| Literature DB >> 21903404 |
Jonathan T Sczepanski1, Christine N Hiemstra, Marc M Greenberg.
Abstract
The C4'-oxidized abasic site (C4-AP) forms two types of interstrand cross-links with the adjacent nucleotides in DNA. Previous experiments revealed that dG does not react with the lesion and that formation of one type of cross-link is catalyzed by the opposing dA. iso-Guanosine·dC and 2-aminopurine·dT base pairs were used to determine why dG does not cross-link with C4-AP despite its well known reactivity with other bis-electrophiles. 7-Deaza-2'-deoxyadenosine was used to probe the role of the nucleotide opposite C4-AP in the catalysis of interstrand cross-link formation.Entities:
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Year: 2011 PMID: 21903404 PMCID: PMC3177026 DOI: 10.1016/j.bmc.2011.08.024
Source DB: PubMed Journal: Bioorg Med Chem ISSN: 0968-0896 Impact factor: 3.641