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Volumn 122, Issue 26, 2000, Pages 6313-6314

Mechanism of DNA strand scission induced by (1,10- phenanthroline)copper complex: Major direct DNA cleavage is not through 1',2'-dehydronucleotide intermediate nor β-elimination of forming ribonolactone [14]

Author keywords

[No Author keywords available]

Indexed keywords

COPPER COMPLEX; LACTONE DERIVATIVE; NUCLEOTIDE DERIVATIVE; PHENANTHROLINE DERIVATIVE;

EID: 0034608974     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja9919130     Document Type: Letter
Times cited : (60)

References (37)
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    • note
    • 2 in 50 mM Tris HCl (pH 7.5) showed typical B-form conformation under reaction conditions (Figure IS).
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    • note
    • Structures of 1, 2, and 3 were characterized by ion spray MS and heat treatment. ESMS (negative): 1, calcd 1673.1, found 1673.0; 2, calcd 1697.1, found 1696.8 (Figure 2S): 3, calcd 1657.1, found 1656.8 (Figure 6S(a)). Heat treatment of 1, 2, and 3 provided corresponding fragments with phosphate termini and 5-methylenefuranone.
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    • 0343785396 scopus 로고    scopus 로고
    • note
    • Structures of 1a and 2a were characterized by ESMS and heat treatment. ESMS (negative): 1a, calcd 1036.7, found 1036.6; 2a, calcd 1349.9, found 1349.8. Heat treatment (90 °C, 30 min) of 1a and 2a provided d(CGT)p and d(CGTA)p, respectively, together with 5-methylenefuranone.
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    • 0343349609 scopus 로고    scopus 로고
    • note
    • 2Cu and MPA were 4.2 and 6.2 h, respectively.
  • 27
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    • note
    • Structures of 4 and 5 were characterized by ESMS as well as by comparison with authentic materials after dephosphorylation with alkaline phosphatase. ESMS (negative): 4, calcd 940.6, found 940.4; 5, calcd 1253.8, found 1253.4 (Figure 6S).
  • 30
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    • note
    • 13 respectively. Snake venom phosphodiesterase and alkaline phosphatase treatment gave dC-, dG-, dT-, and dA-phosphoroglycolate in a ratio of 1:1:1:1. Hydrazine treatment and successive enzymatic digestion gave dC-, dG-, dT-, and dA-pyridazine in a ratio of 1:2:1:1.
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    • Murugesan, N.; Xu, C.; Ehrenfeld, G. M.; Sugiyama, H.; Kilkuskie, R. E.; Rodriguez, L. O.; Chang, L.-H.; Hecht, S. M. Biochemistry 1985, 24, 5735. (a) Sugiyama, H.; Xu, C.; Murugesan, N.; Hecht, S. M.; van der Martel, G.; van Boom, J. H. Biochemistry 1988, 27, 58. (b) Sugiyama, H.; Kawabata, H.; Fujiwara, T.; Dannoue, Y.; Saito. I. J. Am. Chem. Soc. 1990, 112, 5252.
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    • Sigman's group previously pointed out that C4′ oxidation is also operating, but they assumed this contribution for direct DNA strand scission is not so large. Kuwabara, M.; Yoon, C.; Goyne, T.; Theerahn, T.; Sigman, D. S. Biochemistry 1986, 25, 7401.
    • (1986) Biochemistry , vol.25 , pp. 7401
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    • note
    • 13a The contributions of A-, G-, C-, and T-phosphoroglycolate are 1.1%, 0.6%, 1.0%, and 1.0%, respectively.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.