Pyrimidine-specific chemical reactions useful for DNA sequencing

Authors:
  • CRCarol M. Rubin
    Carol M. Rubin
  • CSCarl W. Schmid
    Carl W. Schmid

Abstract
Potassium permanganate reacts selectively with thymidine residues in DNA (1) while hydroxylamine hydrochloride at pH 6 specifically attacks cytosine (2). We have adopted these reactions for use with the chemical sequencing method developed by Maxam and Gilbert (3).