Nucleic Acids Research, 1979, Vol. 7, No. 6 1393-1403
© 1979
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Structure models for DNA in filamentous viruses with phosphates near the center
Department of Biochemistry, The Public Health Research Institute of The City of New York, Inc. 455 First Avenue, New York, NY 10016, USA
Received October 10, 1979.
DNA structure models deduced from X-ray and physicochemical data for Pf 1, Xf, and fd viruses have two antiparallel chains wound in helices of
15 Å pitch with the phosphates near the structure axes and the bases directed outward. The models, which differ for each virus, are used to Interpret ultra-violet absorbance and fluorescence data in terms of DNA-protein interactions.
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