[show abstract][hide abstract] ABSTRACT: The structure of recombinant domain III of the envelope protein (rED3) of yellow fever virus (YFV), containing the major neutralization site, was determined using NMR spectroscopy. The amino acid sequence and structure of the YFV-rED3 shows differences from ED3s of other mosquito-borne flaviviruses; in particular, the partially surface-exposed BC loop where methionine-304 and valine-324 were identified as being critical for the structure of the loop. Variations in the structure and surface chemistry of ED3 between flaviviruses affect neutralization sites and may affect host cell receptor interactions and play a role in the observed variations in viral pathogenesis and tissue tropism.
[show abstract][hide abstract] ABSTRACT: Nearly complete backbone and side chain resonance assignments have been obtained for the third domain, residues M289-K400, of the envelope protein from the sylvatic strain (P72-1244) of the dengue 1 virus, containing mutations N336S and E370K, using double- and triple-resonance spectroscopy.
[show abstract][hide abstract] ABSTRACT: Nearly complete backbone and sidechain resonance assignments have been obtained for the third domain, residues S288-K398, of the envelope protein from the Asibi strain of yellow fever virus using double- and triple-resonance spectroscopy.