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A proposed structure for the nucleic acids
A proposed structure for the nucleic acids
TitleA proposed structure for the nucleic acids
CreatorPauling, Linus, 1901-
ContributorCorey, Robert
PublisherNational Academy of Sciences.
Date1953-02-00
Description/NoteProceedings of the National Academy of Sciences Vol. 39, No. 2, pp. 84-97. February, 1953.
Full Textwould be attached to one of the two inner oxygen atoms, and presumably would be involved in hydrogen-bond formation with another of the inner oxygen atoms, of an adjoining phosphate group.­he length of the O—H ... O bond should be close to that observed in potassium dihydrogen phosphate, 2.55 Å.­he angle P—0—H should be approximately the tetrahedral angle.¢t is found that the spacing 3.4 Å is not compatible with this bond angle, if the hydrogen bonds are formed between one phosphate group and a group in the layer above or below it. [Caption: FIGURE 4 Perspective drawing of a portion of the nucleic acid structure, showing the phosphate tetrahedra near the axis of the molecule, the β-D-ribofuranose rings connecting the tetrahedra into chains, and the attached purine and pyrimidine rings (represented as purine rings in this drawing}. The molecule is inverted with respect to the coordinates given in table 1.]šccordingly we assume that hydrogen bonds are formed between the oxygen atoms of the phosphate groups in the same basal plane, along outer edges of the octahedron in figure 1. The maximum distance between the oxygen atoms 3' and 5' of a ribofuranose or deoxyribofuranose residue permitted by the accepted structural parameters (C—C = 1.54 Å, C—O = 2.43 Å, bond angles tetrahedral, with the minimum distortion required by the five-membered ring, one atom of
SubjectNucleic acids -- Structure
Object TypeText;
Material Formattext/plain;
Transmission DataMaster scanned with Epson GT-10000+ flatbed scanner at 600 dpi.
Collection SeriesPublished Papers
Copyrighthttp://osulibrary.orst.edu/specialcollections/coll/pauling/dna/copyright.html
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