RNA Polymerase Binding Sites of Phage fd Replicative Form DNA (original) (raw)
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- Published: 24 May 1972
Nature New Biology volume 237, pages 108–109 (1972)Cite this article
Abstract
WHEN RNA polymerase binds to DNA templates, a fraction of DNA is protected from nucleolytic digestion. This fraction has been assumed to represent the binding sites of RNA polymerase1–6. There is, however, no direct evidence that the isolated fragments really contain specific sites at which transcription is correctly initiated. An approach to this question is to demonstrate that the specificity of transcription is still retained in the isolated fragments. RNA chains transcribed in vitro on the doubly closed replicative form DNA (RF-I DNA) of bacteriophage fd are predominantly initiated with pppAUG—, pppGUA— and pppGUU—7 Accordingly, the DNA fraction protected by RNA polymerase against the nucleolytic digestion was isolated from the RF-I DNA RNA polymerase complex, and the template activity of the isolated fragments was examined.
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Authors and Affiliations
- Institute for Chemical Research, Kyoto University, Kyoto, Japan
T. OKAMOTO, M. SUGIURA & M. TAKANAMI
Authors
- T. OKAMOTO
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OKAMOTO, T., SUGIURA, M. & TAKANAMI, M. RNA Polymerase Binding Sites of Phage fd Replicative Form DNA.Nature New Biology 237, 108–109 (1972). https://doi.org/10.1038/newbio237108a0
- Received: 11 November 1971
- Revised: 31 December 1971
- Issue Date: 24 May 1972
- DOI: https://doi.org/10.1038/newbio237108a0