%0 Journal Article %T Density-wave Theory of the Capsid Structure of Small Icosahedral Viruses %+ Laboratoire de Physique Théorique et Astroparticules (LPTA) %A Lorman, V.L. %A Rochal, S.B. %< avec comité de lecture %Z LPTA/07-07 %@ 0031-9007 %J Physical Review Letters %I American Physical Society %V 98 %P 185502 %8 2007 %D 2007 %Z cond-mat/0611623 %R 10.1103/PhysRevLett.98.185502 %K Theory of crystal structure %K crystal symmetry %K calculations and modeling Solid–liquid transitions Self-assembly in nanofabrication and processing Properties of biomolecular solutions %K aggregation and crystallization of macromolecules %Z 61.50.Ah, 64.70.Dv, 81.16.Dn, 87.15.Nn %Z Physics [physics]/Condensed Matter [cond-mat]/Soft Condensed Matter [cond-mat.soft]Journal articles %X We apply Landau theory of crystallization to explain and to classify the capsid structures of small viruses with spherical topology and icosahedral symmetry. We develop an explicit method which predicts the positions of centers of mass for the proteins constituting viral capsid shell. Corresponding density distribution function which generates the positions has universal form without any fitting parameter. The theory describes in a uniform way both the structures satisfying the well-known Caspar and Klug geometrical model for capsid construction and those violating it. The quasiequivalence of protein environments in viral capsid and peculiarities of the assembly thermodynamics are also discussed. %G English %L in2p3-00148956 %U https://hal.in2p3.fr/in2p3-00148956 %~ IN2P3 %~ LPTA %~ CNRS %~ UNIV-MONTP2 %~ UNIV-MONTPELLIER %~ UM1-UM2