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首页> 外文期刊>Molecular and Cellular Biology >Distinct Domains of the GATA-1 Cofactor FOG-1 Differentially Influence Erythroid versus Megakaryocytic Maturation
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Distinct Domains of the GATA-1 Cofactor FOG-1 Differentially Influence Erythroid versus Megakaryocytic Maturation

机译:GATA-1辅因子FOG-1的不同域差异影响红系成熟与巨核成熟

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FOG family zinc finger proteins play essential roles in development through physical interaction with GATA factors. FOG-1, like its interacting partner GATA-1, is required for normal differentiation of erythroid and megakaryocytic cells. Here, we have developed a functional assay for FOG-1 based on its ability to rescue erythroid and megakaryocytic maturation of a genetically engineered FOG-1?/? cell line. We demonstrate that interaction through only one of FOG-1's four GATA-binding zinc fingers is sufficient for rescue, providing evidence against a model in which FOG-1 acts to bridge multiple GATA-binding DNA elements. Importantly, we find that distinct regions of FOG-1 differentially influence erythroid versus megakaryocyte maturation. As such, we propose that FOG-1 may modulate the fate of a bipotential erythroid/megakaryocytic precursor cell.
机译:FOG家族锌指蛋白通过与GATA因子的物理相互作用在发育中起重要作用。 FOG-1和它的相互作用伙伴GATA-1一样,是红系和巨核细胞正常分化所必需的。在此,我们基于FOG-1挽救了基因工程FOG-1 ?/?细胞系的红系和巨核细胞成熟的能力,开发了一种功能测定法。我们证明,仅通过FOG-1的四个与GATA结合的锌指之一进行相互作用就足以进行救援,从而针对FOG-1起到桥接多个GATA结合DNA元素的模型提供了证据。重要的是,我们发现FOG-1的不同区域差异影响红系和巨核细胞的成熟。因此,我们建议FOG-1可能调节双能红系/巨核细胞前体细胞的命运。

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