Which chemical agent is known to cleave peptide bonds on the carboxyl side of methionine residues?

How does hydrazine help in identifying the C-terminal amino acid residue of a peptide?

Why is iodoacetate used in conjunction with beta mercaptoethanol during protein sequencing?

Why is it important to cleave disulfide bonds before Edmond degradation sequencing?

Given a peptide sequence Gly-Met-Ala-Cys, what are the expected fragments after treatment with cyanogen bromide?

What is the role of iodoacetate in the treatment of proteins?

What is the chemical structure of hydrazine?