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. 1990 Dec;179(2):701-11.
doi: 10.1016/0042-6822(90)90137-g.

Synthetic peptides of Venezuelan equine encephalomyelitis virus E2 glycoprotein. I. Immunogenic analysis and identification of a protective peptide

A R Hunt  1 , A J Johnson, J T Roehrig
Affiliations

Synthetic peptides of Venezuelan equine encephalomyelitis virus E2 glycoprotein. I. Immunogenic analysis and identification of a protective peptide

A R Hunt et al. Virology. 1990 Dec.

Abstract

Fourteen peptides representing 67% of the extramembranal domain of the Venezuelan equine encephalomyelititis (VEE) virus E2 glycoprotein were synthesized and analyzed to determine their antigenic, immunogenic, and protective capacities. Thirteen of 14 peptides elicited antibody for the homologous peptide. Thirteen peptides elicited antiviral antibody that recognized either the Trinidad (TRD) strain of VEE virus or the TC-83 vaccine derivative, or both. Two peptides, VE2pep01(TC-83) and VE2pep01(TRD), protected significant numbers of mice from TRD virus challenge. The majority of the peptides were reactive with antisera from mice immunized with the various subtypes of VEE virus. A competition assay using antipeptide antibodies to block virus binding of anti-VEE virus monoclonal antibodies corroborated previous studies on the spatial relationship of E2 epitopes and provided evidence for a spatial overlap of the E2 amino terminus with a domain composed of residues 180-210.

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