Bleomycin-treated DNA is specifically cleaved only by endonuclease IV in E. coli

Michael E. Hagensee, Robb Moses

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

We have isolated an endonuclease from E. coli active on bleomycin-treated DNA. Purification on DEAE-cellulose separated this activity in strains lacking endonuclease I, endonuclease III or exonuclease III. After DEAE chromatography, the enzyme was active in the absence of divalent cations and was not inhibited by tRNA or harmane. In addition, this enzyme was stable at 45°C for 20 min. These properties are consistent with this activity being endonuclease IV. This was supported by our finding no activity in a strain lacking endonuclease IV.

Original languageEnglish (US)
Pages (from-to)19-23
Number of pages5
JournalBBA - Gene Structure and Expression
Volume1048
Issue number1
DOIs
StatePublished - Jan 30 1990
Externally publishedYes

Fingerprint

Deoxyribonuclease IV (Phage T4-Induced)
Endonucleases
Bleomycin
Escherichia coli
DEAE-Cellulose
Deoxyribonuclease I
DNA
Divalent Cations
Enzymes
Transfer RNA
Chromatography
Purification
E coli endonuclease IV

Keywords

  • (E. coli)
  • AP endonuclease
  • Bleomycin
  • Endonuclease IV

ASJC Scopus subject areas

  • Biochemistry
  • Biophysics
  • Genetics
  • Structural Biology

Cite this

Bleomycin-treated DNA is specifically cleaved only by endonuclease IV in E. coli. / Hagensee, Michael E.; Moses, Robb.

In: BBA - Gene Structure and Expression, Vol. 1048, No. 1, 30.01.1990, p. 19-23.

Research output: Contribution to journalArticle

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