Direct evidence for enzyme persulfide and disulfide intermediates during 4-thiouridine biosynthesis.

@article{Wright2006DirectEF,
  title={Direct evidence for enzyme persulfide and disulfide intermediates during 4-thiouridine biosynthesis.},
  author={Chapman M Wright and Glenn D. Christman and Ann M Snellinger and Murray V Johnston and Eugene G. Mueller},
  journal={Chemical communications},
  year={2006},
  volume={29},
  pages={3104-6}
}
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. 

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