Development of a peptide-based fluorescent probe for biological heme monitoring

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Heme plays a vital role in cell biology and dysregulation of heme levels is implicated in a wide range of diseases. However, monitoring heme levels in biological systems is currently not straightforward. A short synthetic peptide probe containing 7-azatryptophan is shown to bind hemin in vitro with quenching of the azatryptophan fluorescence. This chemical tool can be used to detect the change in free heme induced in human skin cells upon exposure to UVA irradiation.

Original languageEnglish
Pages (from-to)467-471
Number of pages5
JournalOrganic and Biomolecular Chemistry
Issue number3
Early online date18 Dec 2018
Publication statusPublished - 21 Jan 2019


  • Cell Line
  • Fluorescent Dyes/chemical synthesis
  • Heme/analysis
  • Humans
  • Molecular Conformation
  • Peptides/chemical synthesis
  • Spectrometry, Fluorescence
  • Ultraviolet Rays


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