Single-molecule fluorescence studies reveal long-range electron-transfer dynamics through double-stranded DNA.
Complex dynamics of combined long-range fluorescence resonance energy transfer (FRET) and short-range electron transfer (ET) processes in a single double-stranded DNA (dsDNA) molecule (see figure) reveals that FRET remains almost unaltered in the presence of ET. Present systems also demonstrate the potential for long-range ET studies through the base stack in single dsDNA molecules.
Kumbhakar
Manoj
M
RPC Division, Bhabha Atomic Research Centre, Mumbai 400 085, India. manojk@barc.gov.in
Kiel
Alexander
A
Pal
Haridas
H
Herten
Dirk-Peter
DP
D001483:Base Sequence; D004247:DNA / Q000737:chemistry*; D004579:Electron Transport; D031541:Fluorescence Resonance Energy Transfer; D005456:Fluorescent Dyes / Q000737:chemistry*; D013050:Spectrometry, Fluorescence
D005456:Fluorescent Dyes; D004247:DNA