title: Specific base recognition of oligodeoxynucleotides by capillary affinity gel electrophoresis using polyacrylamide-poly(9-vinyladenine) conjugated gel.
abstract: Poly(9-vinyladenine) was synthesized and utilized as an affinity macroligand entrapped within the gel matrix. Base-specific separation of oligodeoxynucleotides was achieved with high resolution and high speed by electrophoresis, using capillaries filled with conjugated polyacrylamide-poly(9-vinyladenine) gel. Oligothymidylic acids were selectively separated from the mixture of oligothymidylic and oligodeoxyadenylic acids by utilizing a specific hydrogen bonding between poly(9-vinyladenine) and oligothymidylic acids. Migration time and resolution of oligodeoxynucleotides were influenced by several parameters, such as the size of poly(9-vinyladenine), capillary temperature, and concentrations of poly(9-vinyladenine) and urea. Some guidelines are presented, based on the theoretical formulation of the effect of these parameters, in order to find optimum electrophoretic conditions. Analytical capillary affinity gel electrophoresis was developed for the selective and sensitive base recognition of oligodeoxynucleotides with efficiencies as high as several 10(6) plates/m by using a urea-gel capillary with poly(9-vinyladenine) and temperature-programming.
authors.affiliation: Kobe Women's College of Pharmacy, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Baba
authors.forename: M
authors.initials: M
authors.lastname: Tsuhako
authors.forename: T
authors.initials: T
authors.lastname: Sawa
authors.forename: M
authors.initials: M
authors.lastname: Akashi
authors.forename: E
authors.initials: E
authors.lastname: Yashima
mesh_terms: D000225:Adenine / Q000031:analogs & derivatives* / Q000737:chemistry; D004591:Electrophoresis, Polyacrylamide Gel; D006860:Hydrogen Bonding; D008970:Molecular Weight; D009838:Oligodeoxyribonucleotides / Q000032:analysis / Q000302:isolation & purification*; D011145:Polyvinyls / Q000737:chemistry*; D013938:Thymidine Monophosphate / Q000032:analysis / Q000302:isolation & purification*
chemical_list: D009838:Oligodeoxyribonucleotides; D011145:Polyvinyls; C012002:poly(9-vinyladenine); D013938:Thymidine Monophosphate; D000225:Adenine