A common structure for the potexviruses.

Kendall A, Bian W, Maris A, Azzo C, Groom J, Williams D, Shi J, Stewart PL, Wall JS, Stubbs G
Virology. 2013 436 (1): 173-8

PMID: 23245732 · DOI:10.1016/j.virol.2012.11.008

We have used fiber diffraction, cryo-electron microscopy, and scanning transmission electron microscopy to confirm the symmetry of three potexviruses, potato virus X, papaya mosaic virus, and narcissus mosaic virus, and to determine their low-resolution structures. All three viruses have slightly less than nine subunits per turn of the viral helix. Our data strongly support the view that all potexviruses have approximately the same symmetry. The structures are dominated by a large domain at high radius in the virion, with a smaller domain, which includes the putative RNA-binding site, extending to low radius.

Copyright © 2012 Elsevier Inc. All rights reserved.

MeSH Terms (10)

Amino Acid Sequence Binding Sites Capsid Capsid Proteins Cryoelectron Microscopy Microscopy, Electron, Scanning Transmission Potexvirus Protein Structure, Secondary RNA, Viral X-Ray Diffraction

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