title: Controlling electron rebound within four-base π-stacks in Z-DNA by changing the sugar moiety from deoxy- to ribonucleotide.
abstract: Charge transfer through DNA is of great interest because of the potential of DNA to be a building block for nanoelectronic sensors and devices. The photochemical reaction of 5-halouracil has been used for probing charge-transfer processes along DNA. We previously reported on unique charge transfer following photochemical reaction of 5-bromouracil within four-base π-stacks in Z-DNA. In this study, we incorporated a guanosine instead of a deoxyguanosine into Z-DNA, and found that electron transfer occurs in a different mechanism through four-base π-stacks.
authors.affiliation: Department of Chemistry, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto-shi, Kyoto, 606-8502 (Japan), Fax: (+81) 75-753-3670.
authors.forename: Yuta
authors.initials: Y
authors.lastname: Sannohe
authors.forename: Seiichiro
authors.initials: S
authors.lastname: Kizaki
authors.forename: Shuhei
authors.initials: S
authors.lastname: Kanesato
authors.forename: Ayaka
authors.initials: A
authors.lastname: Fujiwara
authors.forename: Yue
authors.initials: Y
authors.lastname: Li
authors.forename: Hironobu
authors.initials: H
authors.lastname: Morinaga
authors.forename: Ryu
authors.initials: R
authors.lastname: Tashiro
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Sugiyama
mesh_terms: D001976:Bromouracil / Q000737:chemistry; D002241:Carbohydrates / Q000737:chemistry*; D043542:DNA, Z-Form / Q000737:chemistry*; D003849:Deoxyguanosine / Q000737:chemistry*; D004579:Electron Transport; D004583:Electrons; D011789:Quantum Theory; D012265:Ribonucleotides / Q000737:chemistry*; D014466:Ultraviolet Rays
chemical_list: D002241:Carbohydrates; D043542:DNA, Z-Form; D012265:Ribonucleotides; D001976:Bromouracil; D003849:Deoxyguanosine
keywords: 5-bromouracil; excess electron transfer; four-base π-stacks; z-dna