Letter to the editor: The polyuridylic acid complex with polyamines: an x-ray fiber diffraction observation. |
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| Authors: | S B Zimmerman |
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| Institution: | Laboratory of Molecular Biology steven National Institute of Arthritis Metabolism and Digestive Diseases National Institutes of Health Bethesda, Md. 20014, U.S.A. |
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| Abstract: | The poly(U)-spermine complex has been studied by X-ray fiber diffraction techniques. The X-ray pattern is generally similar to that of A RNA or of the A form of DNA, suggesting a double-helical structure with strands of opposite polarity. Models with 9 to 11 residues per turn of the helix are considered. |
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