Local structure of M-DNA at the Nitrogen K-edge: evidence towards a metal ion induced conduction band in DNA.
M-DNA is an engineered duplex DNA that is synthesized from high doping of transition metal ions (Ni2+, Co2+ and Zn2+) into B-DNA at high pH. X-ray Absorption Near Edge Structure (XANES) of the Nitrogen K-edge shows remarkable differences between the doped and undoped DNA. A metal ion induced conduction band in the M-DNA is used to explain the XANES results.
Skinner
R J S
RJ
Department of Biochemistry, University of Saskatchewan, 107 Wiggins Road, Saskatoon, Saskatchewan, S7N 5E5, Canada.
Lee
J S
JS
Hu
Y F
YF
Jiang
D T
DT
Aich
P
P
Wettig
S
S
Maley
J
J
Sammynaiken
R
R
D003460:Crystallization / Q000379:methods; D004247:DNA / Q000032:analysis / Q000737:chemistry* / Q000648:ultrastructure*; D004553:Electric Conductivity; D004563:Electrochemistry / Q000379:methods*; D007477:Ions; D008422:Materials Testing; D008670:Metals / Q000032:analysis / Q000737:chemistry*; D008968:Molecular Conformation; D049329:Nanostructures / Q000032:analysis / Q000737:chemistry* / Q000648:ultrastructure*; D009584:Nitrogen / Q000032:analysis / Q000737:chemistry*; D010316:Particle Size; D012666:Semiconductors
D007477:Ions; D008670:Metals; D004247:DNA; D009584:Nitrogen