| Literature DB >> 10698456 |
F Seela1, C Wei, G Becher, M Zulauf, P Leonard.
Abstract
The stability of the parallel-stranded (ps) DNA duplexes is increased when the dA-residues are replaced by the 7-substituted 7-deaza-2'-deoxyadenosine derivatives 3a,b or the dG-residues by the 8-aza-7-deazapurine 2'-deoxynucleosides 6 and 7a,b. Also the N-7-glycosylated adenine 5 forms stable base pairs in ps-DNA while it destabilizes oligonucleotide duplexes with antiparallel chain orientation. The presence of a 2-amino group as in compound 4b is critical for the DNA-structure, leading to a much greater destabilization of the ps-hybrids than of aps-DNA.Entities:
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Year: 2000 PMID： 10698456 DOI： 10.1016/s0960-894x(99)00679-4
Source DB: PubMed Journal: Bioorg Med Chem Lett ISSN： 0960-894X Impact factor: 2.823