Tube Is an IRAK-4 homolog in a Toll pathway adapted for development and immunity.

Tube Is an IRAK-4 homolog in a Toll pathway adapted for development and immunity.
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Tube 是 Toll 通路中的 IRAK-4 同源物,适合发育和免疫。

DOI:
10.1159/000200773
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发表时间:
2009
影响因子:
5.3
通讯作者:
Wasserman, Steven A.
Wasserman, Steven A.
中科院分区:
医学2区
文献类型:
--
作者:
Towb, Par;Sun, Huaiyu;Wasserman, Steven A.

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Toll受体通过蛋白激酶的Pelle和IRAK家族起作用,介导从昆虫到人类的动物的先天免疫应答。在果蝇中,Toll通路也在合胞体胚胎的模式化中起作用,并且需要Tube,一种缺乏催化结构域的果蝇特异性衔接蛋白。在这里,我们提供的证据表明,管,Pelle和IRAK蛋白起源于一个共同的祖先基因。在基因复制后,IRAK-4、Tube-like激酶和Tube从IRAK-1、Pelle和相关激酶中分化出来。值得注意的是,果蝇胚胎中Tube和Pelle的功能可以在以预测的祖基因为模型的嵌合体中重建。此外,下游转录因子的趋异特性与发育功能相关。总之,这些研究揭示了以前未被认识到的Toll信号在苍蝇和人类先天免疫中的相似之处,并揭示了通路组织和功能的演变。
Acting through the Pelle and IRAK family of protein kinases, Toll receptors mediate innate immune responses in animals ranging from insects to humans. In flies, the Toll pathway also functions in patterning of the syncytial embryo and requires Tube, a Drosophila-specific adaptor protein lacking a catalytic domain. Here we provide evidence that the Tube, Pelle, and IRAK proteins originated from a common ancestral gene. Following gene duplication, IRAK-4, Tube-like kinases, and Tube diverged from IRAK-1, Pelle, and related kinases. Remarkably, the function of Tube and Pelle in Drosophila embryos can be reconstituted in a chimera modeled on the predicted progenitor gene. In addition, a divergent property of downstream transcription factors was correlated with developmental function. Together, these studies reveal previously unrecognized parallels in Toll signaling in fly and human innate immunity and shed light on the evolution of pathway organization and function.
DOI: 10.1126/science.271.5252.1128
发表时间: 1996-02-23
期刊: SCIENCE
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