Covalent coupling of DNA oligonucleotides and streptavidin.
Semisynthetic DNA-protein conjugates are synthesized by covalent coupling of thiol-modified DNA oligonucleotides and streptavidin. The resulting conjugates have a binding capacity for four equivalents of biotin and one nucleic acid of complementary sequence. The conjugates are purified to homogeneity by ultrafiltration and chromatography and characterized by photometry and gel electrophoresis. Subsequently, the conjugates are applied as molecular linkers in the DNA-directed immobilization of a biotinylated enzyme on a microplate, containing complementary capture oligonucleotides.
Kukolka
Florian
F
Biologisch-Chemische Mikrostrukturtechnik, Fachbereich Chemie der Universität Dortmund, Germany.
Lovrinovic
Marina
M
Wacker
Ron
R
Niemeyer
Christof M
CM
D003432:Cross-Linking Reagents; D009838:Oligodeoxyribonucleotides; D020411:Oligonucleotide Array Sequence Analysis / Q000379:methods; D040081:Protein Array Analysis / Q000379:methods; D019809:Streptavidin
D003432:Cross-Linking Reagents; D009838:Oligodeoxyribonucleotides; D019809:Streptavidin