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Hydrogen bond - Hydrogen bond in proteins and DNA | | Hydrogen bond - Hydrogen bond in proteins and DNA: Encyclopedia II - Hydrogen bond - Hydrogen bond in proteins and DNA | | Hydrogen bonding also plays an important role in determining the three-dimensional structures adopted by proteins and nucleic acids. In these macromolecules, bonding between parts of the same macromolecule cause it to fold into a specific shape, which helps determine the molecule's physiological or biochemical role. The double helical structure of DNA, for example, is due largely to hydrogen bonding between the base pairs, which ...
See also:Hydrogen bond, Hydrogen bond - Hydrogen bond in water, Hydrogen bond - Hydrogen bond in proteins and DNA, Hydrogen bond - Symmetric hydrogen bond, Hydrogen bond - Dihydrogen bond, Hydrogen bond - Advanced theory of the hydrogen bond | | | Hydrogen bond, Hydrogen bond - Advanced theory of the hydrogen bond, Hydrogen bond - Dihydrogen bond, Hydrogen bond - Hydrogen bond in proteins and DNA, Hydrogen bond - Hydrogen bond in water, Hydrogen bond - Symmetric hydrogen bond | | |
| | | Hydrogen bond: Encyclopedia II - Hydrogen bond - Hydrogen bond in proteins and DNA
Hydrogen bond - Hydrogen bond in proteins and DNA
Hydrogen bonding also plays an important role in determining the three-dimensional structures adopted by proteins and nucleic acids. In these macromolecules, bonding between parts of the same macromolecule cause it to fold into a specific shape, which helps determine the molecule's physiological or biochemical role. The double helical structure of DNA, for example, is due largely to hydrogen bonding between the base pairs, which link one complementary strand to the other and enable replication.
In proteins, hydrogen bonds form between the backbone oxygens and amide hydrogens. When the spacing of the amino acid residues participating in a hydrogen bond occurs regularly between positions i and i + 4, an alpha helix is formed. When the spacing is less, between positions i and i + 3, then a 310 helix is formed. When two strands are joined by hydrogen bonds involving alternating residues on each participating strand, a beta sheet is formed. (See also protein folding).
Other related archivesDNA, Linus Pauling, Liquid, Neutron diffraction, Symmetric hydrogen bonds, alpha helix, amino acid, atom, base pairs, beta sheet, boiling point, bound states, chalcogen, chemistry, covalent, covalent bond, crystallography, dihydrogen bond, dissociation constant, dynamic, dynamical, electric charges, electronegative, electrostatic, fluorine, formic acid, heteroatom, hydrogen, hydronium, hydroxide, interaction energy, intermolecular, intermolecular force, intermolecular forces, intramolecular, ionic bond, ionic bonds, kinetic, lone pair, macromolecules, metal complexes, metric, molecular geometry, molecular mass, molecular thermodynamics, nitrogen, nucleic acids, nucleus, oxygen, partial, physics, pi-bonds, polyatomic ions, protein folding, proteins, proton, quantum, replication, scalar field, standard temperature and pressure, water
 Adapted from the Wikipedia article "Hydrogen bond in proteins and DNA", under the G.N U Free Docmentation License. Please also see http://en.wikipedia.org/wiki |
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