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. 1976 Mar;17(3):865–875. doi: 10.1128/jvi.17.3.865-875.1976

In vivo and in vitro synthesis of adenovirus type 2 early proteins.

J L Saborio, B Oberg
PMCID: PMC515487  PMID: 1255861

Abstract

The synthesis of adenovirus type 2 (Ad2)-induced early polypeptides was examined in vivo and in vitro by a combination of sodium dodecyl sulfate-polyacrylamide gel electrophoresis alone and specific immunoprecipitation followed by sodium dodecyl sulfate-polyacrylamide gel electrophoresis. Analysis of total [35S]methionine-labeled polypeptides synthesized in vivo at 3 h postinfection allowed us to detect in infected cells at lease 13 distinct polypeptides that are either absent or less conspicuous in extracts from mock-infected cells. These Ad2-induced early polypeptides have molecular weights ranging from 72 x 10(3) to 10.5 x 10(3) and have accordingly been designated as E72K to E10.5K. Nine of the in vivo synthesized early polypeptides can be precipitated specifically from infected cell extracts by antisera with specificity against early adenovirus proteins. In vitro translation of mRNA extracted from mock-infected cells and from Ad2-infected cells was carried out in preincubated Ehrlich ascites cell extracts. All the early Ad2-induced polypeptides identified in the extracts from infected cells labeled in vivo were also detected among the polypeptides immunoprecipitated specifically from the in vitro reaction mixtures programmed by RNA extracted at 4 h postinfection from Ad2-infected cells.

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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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