
TY  - JOUR
A1  - Casagranda, F 
A1  - Duggan, BM 
A1  - Kirkpatrick, A 
A1  - Laslett, RL 
A1  - Wilshire, JFK 
T1  - Studies in Thiohydantoin Chemistry. II. C-Terminal Sequencing of Peptides
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1996
VL  - 49
IS  - 5
SP  - 551
EP  - 560
KW  - 
UR  - https://doi.org/10.1071/CH9960551 
N2  - An investigation has been carried out into the thiocyanate degradation (AcOH/Ac2O/HSCN) procedure as it relates to the C-terminal sequencing of peptides, particular emphasis being placed on the sequencing of amino acid residues containing sensitive or functional side chains. Attempted C-terminal sequencing of several serine- and threonine -containing peptides stopped at these particular residues, and did not proceed further. It is concluded that sequencing of most of the common amino acids is achievable but that significant problems will have to be overcome before routine sequencing of proline , serine, threonine, arginine , and, in particular, aspartic and glutamic acids can be claimed. The action of base on the thiohydantoin derivatives of N,S- diacetylcysteine and N,S- diacetyl-&#946;-methylcysteine causes &#946;-elimination of thioacetic S-acid to give the corresponding olefinic thiohydantoins. 
ER  -

