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Mol Cell Biol. 1992 April; 12(4): 1592-1604

Expression of the CD4 gene requires a Myb transcription factor.

G Siu, A L Wurster, J S Lipsick and S M Hedrick

Department of Biology, University of California, San Diego, La Jolla 92093-0063.

ABSTRACT

We have analyzed the control of developmental expression of the CD4 gene, which encodes an important recognition molecule and differentiation antigen on T cells. We have determined that the CD4 promoter alone functions at high levels in the CD4+ CD8- mature T cell but not at the early CD4+ CD8+ stage of T-cell development. In addition, the CD4 promoter functions only in T lymphocytes; thus, the stage and tissue specificity of the CD4 gene is mediated in part by its promoter. We have determined that a Myb transcription factor binds to the CD4 promoter and is critical for full promoter function. Thus, Myb plays an important role in the expression of T-cell-specific developmentally regulated genes.


Mol Cell Biol. 1992 April; 12(4): 1592-1604




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