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Volumn 130, Issue 45, 2008, Pages 15150-15156

Back-electron transfer suppresses the periodic length dependence of DNA-mediated charge transport across adenine tracts

Author keywords

[No Author keywords available]

Indexed keywords

DNA; ELECTRIC INSTRUMENT TRANSFORMERS; ELECTRON TRANSITIONS; GENES; KETONES; ORGANIC ACIDS; RHODIUM;

EID: 57349120649     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja8052738     Document Type: Article
Times cited : (29)

References (78)
  • 1
    • 1042272138 scopus 로고    scopus 로고
    • Schuster, G. B, Ed, Springer: New York, Vols, and 237
    • (a) Schuster, G. B., Ed. Long-Range Charge Transfer in DNA, 1 and 11; Springer: New York, 2004; Vols. 236 and 237.
    • (2004) Long-Range Charge Transfer in DNA, 1 and 11 , vol.236
  • 2
    • 31444455384 scopus 로고    scopus 로고
    • Wagenknecht, H. A, Ed, Wiley-VCH: Weinheim, Germany
    • (b) Wagenknecht, H. A., Ed. Charge Transfer in DNA; Wiley-VCH: Weinheim, Germany, 2005.
    • (2005) Charge Transfer in DNA
  • 49
    • 0030887551 scopus 로고    scopus 로고
    • ( 18) (a) Stemp, E. D. A.; Arkin, M.; Barton, J. K. J. Am. Chem. Soc. 1997, 119, 2921-2925.
    • ( 18) (a) Stemp, E. D. A.; Arkin, M.; Barton, J. K. J. Am. Chem. Soc. 1997, 119, 2921-2925.
  • 56
    • 57349164202 scopus 로고    scopus 로고
    • The rate of ring opening for CPG has not been measured directly, although indirect results from experiments in DNA suggest a rate of > 109 s-1. BET from guanine cation radical to thionine anion radical bound non-covalently to DNA has been measured as sub-picosecond,23 although photolysis of thionine bound to DNA yields no detectable base-labile guanine damage despite clear evidence by transient absorption spectroscopy that photooxidation occurs.13 In contrast, CPG is facilely decomposed by DNA-tethered thionine, indicating that the CPG ring-opening rate is at least nanosecond. Similar results are obtained with Ap photooxidation, where forward transport to guanine is 200 ps over a three adenine tract,24 and no damage is observed to guanine due to facile BET, but CPG ring opening is nonetheless observed. 13 Thus CPG ring opening appears to be much faster than charge
    • CPG has not yet been examined.
  • 70
    • 57349192610 scopus 로고    scopus 로고
    • 32
    • 32


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.