title: Oligonucleotides incorporating 7-(aminoalkyn-1-yl)-7-deaza-2'-deoxyguanosines: duplex stability and phosphodiester hydrolysis by exonucleases.
abstract: Self-complementary [[5'-d(G-C)4]2] and non-selfcomplementary oligonucleotides [5'-d(TAG GTC AAT ACT) x 3'-d(ATC CAG TTA TGA)] containing 7-(omega-aminoalkyn-1-yl)-7-deaza-2'-deoxyguanosines (1a-c) (1) and 7-deaza-2'-deoxyguanosine instead of dG were studied regarding their thermal stability as well as their phosphodiester hydrolysis by either 3' --> 5'- or 5' --> 3'-phosphodiesterase studied by MALDI-TOF MS.
authors.affiliation: Laboratorium für Organische und Bioorganische Chemie, Institut für Chemie, Fachbereich Biologie/Chemie, Universität Osnabrück, Osnabrück, Germany.
authors.forename: H
authors.initials: H
authors.lastname: Rosemeyer
authors.forename: N
authors.initials: N
authors.lastname: Ramzaeva
authors.forename: E M
authors.initials: EM
authors.lastname: Becker
authors.forename: E
authors.initials: E
authors.lastname: Feiling
authors.forename: F
authors.initials: F
authors.lastname: Seela
mesh_terms: D001483:Base Sequence; D005092:Exonucleases / Q000378:metabolism*; D006151:Guanosine / Q000031:analogs & derivatives* / Q000737:chemistry; D006868:Hydrolysis; D007202:Indicators and Reagents; D009690:Nucleic Acid Conformation; D009838:Oligodeoxyribonucleotides / Q000138:chemical synthesis / Q000737:chemistry*; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization
chemical_list: D007202:Indicators and Reagents; D009838:Oligodeoxyribonucleotides; D006151:Guanosine; D005092:Exonucleases