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相关论文: Self-assembly of polyhedral shells: A molecular dy…

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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

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

Self-assembly at submicroscopic scales is an important but little understood phenomenon. A prominent example is virus capsid growth, whose underlying behavior can be modeled using simple particles that assemble into polyhedral shells.…

软凝聚态物质 · 物理学 2008-10-28 D. C. Rapaport

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

We introduce a simple "patchy particle" model to study the thermodynamics and dynamics of self-assembly of homomeric protein complexes. Our calculations allow us to rationalize recent results for dihedral complexes. Namely, why evolution of…

The formation of quasi-spherical cages from protein building blocks is a remarkable self-assembly process in many natural systems, where a small number of elementary building blocks are assembled to build a highly symmetric icosahedral…

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

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

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

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

Studying physical mechanisms and common geometric principles underlying known spherical packings is crucial for rational design of synthetic nanocontainers. Here we model the growth of small spherical shells containing n<72 identical…

软凝聚态物质 · 物理学 2026-03-16 Ivan Yu. Golushko , Olga V. Konevtsova , Daria S. Roshal , Sergei B. Rochal

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

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

During the lifecycle of a virus, viral proteins and other components self-assemble to form a symmetric protein shell called a capsid. This assembly process is subject to multiple competing constraints, including the need to form a…

亚细胞过程 · 定量生物学 2016-04-28 Guillermo R. Lazaro , Michael F. Hagan

We investigate the evolutionary dynamics of an idealised model for the robust self-assembly of two-dimensional structures called polyominoes. The model includes rules that encode interactions between sets of square tiles that drive the…

种群与进化 · 定量生物学 2013-09-03 Iain G. Johnston , Sebastian A. Ahnert , Jonathan P. K. Doye , Ard A. Louis

Experiments have reached a monumental capacity for designing and synthesizing microscopic particles for self-assembly, making it possible to precisely control particle concentrations, shapes, and interactions. However, more physical insight…

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

Motivated by recent experimental findings in chemical synthesis of colloidal particles, we draw an analogy between self-assembly processes occurring in biological systems (e.g. protein folding) and a new exciting possibility in the field of…

软凝聚态物质 · 物理学 2018-02-14 Achille Giacometti

Assembly of protein complexes like virus shells, the centriole, the nuclear pore complex or the actin cytoskeleton is strongly determined by their spatial structure. Moreover it is becoming increasingly clear that the reversible nature of…

亚细胞过程 · 定量生物学 2014-05-13 Heinrich C. R. Klein , Ulrich S. Schwarz

Bacterial microcompartments are large, roughly icosahedral shells that assemble around enzymes and reactants involved in certain metabolic pathways in bacteria. Motivated by microcompartment assembly, we use coarse-grained computational and…

生物物理 · 物理学 2019-05-07 Farzaneh Mohajerani , Michael F. Hagan
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