Dependence of oxygen quenching of intercalated methylene blue triplet lifetime on DNA base‐pair composition

Bruce Berkoff, Mike Hogan, Jane Legrange, Robert Austin

Research output: Contribution to journalArticle

17 Scopus citations

Abstract

We utilize the dynamic quenching of the triplet state of methylene blue by molecular oxygen to observe changes in the rate at which oxygen can penetrate the helix as a function of base‐pair composition. The results indicate that the interior of the oligonucleotide dA‐dT is more accessible than dG‐dC to small molecules such as dioxygen.

Original languageEnglish (US)
Pages (from-to)307-316
Number of pages10
JournalBiopolymers
Volume25
Issue number2
DOIs
StatePublished - Feb 1986

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Biochemistry
  • Biomaterials
  • Organic Chemistry

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