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J Mol Biol. 1992 Jul 5;226(1):277-80.

Crystallization of Sindbis virus and its nucleocapsid.

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Howard Hughes Medical Institute, Harvard University, Cambridge, MA 02138-2092.


Crystals of Sindbis virus, which contains a lipid-bilayer membrane, have been grown using polyethylene glycol. The space group is R32, a = b = 640 A, c = 1520 A. The crystals are highly mosaic, and recorded diffraction is therefore restricted to spacings of about 30 A. The crystals show that the packing of glycoproteins E1 and E2 in the icosahedral outer shell is sufficiently precise that it permits regular and repeated interactions between virus particles in the lattice. Crystals of Sindbis nucleocapsids have also been grown. The limited diffraction data are consistent with close packing of nucleocapsids 404 A in diameter.

[Indexed for MEDLINE]

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