ABSTRACT

For Question s 4.14-4.17 , us e th e followin g information . Yo u have isolate d a n u n k n o w n peptide whos e titratio n curv e is presented i n Figure 4.16. The peptide absorbe d ultravio - let l igh t a t 28 0 nm. Treatmen t w i t h trypsi n release d fre e alanin e an d arginine . Treatmen t w i t h chymotrypsi n resulted i n quantitativ e productio n o f a neutra l tripeptid e an d a n alkaline dipeptide .