A structure for deoxyribose nucleic acid.
نویسنده
چکیده
A structure for nucleic acid has already been proposed by Pauling and Corey (1). They kindly made their manuscript available to us in advance of publication. Their model consists of three intertwined chains, with the phosphates near the fibre axis, and the bases on the outside. In our opinion, this structure is unsatisfactory for two reasons: (1) We believe that the material which gives the X-ray diagrams is the salt, not the free acid. Without the acidic hydrogen atoms it is not clear what forces would hold the structure together, especially as the negatively charged phosphates near the axis will repel each other. (2) Some of the van der Waals distances appear to be too small.
منابع مشابه
Structural Biochemistry/Nucleic Acid/DNA/DNA structure
Deoxyribonucleic acid (DNA) stores information for the synthesis of specific proteins. DNA has deoxyribose as its sugar. DNA consists of a phosphate group, a sugar, and a nitrogenous base. The structure of DNA is a helical, double-stranded macromolecule with bases projecting into the interior of the molecule. These two strands are always complementary in sequence. One strand serves as a templat...
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متن کامل[Nucleic acids].
E wish to suggest a structure for the salt of deoxyribose nucleic acid (D.N.A.). This structure has novel features which are of considerable biological interest. A structure for nucleic acid has already been proposed by Pauling and Corey. They kindly made their manuscript available to us in advance of publication. Their model consists of three intertwined chains, with the phosphates near the fi...
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متن کامل
P Nmr and Two-dimensional Nmr Spectra of Nucleic Acids and 2d Noesy-constrained Molecular Mechanics Calculations for Structural Solution of Duplex Oligonucleotides*
Nuclear magnetic resonance spectroscopy is now able to provide detailed 3-dimensional structures and dynamics of oligonucleotide duplexes and nucleic acid complexes (1,2). Unfortunately, of the six torsional angles that largely define the backbone structure, only the four involving the deoxyribose ring have been shown to be directly amenable to analysis by NMR techniques. In fact for modest-siz...
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عنوان ژورنال:
- Journal of the American College of Cardiology
دوره 42 2 شماره
صفحات -
تاریخ انتشار 2003