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Wnt proteins influence many aspects of embryonic development, and their activity is regulated by several secreted antagonists, including the Xenopus Dickkopf-1 (xDkk-1) protein. xDkk-1 inhibits Wnt activities in Xenopus embryos and may play a role in induction of head structures. Here, we characterize a family of human Dkk-related genes composed of Dkk-1,(More)
Knockout studies have shown that PU.1 is required for the normal development of many blood cell lineages, yet overexpression of this transcription factor in erythroid cells can lead to erythroleukemia. Thus, how the tissue-specific expression of PU.1 is regulated is important to our understanding of hematopoiesis. In this study, we showed that B and(More)
In this report we present a rapid and inexpensive PCR-based method to screen recombinant DNA libraries. The efficiency of this method was demonstrated by the isolation of clones of interest from three different libraries using different vector systems. This method is nonradioactive and makes it easier to handle a large number of samples since there is no(More)
The c-Myb protein is a sequence specific DNA-binding transcriptional regulator that is critically involved in the regulation of hematopoietic differentiation. Its role in these processes suggests that the function of c-Myb may be important early in the establishment of the hematopoietic lineage. We have isolated cDNA and partial genomic clones representing(More)
The Forkhead gene (FKH) regulates morphogenesis in Drosophila. It is the prototype of a new family of transcriptional activators. We used the polymerase chain reaction (PCR) to analyze the expression pattern of this new transcriptional regulatory gene family in primitive hematopoeitic progenitors. Partially degenerate oligonucleotides to two conserved amino(More)
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