Conversion of S-phenylsulfonylcysteine residues to mixed disulfides at pH 4.0: utility in protein thiol blocking and in protein-S-nitrosothiol detection

Author:

Reeves B. D.123,Joshi N.123,Campanello G. C.456,Hilmer J. K.123,Chetia L.123,Vance J. A.123,Reinschmidt J. N.123,Miller C. G.123,Giedroc D. P.456,Dratz E. A.123,Singel D. J.123,Grieco P. A.123

Affiliation:

1. Department of Chemistry and Biochemistry

2. Montana State University

3. Bozeman, USA

4. Department of Chemistry

5. Indiana University

6. Bloomington, USA

Abstract

A protocol denoted as the thiosulfonate switch featuring sequential protein thiol blocking and conversion of protein-S-nitrosothiols to mixed disulfides bearing a fluorescent probe at pH 4.0 is reported.

Publisher

Royal Society of Chemistry (RSC)

Subject

Organic Chemistry,Physical and Theoretical Chemistry,Biochemistry

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