Cu(I) luminescence from the tetranuclear Cu4S4 cofactor of a synthetic 4-helix bundle

Olesya A. Kharenko, David C. Kennedy, Borries Demeler, Michael J. Maroney, Michael Y. Ogawa

Research output: Contribution to journalArticle

44 Scopus citations

Abstract

The addition of Cu(I) to the random-coil peptide, C16C19-GGY, produces a self-organized, metal-bridged 4-helix bundle which displays an intense room-temperature luminescence at 600 nm. Emission, UV, and CD titrations along with X-ray absorption studies indicate that the luminescent cofactor is likely a Cu4S4 cluster in which each Cu atom is bridged by the side chains of two cysteine residues and has terminal N/O ligation.

Original languageEnglish (US)
Pages (from-to)7678-7679
Number of pages2
JournalJournal of the American Chemical Society
Volume127
Issue number21
DOIs
StatePublished - Jun 1 2005

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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