Abstract
Two proposed mechanisms for 4-thiouridine generation share key cysteine persulfide and disulfide intermediates, and indirect evidence of their existence has been previously reported; chemical trapping and mass spectrometry have now provided direct and definitive evidence of these key intermediates.
Publication types
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Research Support, N.I.H., Extramural
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Research Support, Non-U.S. Gov't
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Research Support, U.S. Gov't, Non-P.H.S.
MeSH terms
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Cysteine / analogs & derivatives*
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Cysteine / chemistry
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Disulfides / chemistry*
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Enzymes / chemistry*
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Enzymes / metabolism
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Mass Spectrometry
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Molecular Structure
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Thiouridine / chemistry
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Thiouridine / metabolism*
Substances
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Disulfides
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Enzymes
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Thiouridine
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cysteine persulfide
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Cysteine