Cleavage method for acyl thiohydantoins and use of the method in

Chemistry: analytical and immunological testing – Peptide – protein or amino acid – Amino acid or sequencing procedure

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436161, 530345, 530402, 530412, G01N 3368

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active

051852667

ABSTRACT:
Disclosed is a method for enhancing the cleavage of an acyl thiohydantoin bond, for example, for use in C-terminal peptide sequencing. An acyl thiohydantoin is alkylated to form an adduct on the thiohydantoin, and the adduct-containing thiohydantoin is cleaved at its acyl bond by reaction with a cleaving agent under substantially anhydrous, acidic conditions. In C-terminal amino acid sequencing, the cleaved product is analyzed to identify the C-terminal amino acid.

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