Studies on in vitro DNA synthesis. Isolation of DNA B gene product from Escherichia coli
- PMID: 4274130
- PMCID: PMC427183
- DOI: 10.1073/pnas.70.11.3120
Studies on in vitro DNA synthesis. Isolation of DNA B gene product from Escherichia coli
Abstract
Formation of duplex DNA from varphiX174 single-stranded DNA by extracts of E. coli was previously shown to require the gene product of dna B. Using as an assay the stimulation of varphiX174 DNA-dependent synthesis in inactivated extracts of dna B temperature-sensitive cells, we purified the dna B gene product from wild-type E. coli as well as from a dna B temperature-sensitive mutant. The dna B temperature-sensitive gene product is more thermolabile than its wild-type counterpart.
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