Antibodies against a synthetic peptide of the poliovirus replicase protein: Reaction with native, virus-encoded proteins and inhibition of virus-specific polymerase activities in vitro

M. H. Baron, D. Baltimore

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

A carboxy-terminal peptide of the poliovirus replicase protein (p63) was chemically synthesized, coupled to bovine serum albumin carrier, and injected into rabbits. The resulting antisera reacted with six virus-specific proteins from HeLa cells infected with poliovirus: NCVP 0b, NCVP 1b, NCVP 2, a protein of about 60,000 daltons, p63, and NCVP 6b. The identity of the 60,000-dalton protein is not known, but the other results were consistent with previous experimental approaches which demonstrated that p63 and the other four polypeptides have common coding sequences. An amino-terminal of p63 failed to elicit an immune response in rabbits. Antibodies raised against the p63 carboxy-terminal peptide inhibited poliovirus replicase and polyuridylic acid polymerase activities in vitro, providing strong support for earlier suggestions that these activities are a property of a single virus-specific polypeptide.

Original languageEnglish
Pages (from-to)969-978
Number of pages10
JournalJournal of Virology
Volume43
Issue number3
DOIs
StatePublished - 1982
Externally publishedYes

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