Single-molecule spectroscopy of a structural change of a protein

Hiroyuki Oikawa, Satoru Fujiyoshi, Takehisa Dewa, Mamoru Nango, Michio Matsushita

Research output: Contribution to journalArticlepeer-review


Temperature dependence between 5 and 18 K of the spectral jump of individual B800 pigments in a light-harvesting 2 complex, revealed structural change of the complex occurring at a rate independent of temperature. The process is ascribed to tunneling of a proton of hydrogen bond at the pigment binding site.

Original languageEnglish
Pages (from-to)80-81
Number of pages2
Issue number2
Publication statusPublished - 2011 Feb 1


  • Binding site
  • Hydrogen bond
  • Light-harvesting 2 complex
  • Proton tunneling
  • Single-molecule spectroscopy
  • Spectral jump

ASJC Scopus subject areas

  • Chemical Engineering(all)


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