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Results from molecular dynamics simulations of simple, structured particles capable of self-assembling into polyhedral shells are described. The analysis focuses on the growth histories of individual shells in the presence of an explicit…

软凝聚态物质 · 物理学 2010-03-01 D. C. Rapaport

A series of simulations aimed at elucidating the self-assembly dynamics of spherical virus capsids is described. This little-understood phenomenon is a fascinating example of the complex processes that occur in the simplest of organisms.…

软凝聚态物质 · 物理学 2015-05-19 D. C. Rapaport

The use of reduced models for investigating the self-assembly dynamics underlying protein shell formation in spherical viruses is described. The spontaneous self-assembly of these polyhedral, supramolecular structures, in which icosahedral…

软凝聚态物质 · 物理学 2009-11-10 D. C. Rapaport

We use computer simulations to study a model, first proposed by Wales [1], for the reversible and monodisperse self-assembly of simple icosahedral virus capsid structures. The success and efficiency of assembly as a function of…

生物大分子 · 定量生物学 2010-02-24 Iain G. Johnston , Ard A. Louis , Jonathan P. K. Doye

The self-assembly of polyhedral shells, each constructed from 60 trapezoidal particles, is simulated using molecular dynamics. The spatial organization of the component particles in this shell is similar to the capsomer proteins forming the…

软凝聚态物质 · 物理学 2012-12-05 D. C. Rapaport

We consider self-assembly of proteins into a virus capsid by the methods of molecular dynamics. The capsid corresponds either to SPMV or CCMV and is studied with and without the RNA molecule inside. The proteins are flexible and described…

生物大分子 · 定量生物学 2018-11-05 Karol Wolek , Marek Cieplak

We model the spontaneous assembly of a capsid (a virus's closed outer shell) from many copies of identical units, using entirely irreversible steps and only information local to the growing edge. Our model is formulated in terms of (i) an…

生物大分子 · 定量生物学 2009-11-11 Stephen D. Hicks , C. L. Henley

I present a review of the theoretical and computational methodologies that have been used to model the assembly of viral capsids. I discuss the capabilities and limitations of approaches ranging from equilibrium continuum theories to…

生物大分子 · 定量生物学 2013-01-09 Michael F. Hagan

The formation of a viral capsid -- the highly-ordered protein shell that surrounds the genome of a virus -- is the canonical example of self-assembly. The capsids of many positive-sense RNA viruses spontaneously assemble from in vitro…

软凝聚态物质 · 物理学 2022-06-08 Rees F. Garmann , Aaron M. Goldfain , Vinothan N. Manoharan

The protein shells, or capsids, of all sphere-like viruses adopt icosahedral symmetry. In the present paper we propose a statistical thermodynamic model for viral self-assembly. We find that icosahedral symmetry is not expected for viral…

软凝聚态物质 · 物理学 2009-11-07 Robijn F. Bruinsma , William M. Gelbart , David Reguera , Joseph Rudnick , Roya Zandi

Viruses are nanoscale entities containing a nucleic acid genome encased in a protein shell called a capsid, and in some cases surrounded by a lipid bilayer membrane. This review summarizes the physics that govern the processes by which…

生物大分子 · 定量生物学 2015-05-20 Jason D Perlmutter , Michael F Hagan

We study the self-assembly behaviour of patchy particles with `protein-like' interactions that can be considered as a minimal model for the assembly of viral capsids and other shell-like protein complexes. We thoroughly explore the…

软凝聚态物质 · 物理学 2010-01-21 Alex W. Wilber , Jonathan P. K. Doye , Ard A. Louis , Anna C. F. Lewis

The packaging of genetic material within a protein shell, called the capsid, marks a pivotal step in the life cycle of numerous single-stranded RNA viruses. Understanding how hundreds, or even thousands, of proteins assemble around the…

生物物理 · 物理学 2024-09-04 Siyu Li , Guillaume Tresset , Roya Zandi

Capsids of many viruses assemble around nucleic acids or other polymers. Understanding how the properties of the packaged polymer affect the assembly process could promote biomedical efforts to prevent viral assembly or nanomaterials…

生物大分子 · 定量生物学 2015-05-18 Aleksandr Kivenson , Michael F. Hagan

For many viruses assembly and budding occur simultaneously during virion formation. Understanding the mechanisms underlying this process could promote biomedical efforts to block viral propagation and enable use of capsids in nanomaterials…

亚细胞过程 · 定量生物学 2014-03-11 Teresa Ruiz-Herrero , Michael F. Hagan

We develop coarse-grained models that describe the dynamic encapsidation of functionalized nanoparticles by viral capsid proteins. We find that some forms of cooperative interactions between protein subunits and nanoparticles can…

生物大分子 · 定量生物学 2009-11-13 Michael F. Hagan

Many viruses rely on the self-assembly of their capsids to protect and transport their genomic material. For many viral systems, in particular for human viruses like hepatitis B, adeno or human immunodeficiency virus, that lead to…

亚细胞过程 · 定量生物学 2015-02-03 Marvin A. Boettcher , Heinrich C. R. Klein , Ulrich S. Schwarz

We develop a class of models with which we simulate the assembly of particles into T1 capsid-like objects using Newtonian dynamics. By simulating assembly for many different values of system parameters, we vary the forces that drive…

生物大分子 · 定量生物学 2009-11-11 Michael F. Hagan , David Chandler

Understanding protein self-assembly is important for many biological and industrial processes. Proteins can self-assemble into crystals, filaments, gels, and other amorphous aggregates. The final forms include virus capsids and condensed…

软凝聚态物质 · 物理学 2016-04-15 Jennifer J. McManus , Patrick Charbonneau , Emanuela Zaccarelli , Neer Asherie

Cyanobacteria sequester photosynthetic enzymes into microcompartments which facilitate the conversion of carbon dioxide into sugars. Geometric similarities between these structures and self-assembling viral capsids have inspired models that…

软凝聚态物质 · 物理学 2018-07-10 Grant M. Rotskoff , Phillip L. Geissler
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