Differentially labeled mutant oligonucleotides for analysis of protein-DNA interactions.

Journal Article

We have developed a method to produce a set of four duplex oligonucleotides, each with a different labeled base at a given position, from one template-primer combination. The template oligonucleotide is synthesized with a mixture of all four bases at the position of interest, and the primer oligonucleotide hybridizes to the template at all bases 3' from the position of interest. Specifically labeled substrates are then produced by differential incorporation of each of the four labeled nucleotides in four separate reactions. This method is more cost-effective than synthesizing four separate duplex oligonucleotides with different base pairs at the position of interest. We have successfully used this method to test nucleotide substitutions at several positions of a DNA recognition site for the phage T4 type II DNA topoisomerase.

Full Text

Duke Authors

Cited Authors

  • Freudenreich, CH; Kreuzer, KN

Published Date

  • January 1994

Published In

Volume / Issue

  • 16 / 1

Start / End Page

  • 104 - 108

PubMed ID

  • 8136122

Pubmed Central ID

  • 8136122

International Standard Serial Number (ISSN)

  • 0736-6205


  • eng

Conference Location

  • England