title: 2'-Deoxy-2'(S)-ethinyl oligonucleotides: a modification which selectively stabilizes oligoadenylate pairing to DNA complements.
abstract: Oligonucleotides consisting of 2'-deoxy-2'(S)-ethinyl-thymidine,-uridine, and -adenosine have been prepared. Whereas the modified pyrimidine oligonucleotides uniformly lead to weaker pairing affinity with DNA and RNA complements, the corresponding adenine oligonucleotides show enhanced thermal stability in duplexes with complementary DNA and decreased stability with RNA.
authors.affiliation: Department of Chemistry and Biochemistry, University of Bern, Switzerland.
authors.forename: R
authors.initials: R
authors.lastname: Buff
authors.forename: J
authors.initials: J
authors.lastname: Hunziker
mesh_terms: D000227:Adenine Nucleotides / Q000737:chemistry*; D001483:Base Sequence; D004247:DNA / Q000737:chemistry*; D008969:Molecular Sequence Data; D009841:Oligonucleotides / Q000737:chemistry*; D009843:Oligoribonucleotides / Q000737:chemistry*
chemical_list: D000227:Adenine Nucleotides; D009841:Oligonucleotides; D009843:Oligoribonucleotides; C023505:2',5'-oligoadenylate; D004247:DNA