Complex formation between stage-specific oocyte factors and a Xenopus mRNA localization element.

Complex formation between stage-specific oocyte factors and a Xenopus mRNA localization element.
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阶段特异性卵母细胞因子和非洲爪蟾 mRNA 定位元件之间的复合物形成。

DOI:
10.1073/pnas.93.25.14608
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发表时间:
1996
影响因子:
11.1
通讯作者:
Mowry,KL
Mowry,KL
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Mowry,KL

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一个长期存在的观点是,卵中母体因子的定位可以为早期胚胎的模式形成提供基础。定位的信息可以存储为RNA,一个例子是Vg 1 RNA,它只定位于异种卵母细胞和卵的植物半球。Vg 1 mRNA的定位由其3′端非翻译区中的340个核苷酸的序列元件指导。为了了解定位的机制,我已经测试了来自卵母细胞的因子是否与RNA定位序列特异性地相互作用。结果表明,在体外和体内,一组卵母细胞蛋白与定位元件形成复合物。这些蛋白质在卵子发生阶段特异性富集,在此期间发生定位,并识别RNA定位元件的子元件,这些子元件对于体内定位是必需的。 这些数据表明,定位特异性RNA-蛋白质复合物的形成可能是引导Vg 1 mRNA到达其亚细胞目的地的第一步。
It is a long-standing proposal that localization of maternal factors in eggs can provide the basis for pattern formation in the early embryo. The localized information can be stored as RNA, one example being Vg1 RNA, which is localized exclusively to the vegetal hemisphere ofXenopusoocytes and eggs. Localization of Vg1 mRNA is directed by a 340-nt sequence element contained within its 3′ untranslated region. To understand the mechanism of localization, I have tested whether factors from the oocyte interact specifically with the RNA localization sequence. Results presented here show that a set of oocyte proteins form complexes with the localization element bothin vitroandin vivo. These proteins are specifically enriched in the stages of oogenesis during which localization occurs and recognize sub-elements of the RNA localization element that are essential for localizationin vivo. These data suggest that formation of a localization-specific RNA–protein complex may be the first step in directing Vg1 mRNA to its subcellular destination.
果蝇背腹轴的形成取决于 gurken 基因的正确剂量。
DOI: 10.1242/dev.120.9.2457
发表时间: 1994
期刊: Development (Cambridge, England)
影响因子: --
作者:
Neuman-Silberberg,FS;Schupbach,T
通讯作者: Schupbach,T
局部母体 mRNA 易位至非洲爪蟾卵母细胞的植物极
DOI: --
发表时间: 1987
期刊: Nature
影响因子: 64.8
作者:
D. Melton
通讯作者: D. Melton
DOI: 10.1016/0168-9525(93)90157-d
发表时间: 1993
期刊: Development
影响因子: 4.6
作者:
L. A. Mosquera;C. Forristall;Yi Zhou;M. L. King
通讯作者: L. A. Mosquera;C. Forristall;Yi Zhou;M. L. King
exl 蛋白特异性结合 BLE1(一种双类 mRNA 定位元件),并且是其活性的一个阶段所必需的。
影响因子: 11.1
作者:
P. Macdonald;A. Leask;K. Kerr
通讯作者: K. Kerr
非洲爪蟾卵母细胞在特定培养基中的长期生长和分化。
DOI: 10.1073/pnas.75.11.5534
发表时间: 1978
影响因子: 11.1
作者:
R. Wallace;Z. Misulovin
通讯作者: Z. Misulovin