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. 1981 Apr;38(1):278–285. doi: 10.1128/jvi.38.1.278-285.1981

Respiratory syncytial virus proteins: identification by immunoprecipitation.

J M Bernstein, J F Hruska
PMCID: PMC171150  PMID: 7241656

Abstract

The proteins of respiratory syncytial virus have not been clearly identified due to the lability of the virus and difficulties in its purification. We have pulse-labeled respiratory syncytial virus with [35S]methionine and [35S]cysteine and analyzed cell lysates by polyacrylamide gel electrophoresis. Five 35S-labeled viral proteins ranging in molecular weight from 21,000 to 73,000 (VP73, VP44, VP35, VP28, and VP21) were easily discernable above background cellular proteins. Treatment of the infected cells with 0.15 M NaCl before labeling suppressed host cell protein synthesis and allowed clearer visualization of the five viral proteins by polyacrylamide gel electrophoresis. Three glycoproteins (VGP 92, VGP 50, and VGP 17) were also identified after labeling with [3H]glucosamine. Five of these polypeptides (VP51, VP44, VP35, VP28, and VGP92) were shown to be antigenically active because they could be immunoprecipitated with anti-respiratory syncytial virus antibody produced in New Zealand white rabbits, cotton rats, and humans before analysis by polyacrylamide gel electrophoresis.

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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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