Organic Chemistry
Which specific amino acid does cyanogen bromide cleave at the carboxyl group in a peptide chain?
What role does the nucleophilic sulfur in methionine play in the mechanism of cyanogen bromide-mediated cleavage?
Why does the carbonyl oxygen participate in an intramolecular SN2 reaction with the gamma carbon in the methionine derivative?
During the reaction of methionine with cyanogen bromide, a sulfonium ion is formed. What characteristic makes it a good leaving group?
What is a potential limitation of using cyanogen bromide in peptide sequencing?
