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Helical structures: The geometry of protein helices and nanotubes

Lord, Eric A (2002) Helical structures: The geometry of protein helices and nanotubes. In: Structural Chemistry, 13 (3-4). pp. 305-314.

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In nature, helical structures arise when identical structural subunits combine sequentially, the orientational and translational relation between each unit and its predecessor remaining constant. A helical structure is thus generated by the repeated action of a screw transformation acting on a subunit. A plane hexagonal lattice wrapped round a cylinder provides a useful starting point for describing the helical conformations of protein molecules, for investigating the geometrical properties of carbon nanotubes, and for certain types of dense packings of equal spheres.

Item Type: Journal Article
Publication: Structural Chemistry
Publisher: Springer
Additional Information: Copyright of this article belongs to Springer.
Keywords: Helices;hexagonal lattice;nanotubes;polyhedra.
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 19 Jul 2011 04:50
Last Modified: 19 Jul 2011 04:50
URI: http://eprints.iisc.ac.in/id/eprint/39228

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