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. 1975 Jun;15(6):1357–1366. doi: 10.1128/jvi.15.6.1357-1366.1975

Inhibition of viral transcriptase by immunoglobulin directed against the nucleocapsid NS protein of vesicular stomatitis virus.

R L Imblum, R R Wagner
PMCID: PMC354603  PMID: 49440

Abstract

In search of an anti-transcriptase, antibody was raised in rabbits to partially purified, soluble NS protein present in cytoplasmic extracts of cells infected with the Indiana serotype of vesicular stomatitis (VSInd) virus. This antiserum gave specific reactions of identity by agar immunodiffusion with both cytoplasmic and virion NS protein. NS antiserum also preferentially precipitated NS 3-H-labeled protein from infected cytoplasmic extracts, whereas anti-whole VSInd virion serum also precipitated N 3-H-labeled protein from extracts both of infected cytoplasm and virion nucleocapsids. Transcriptase activity of VSInd cytoplasmic or virion-derived nucleocapsids was effectively inhibited by ribonuclease-free immunoglubulin prepared from homologous NSInd antiserum or from anti-whole vesicular stomatitis virus serum. Transcriptase activity of heterologous New Jersey serotype (VSNJ) nucleocapsids and virions was not appreciably affected by anti-NSInd or by anti-whole VSInd virion gamma globulin. Anti-NS gamma glubulin immediately switched off RNA synthesis by actively transcribing VSInd nucleocapsids, a finding which suggests that NS antibody inhibits RNA chain elongation.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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