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. 1987 Nov;6(11):3385-9.
doi: 10.1002/j.1460-2075.1987.tb02661.x.

The bovine leukemia virus p34 is a transactivator protein

L Willems  1 , A Gegonne, G Chen, A Burny, R Kettmann, J Ghysdael
Affiliations

The bovine leukemia virus p34 is a transactivator protein

L Willems et al. EMBO J. 1987 Nov.

Abstract

Recombinant Moloney murine retroviruses containing the BLV post-envelope long open reading frame were constructed and transfected into the psi 2 packaging cell line. They were shown to encode and to express a 34-kd protein able to transactivate the BLV long terminal repeat-directed gene expression in the respective transfected cells. These data demonstrate that the BLV X-LOR gene encodes a p34 transactivator product. Furthermore, the different cell lines produced infectious recombinant retroviruses capable of transferring X-LOR genes into recipient cells. The availability of the BLV transactivator protein should allow us to understand the role of the transactivator protein in BLV-induced leukemogenesis.

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