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TitleVisualization of the externalized VP2 N termini of infectious human parvovirus B19.
Journal, issue, pagesJ Virol, Vol. 82, Issue 15, Page 7306-7312, Year 2008
Publish dateMay 28, 2008
AuthorsBärbel Kaufmann / Paul R Chipman / Victor A Kostyuchenko / Susanne Modrow / Michael G Rossmann /
PubMed AbstractThe structures of infectious human parvovirus B19 and empty wild-type particles were determined by cryoelectron microscopy (cryoEM) to 7.5-A and 11.3-A resolution, respectively, assuming icosahedral ...The structures of infectious human parvovirus B19 and empty wild-type particles were determined by cryoelectron microscopy (cryoEM) to 7.5-A and 11.3-A resolution, respectively, assuming icosahedral symmetry. Both of these, DNA filled and empty, wild-type particles contain a few copies of the minor capsid protein VP1. Comparison of wild-type B19 with the crystal structure and cryoEM reconstruction of recombinant B19 particles consisting of only the major capsid protein VP2 showed structural differences in the vicinity of the icosahedral fivefold axes. Although the unique N-terminal region of VP1 could not be visualized in the icosahedrally averaged maps, the N terminus of VP2 was shown to be exposed on the viral surface adjacent to the fivefold beta-cylinder. The conserved glycine-rich region is positioned between two neighboring, fivefold-symmetrically related VP subunits and not in the fivefold channel as observed for other parvoviruses.
External linksJ Virol / PubMed:18508892 / PubMed Central
MethodsEM (single particle)
Resolution7.5 - 11.3 Å
Structure data

EMDB-1466:
Human Parvovirus B19 (DNA-containing wildtype)
Method: EM (single particle) / Resolution: 7.5 Å

EMDB-1467:
Human Parvovirus B19 (empty wildtype particle)
Method: EM (single particle) / Resolution: 11.3 Å

EMDB-1468:
Virus-like particle of Human Parvovirus B19 (VLP consisting of VP2 only)
Method: EM (single particle) / Resolution: 7.7 Å

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