Base-specific separation of oligodeoxynucleotides by capillary affinity gel electrophoresis.
Capillary affinity gel electrophoresis was applied to sequence-specific and base composition-specific recognition of oligodeoxynucleotides, utilizing the formation of heteroduplexes between a nucleic acid analogue immobilized into the capillary gel and soluble oligodeoxynucleotides with different sequences. Capillary affinity gel electrophoresis using capillaries filled with a conjugated gel of polyacrylamide and a synthetic nucleic acid analogue [poly(9-vinyladenine)] was effective for the selective separation of hexathymidylic acid from a mixture of four homopolymers of A6, C6, G6, and T6 and for the complete resolution of five heteropolymers of hexadeoxynucleotides (TAAAAA, TTAAAA, TTTAAA, TTTTAA, TTTTTA). We also demonstrated that capillary affinity gel electrophoresis was useful for the selective and the sensitive sequence-specific recognition of sequence isomers of DNA (TTTTAA, TTTTAAT, TTTATA, and TTTTAA).
Baba
Y
Y
Department of Medicinal Chemistry, Faculty of Pharmaceutical Sciences, The University of Tokushima, Japan. ymttbaba@ph.tokushima-u.ac.jp
Sawa
T
T
Kishida
A
A
Akashi
M
M
D000345:Affinity Labels; D001482:Base Composition; D001483:Base Sequence; D019075:Electrophoresis, Capillary / Q000379:methods*; D005782:Gels; D009692:Nucleic Acid Heteroduplexes / Q000737:chemistry / Q000302:isolation & purification; D009838:Oligodeoxyribonucleotides / Q000737:chemistry / Q000302:isolation & purification*; D012995:Solubility
D000345:Affinity Labels; D005782:Gels; D009692:Nucleic Acid Heteroduplexes; D009838:Oligodeoxyribonucleotides