Myb proteins regulate the expression of diverse target genes.

Hematopoiesis, the process by which mature blood cells arise, is controlled by multiple transcription factors, which act in stage- and lineage-specific complexes. It is a major goal to elucidate the genes regulated by these transcription factors, in order to obtain a full understanding of the process and its malignant counterpart, leukemia. Myb family transcription factors play a central role in hematopoiesis. To identify new Myb family target genes, we have used an inducible dominant-negative protein for a subtraction cloning protocol in a model cell system (FDCP-Mix) with many characteristics of normal hematopoiesis. We present here a novel group of 29 validated Myb family target genes of diverse functions.

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