Comparative functional characterization of the feline foamy virus transactivator reveals its species specificity

Jochen Bodem, Yibin Kang, Rolf M. Flügel

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

Foamy virus (FV) Bel1/Tas transactivators act as key regulators of gene expression and directly bind DNA Bel1 response elements (BREs) in both the internal (IP) and 5′LTR promoters. Here, we report the mapping and the virus species specificity of the nonhomologous feline foamy virus (FFV) BREs in both promoters. The data indicate that FFV Bel1 did not bind the primate FV IP.BRE and that primate FV Bel1 was not capable of binding the FFV IP.BRE. In addition, we show that the C-terminal activation domain of FFV Bel1 does not contribute to DNA binding because a C-terminal trans-dominant negative FFV Bel1 mutant was still able to bind to both promoters.

Original languageEnglish (US)
Pages (from-to)32-36
Number of pages5
JournalVirology
Volume318
Issue number1
DOIs
StatePublished - Jan 5 2004
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Virology

Keywords

  • Bel1 transactivator
  • Cat foamy virus
  • Spumavirus

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