A pentapeptide was found to contain the amino acids ala, gly, met, phe, and ser. Partial hydrolysis of the pentapeptide gave the dipeptides gly-ser, met-phe, ala-gly, and ser-met. What is the sequence of the pentapeptide?

Question

Quizplus · Accepted Answer

The dipeptides formed upon partial hydrolysis indicate the sequence of amino acids in the pentapeptide. The presence of ala-gly and gly-ser suggests that ala is at the beginning, followed by gly and then ser. The presence of ser-met and met-phe indicates that ser is followed by met, which is followed by phe, making the sequence ala-gly-ser-met-phe.

A Pentapeptide Was Found to Contain the Amino Acids Ala