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  • Title: Yellow fever virus envelope protein has two discrete type-specific neutralizing epitopes.
    Author: Ryman KD, Ledger TN, Weir RC, Schlesinger JJ, Barrett AD.
    Journal: J Gen Virol; 1997 Jun; 78 ( Pt 6)():1353-6. PubMed ID: 9191929.
    Abstract:
    Two monoclonal antibody neutralization resistant (MAbR) variants of the yellow fever (YF) 17D-204 vaccine virus strain were selected using YF type-specific MAb B39. These B39R variants were compared with the variant virus selected by Lobigs et al. (Virology 161, 474-478, 1987) using a second YF-type specific MAb (2E10) which mapped to amino acid position 71/72 in the envelope (E) protein. Neutralization assays with a panel of MAbs suggested that these two YF-type-specific epitopes are located in two discrete regions of the folded E protein. Each of the B39R variants had a single nucleotide mutation which encoded an amino acid substitution at either position E-155 or E-158. Thus, YF type-specific epitopes map to both domain I (B39) and II (2E10) of the YF virus E protein. The B39 defined epitope represents the first flavivirus neutralizing epitope localized to this region of domain I of the E protein.
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