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J Virol. 1988 February; 62(2): 501-510

Antibodies against synthetic peptides of herpes simplex virus type 1 glycoprotein D and their capability to neutralize viral infectivity in vitro.

Laboratorium voor Medische Microbiologie, Rijksuniversiteit Groningen, The Netherlands.

ABSTRACT

Peptides corresponding to residues 1-13, 9-21, 18-30, 82-93, 137-150, 181-197, 232-243, 235-243, 267-281, 271-281 and 302-315 of glycoprotein D of herpes simplex virus type 1 (HSV-1) were chemically synthesized. These peptides were coupled to carrier proteins, and the resulting conjugates were used to immunize rabbits. An enzyme-linked immunosorbent assay was used to determine antipeptide antibody titers in serum collected after immunization. All peptides appeared to be immunogenic in rabbits. Western immunoblot analysis with detergent extracts of HSV-1-infected Vero cells showed that antibodies against each of the peptides were able to react with the parent glycoprotein under denaturing conditions. Antisera against peptides 1-13, 9-21, and 18-30 neutralized HSV-1 infectivity in vitro, peptide 9-21 being the most successful in this respect. Immunization with a mixture of peptides 9-21 and 267-281 yielded antisera which reacted strongly with glycoprotein gD in Western blot analysis and showed a more solid virus-neutralizing activity in vitro.

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