T4 DNA topoisomerase: a new ATP-dependent enzyme essential for initiation of T4 bacteriophage DNA replication - PubMed (original) (raw)

. 1979 Oct 11;281(5731):456-61.

doi: 10.1038/281456a0.

• PMID: 226889
• DOI: 10.1038/281456a0

T4 DNA topoisomerase: a new ATP-dependent enzyme essential for initiation of T4 bacteriophage DNA replication

L F Liu et al. Nature. 1979.

Abstract

A novel ATP-dependent DNA topoisomerase which makes reversible double-strand breaks in the DNA double helix has been purified to near homogeneity from T4 bacteriophage-infected Escherichia coli cells. Genetic data suggest that this activity is essential for initiating T4 DNA replication forks in vivo.

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