glycine as given below. <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/b8abee201f14cf1faf16a43769220b1f-.png" />

Q. A tripeptide (X) on partial hydrolysis gave two dipeptides Identify the tripeptide.

Glu-Cys-Gly

Gly-Glu-Cys

Cys-Gly-Glu

Cys-Glu-Gly

Since the tripeptide on hydrolysis gave two dipeptides Glu-Cys and Cys-Gly. Hence, cystine must be in between glutamic acid and glycine as given below.

Q. A tripeptide $(X)$ on partial hydrolysis gave two dipeptides

Identify the tripeptide.