Knock-in Mutation of Transcription Factor GATA-3 into the GATA-1 Locus: Partial Rescue of GATA-1 Loss of Function in Erythroid Cells
نویسندگان
چکیده
منابع مشابه
GATA factor transgenes under GATA-1 locus control rescue germline GATA-1 mutant deficiencies.
GATA-1 germline mutation in mice results in embryonic lethality due to defective erythroid cell maturation, and thus other hematopoietic GATA factors do not compensate for the loss of GATA-1. To determine whether the obligate presence of GATA-1 in erythroid cells is due to its distinct biochemical properties or spatiotemporal patterning, we attempted to rescue GATA-1 mutant mice with hematopoie...
متن کاملPU.1 inhibits GATA-1 function and erythroid differentiation by blocking GATA-1 DNA binding.
The lineage-specific transcription factors GATA-1 and PU.1 can physically interact to inhibit each other's function, but the mechanism of repression of GATA-1 function by PU.1 has not been elucidated. Both the N terminus and the C terminus of PU.1 can physically interact with the C-terminal zinc finger of GATA-1. It is demonstrated that the PU.1 N terminus, but not the C terminus, is required f...
متن کاملRescue of GATA-1-deficient embryonic stem cells by heterologous GATA-binding proteins.
Totipotent murine embryonic stem (ES) cells can be differentiated in vitro to form embryoid bodies (EBs) containing hematopoietic cells of multiple lineages, including erythroid cells. In vitro erythroid development parallels that which is observed in vivo. ES cells in which the gene for the erythroid transcription factor GATA-1 has been disrupted fail to produce mature erythroid cells either i...
متن کاملMultipotential differentiation ability of GATA-1-null erythroid-committed cells.
GATA-1, a zinc finger transcription factor, has been believed to be indispensable for the survival of proerythroblasts. However, we found that GATA-1-null proerythroblasts could survive and proliferate on OP9 stroma cells in the presence of erythropoietin. Furthermore, myeloid and mast cells were induced from the GATA-1-null proerythroblasts by the stimulation of granulocyte-macrophage colony-s...
متن کاملDynamics of GATA transcription factor expression during erythroid differentiation.
Although the formation of terminally differentiated erythroid cells has been shown to require the presence of a functional GATA-1 gene in vivo, the role of this transcription factor and other members of the GATA family at earlier stages of erythroid differentiation is unclear. In this report, the expression of GATA-1, GATA-2, and GATA-3 has been examined in enriched peripheral blood progenitors...
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ژورنال
عنوان ژورنال: Developmental Biology
سال: 1998
ISSN: 0012-1606
DOI: 10.1006/dbio.1997.8842