What material can be used repetitively (on a given sample)to sequence a polypeptide from the N-terminal end?

Question

Quizplus · Accepted Answer

The Edman reagent can be used repetitively to sequence a polypeptide from the N-terminal end. It works by selectively cleaving off the N-terminal amino acid residue, which can then be identified and used to build up the sequence one residue at a time. This process can be repeated multiple times to sequence longer polypeptides.

What Material Can Be Used Repetitively (On a Given Sample)to