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The structure of a T = 1 icosahedral empty particle from southern bean mosaic virus | | J W Erickson
; A M Silva
; M R Murthy
; I Fita
; M G Rossmann
; | | Date: |
16 Aug 1985 | | Journal: | Science, 229 (4714), 625-9 | | Abstract: | The structure of a T = 1 icosahedral particle (where T is the triangulation number), assembled from southern bean mosaic virus coat protein fragments that lacked the amino-terminal arm, was solved by means of model building procedures with the use of 6-angstrom resolution x-ray diffraction data. The icosahedral five-, three-, and twofold contacts were found to be similar, at this resolution, to the analogous contacts (icosahedral five-, quasi-three-, and quasi-twofolds) found in the parent T = 3 southern bean mosaic virus. However, the icosahedral fivefold contacts of the T = 3 structure are the most conserved in the T = 1 capsid. These results are consistent with a mechanism in which pentameric caps of dimers are the building blocks for the assembly of T = 1 and T = 3 icosahedral viruses. | | Source: | PubMed, pmid4023701 | | Services: | Forum | Review | Favorites | |
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