A novel mRNA 3' untranslated region translational control sequence regulates Xenopus Wee1 mRNA translation.

A novel mRNA 3' untranslated region translational control sequence regulates Xenopus Wee1 mRNA translation. Research Abstract Details 

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A novel mRNA 3' untranslated region translational control sequence regulates Xenopus Wee1 mRNA translation. Abstract Text:

Cell cycle progression during oocyte maturation requires the strict temporal regulation of maternal mRNA translation. The intrinsic basis of this temporal control has not been fully elucidated but appears to involve distinct mRNA 3' UTR regulatory elements. In this study, we identify a novel translational control sequence (TCS) that exerts repression of target mRNAs in immature oocytes of the frog, Xenopus laevis, and can direct early cytoplasmic polyadenylation and translational activation during oocyte maturation. The TCS is functionally distinct from the previously characterized Musashi/polyadenylation response element (PRE) and the cytoplasmic polyadenylation element (CPE). We report that TCS elements exert translational repression in both the Wee1 mRNA 3' UTR and the pericentriolar material-1 (Pcm-1) mRNA 3' UTR in immature oocytes. During oocyte maturation, TCS function directs the early translational activation of the Pcm-1 mRNA. By contrast, we demonstrate that CPE sequences flanking the TCS elements in the Wee1 3' UTR suppress the ability of the TCS to direct early translational activation. Our results indicate that a functional hierarchy exists between these distinct 3' UTR regulatory elements to control the timing of maternal mRNA translational activation during oocyte maturation.

A novel mRNA 3' untranslated region translational control sequence regulates Xenopus Wee1 mRNA translation. Publishing Authors By Initials

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A novel mRNA 3' untranslated region translational control sequence regulates Xenopus Wee1 mRNA translation. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Developmental biology

VOLUME: 317

Page Numbers: 454-66

Journal Abbreviation: Dev. Biol.

ISSN: 1095-564X

DAY: 29

MONTH: 02

YEAR: 2008

A novel mRNA 3' untranslated region translational control sequence regulates Xenopus Wee1 mRNA translation. Information

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LANGUAGE: eng

NlmUniqueID: 372762

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Grant and Affiliation Information for A novel mRNA 3' untranslated region translational control sequence regulates Xenopus Wee1 mRNA translation.

AFFILIATION: Department of Physiology and Biophysics, University of Arkansas for Medical Sciences, Slot 814, 4301 W. Markham St., Little Rock, AR 72205, USA.

Country: United States

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MEDLINETA: Dev Biol

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