Immobilization of DNA via oligonucleotides containing an aldehyde or carboxylic acid group at the 5' terminus

Autor: Eugene L. Brown, Joseph Wooters, Mary Collins, Rachel E. Meyers, Jonathan N. Kremsky, Joseph P. Dougherty
Jazyk: angličtina
Rok vydání: 1987
Předmět:
Popis: A general method for the immobilization of DNA through its 5'-end has been developed. A synthetic oligonucleotide, modified at its 5'-end with an aldehyde or carboxylic acid, was attached to latex microspheres containing hydrazide residues. Using T4 polynucleotide ligase and an oligonucleotide splint, a single stranded 98mer was efficiently joined to the immobilized synthetic fragment. After impregnation of the latex microspheres with the fluorescent dye, Nile Red and attachment of an aldehyde 16mer, 5 X 10(5) bead-DNA conjugates could be detected with a conventional fluorimeter.
Databáze: OpenAIRE