Protein palmitoylation activate zygotic gene expression during the maternal-to-zygotic transition.

Protein palmitoylation activate zygotic gene expression during the maternal-to-zygotic transition.
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蛋白质棕榈酰化在母体到合子的转变过程中激活合子基因表达。

DOI:
10.1016/j.bbrc.2016.05.074
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发表时间:
2016-06
期刊:
Biochem Biophys Res Commun
影响因子:
--
通讯作者:
Hao Aijun
Hao Aijun
中科院分区:
其他
文献类型:
--
作者:
Du Zhaoxia;Chen Xueran;Li Xian;He Kun;Ji Shufang;Shi Wei;Hao Aijun

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受精后,母体因子直接发育并触发合子基因组在母体-合子过渡(MZT)中的激活。然而,激活脊椎动物合子程序的因素还没有很好地定义。在这里,我们发现蛋白棕榈酰化在斑马鱼获得转录能力和协调母体程序的清除中发挥了重要作用。抑制蛋白棕榈酰化后,斑马鱼胚胎在中囊胚过渡(MBT)前发育正常;然而,他们并没有发起epiboly。此外,我们的研究结果表明,蛋白棕榈酰化是启动合子发育程序和通过激活miR-430表达诱导母体程序清除所必需的。
Upon fertilization, maternal factors direct development and trigger zygotic genome activation at the maternal-to-zygotic transition (MZT). However, the factors that activate the zygotic program in vertebrates are not well defined. Here, we found that protein palmitoylation played an important role in acquiring transcriptional competency and orchestrating the clearance of the maternal program in zebrafish. After inhibition of protein palmitoylation, zebrafish embryos developed normally before the Mid-Blastula Transition (MBT); however, they did not initiate epiboly. Moreover, our results showed that protein palmitoylation is required to initiate the zygotic developmental program and induce clearance of the maternal program by activating miR-430 expression.
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