Early DNA-binding polypeptides of Epstein-Barr virus

J. Roubal, B. Kallin, J. Luka, G. Klein

Research output: Contribution to journalArticlepeer-review

Abstract

The kinetics of Epstein-Barr virus (EBV)-specific protein synthesis has been studied after incubation of P3HR-1 cells with n-butyrate. The majority of the EBV polypeptides became detectable on SDS-polyacrylamide gel electrophoresis between 15 and 18 hr after addition of the drug. Overall viral protein synthesis was at maximum after about 24 hr. Some polypeptides appeared significantly earlier (152K, 55K, 51K) while others were synthesized during a limited period of the cycle only (65K). At least four of the polypeptides detected (152K, 134K, 55K, 51K) bound to DNA cellulose columns. The EBV specificity of the polypeptides was confirmed by immunoprecipitation and by two-dimensional gel analysis. The 152K polypeptide had a pI around 8 whereas the other polypeptides varied between basic and acidic pI. The DNA binding proteins isolated by DNA cellulose chromatography represent a subclass of the virus-specific early proteins that can be immunoprecipitated from the total cell extract.

Original languageEnglish
Pages (from-to)285-292
Number of pages8
JournalBehavioural Brain Research
Volume3
Issue number2
StatePublished - 1981
Externally publishedYes

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