title: Mapping of two dominant sites of VP35 of Marburg virus.
abstract: Five types of anti-VP35 monoclonal antibodies (MAbs), four immune sera against Marburg virus (MBGV), and 11 overlapping recombinant VP35 fragments were used to map the epitopes for VP35 of MBGV. The purified full-size recombinant VP35 was highly immunogenic and retained the B-cell epitopes that were identical to those of the viral VP35. Two major sites on VP35 and a set of truncated VP35 fragments were found by use of an enzyme immunoassay and immunoblot. Site I was located in a region between amino acids 1 and 174 of the VP35 sequence, and only polyclonal antibodies (PAbs) against MBGV recognized epitopes at this site. Site II was mapped by use of anti-VP35 MAbs to the region between amino acid residues 167 and 278 of VP35. Amino acids 252-278 of VP35 might be involved in the formation of the epitopes for MAbs. B-cell epitopes were not found on the C-terminus of VP35 by use of PAbs or MAbs.
authors.affiliation: State Research Center of Virology and Biotechnology Vector, Koltsovo, Novosibirsk Region, Russia.
authors.forename: A V
authors.initials: AV
authors.lastname: Sorokin
authors.forename: E I
authors.initials: EI
authors.lastname: Kazachinskaia
authors.forename: A V
authors.initials: AV
authors.lastname: Ivanova
authors.forename: A V
authors.initials: AV
authors.lastname: Kachko
authors.forename: S V
authors.initials: SV
authors.lastname: Netesov
authors.forename: A A
authors.initials: AA
authors.lastname: Bukreyev
authors.forename: V B
authors.initials: VB
authors.lastname: Loktev
authors.forename: I A
authors.initials: IA
authors.lastname: Razumov
mesh_terms: D000818:Animals; D000911:Antibodies, Monoclonal / Q000096:biosynthesis / Q000276:immunology; D000914:Antibodies, Viral / Q000276:immunology; D000956:Antigens, Viral / Q000276:immunology*; D018604:Epitope Mapping; D018985:Epitopes, B-Lymphocyte / Q000276:immunology; D006801:Humans; D015151:Immunoblotting; D029024:Marburgvirus / Q000276:immunology*; D051379:Mice; D008807:Mice, Inbred BALB C; D010446:Peptide Fragments / Q000276:immunology; D010957:Plasmids; D011994:Recombinant Proteins / Q000737:chemistry / Q000235:genetics / Q000276:immunology; D014764:Viral Proteins / Q000276:immunology*; D054334:Viral Regulatory and Accessory Proteins
chemical_list: D000911:Antibodies, Monoclonal; D000914:Antibodies, Viral; D000956:Antigens, Viral; D018985:Epitopes, B-Lymphocyte; D010446:Peptide Fragments; D011994:Recombinant Proteins; C080980:VP35 protein, filovirus; D014764:Viral Proteins; D054334:Viral Regulatory and Accessory Proteins