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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >A structural model for a homeotic protein-extradenticle-DNA complex accounts for the choice of HOX protein in the heterodimer
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A structural model for a homeotic protein-extradenticle-DNA complex accounts for the choice of HOX protein in the heterodimer

机译:同源蛋白质-齿外-DNA复合体的结构模型解释了异二聚体中HOX蛋白的选择

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摘要

The genes of the homeotic complex (HOX) encode DNA binding homeodomain proteins that control developmental fates by differentially regulating the transcrip- tion of downstream target genes. Despite their unique in vivo functions, disparate HOX proteins often bind to very similar DNA sequences in vitro. Thus, a critical question is how HOX proteins select the correct sets of target genes in vivo. The homeodomain proteins encoded by the Drosophila extradenticle gene and its mammalian homologues, the pbx genes, contrib.- ute to HOX specificity by cooperatively binding to DNA with HOX proteins.
机译:同源复合物(HOX)的基因编码与DNA结合的同源域蛋白,该蛋白通过差异调节下游靶基因的转录来控制发育命运。尽管它们具有独特的体内功能,但它们在体外常常与非常相似的DNA序列结合。因此,一个关键的问题是HOX蛋白如何在体内选择正确的靶基因组。果蝇齿外基因编码的同源结构域蛋白及其哺乳动物同源物pbx基因通过与HOX蛋白协同结合到DNA而对HOX特异性有贡献。

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