词汇 | icosahedral |
释义 | BETA Examples of icosahedralicosahedral isn’t in the Cambridge Dictionary yet. You can help! Formation of the icosahedral capsid is thought to occur on these membranes. The outer capsid has an ordered structure with icosahedral symmetry. Scaffolding proteins bind to capsid shell proteins inducing co-polymerization into an icosahedral protein shell. Diversity and identity of mechanical properties of icosahedral viral capsids studied with elastic network normal mode analysis. This weakness of pentamers in the icosahedral capsid is predicted to result in a buckling instability, where the main curvature of the shell has been inverted at the pentamers. Virions are spherical in appearance but have icosahedral symmetry. The quality criteria available can then be used to find the best centred class average in which the icosahedral symmetry is preserved best. Starting an icosahedral reconstruction based on a number of good class averages is thus very simple. Soft modes near the buckling transition of icosahedral shells. The genome is encased in an icosahedral protein shell along with viral enzymes (protease, reverse transcriptase and integrase) and a matrix protein. Adding the third dimension to virus life cycles : threedimensional reconstruction of icosahedral viruses from cryo-electron micrographs. This success includes the study of icosahedral structures. This factor equals unity for an asymmetric particle / and equals 60 for an icosahedral virus. Icosahedral particles are simply particles with the highest possibly pointgroup symmetry (pointgroup : ' 532 '). Icosahedral particles can thus be seen as the ' micro-crystal ' extreme of single particle methodologies. For an icosahedral particle, however, the ' triangle ' actually has the shape of a triangle and covers 1\\60th of the surface of the unit sphere. A method for modeling icosahedral virions - rotational symmetry boundary-conditions. An approach that has been applied to select barely visible icosahedral viruses from closeto-focus images is to take a second high-defocus image after taking one close-to-focus. |
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