Formation of the Cross-Linked Base, Diguanylethane, in DNA Treated with N, N’-Bis(2-Chloroethyl)-N-Nitrosourea

William P. Tong, David B. Ludlum

Research output: Contribution to journalArticlepeer-review

65 Scopus citations

Abstract

A cross-linked base, diguanylethane, has been isolated and identified as a product of the reaction of N, N’-bis(2-chloro-ethyl)-N-nitrosourea with DNA. DNA was reacted at 37° with N, N’-bis(2-chloroethyl)-N-nitosourea in neutral aqueous solution, isolated by precipitation with ethanol, washed, and heated briefly at 100° to release a purine fraction. This fraction was separated by high-pressure liquid chromatography and found to contain both chloroethylguanine and 1,2-diguanyl-ethane. Formation of the latter product may be related to the cytotoxicity of N, N’-bis(2-chloroethyl)-N-nitrosourea.

Original languageEnglish (US)
Pages (from-to)380-382
Number of pages3
JournalCancer Research
Volume41
Issue number2
StatePublished - Feb 1 1981

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

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