Which reagent(s) would you use for the following processes related to protein chemistry? Write the respective equations.

[answerhappygod]

Which reagent(s) would you use for the following processes
related to protein chemistry?
Write the respective equations.
a) Identification of the terminal amino residue.
b) Determination of the amino acid sequence of the peptide
Gly-Asp-Ala-Cys
c) Reversible denaturation of a protein containing disulfide
bonds
d) Hydrolysis of peptide bonds of aromatic residues of a
protein
e) Fragmentation of a protein by breaking peptide bonds on the
carbonyl side of methionines.