Maternal mRNAs with distinct 3' UTRs define the temporal pattern of Ccnb1 synthesis during mouse oocyte meiotic maturation.

Maternal mRNAs with distinct 3' UTRs define the temporal pattern of Ccnb1 synthesis during mouse oocyte meiotic maturation.
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DOI:
10.1101/gad.296871.117
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发表时间:
2017-07-01
影响因子:
10.5
通讯作者:
Conti M
Conti M
中科院分区:
生物学1区
文献类型:
--
作者:
Yang Y;Yang CR;Han SJ;Daldello EM;Cho A;Martins JPS;Xia G;Conti M

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在这项研究中,Yang等人发现小鼠卵母细胞中Ccnb 1 mRNA翻译的时机取决于具有不同3 'UTR的转录本的存在。他们的研究结果揭示了一个额外的翻译控制层,通过选择多聚腺苷酸化的使用来微调减数分裂进程的时间。雌性配子成熟的最后阶段发生在几乎没有转录的情况下,基因表达由母体mRNA的选择性解蔽、翻译和降解程序驱动。在这里,我们证明了小鼠卵母细胞中Ccnb1 mRNA翻译的时间依赖于具有不同3′非翻译区(UTR)的转录本的存在。这种3′ UTR异质性指导翻译激活或抑制的不同时间模式。顺式作用元件的包括或排除是这些不同的调节的原因。我们的研究结果揭示了一个额外的翻译控制层,通过选择多聚腺苷酸化的使用需要微调减数分裂进程的时间。
In this study, Yang et al. find that the timing of Ccnb1 mRNA translation in mouse oocytes is dependent on the presence of transcripts with different 3′ UTRs. Their results reveal an additional layer of translation control through alternative polyadenylation usage required to fine-tune the timing of meiosis progression. The final stages of female gamete maturation occur in the virtual absence of transcription, with gene expression driven by a program of selective unmasking, translation, and degradation of maternal mRNAs. Here we demonstrate that the timing of Ccnb1 mRNA translation in mouse oocytes is dependent on the presence of transcripts with different 3′ untranslated regions (UTRs). This 3′ UTR heterogeneity directs distinct temporal patterns of translational activation or repression. Inclusion or exclusion of cis-acting elements is responsible for these divergent regulations. Our findings reveal an additional layer of translation control through alternative polyadenylation usage required to fine-tune the timing of meiosis progression.
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