PXD032170 is an
original dataset announced via ProteomeXchange.
Dataset Summary
Title | The translation regulator Zar1l is required to control the timing of meiosis in Xenopus oocytes |
Description | In vertebrates, sexual reproduction depends on the precisely temporally controlled translation of mRNAs stockpiled in the oocyte. The RNA-binding proteins Zar1 and Zar2 have been implicated in translational control in oocytes of several vertebrate species, but how they act mechanistically is still incompletely understood. Here, we investigate the function of Zar1l, a so far uncharacterized member of the Zar protein family, in Xenopus laevis oocytes. By combining biochemical assays and mass spectrometry, we reveal that Zar1l is a constituent of a known large ribonucleoparticle containing the translation repressor 4E-T and the central polyadenylation regulator CPEB1. Employing TRIM-Away, we show that depletion of Zar1l from prophase-I arrested oocytes results in premature meiotic maturation upon hormone treatment. We provide evidence that this is based on the precocious expression of the kinase cMos, a key promotor of meiotic resumption. Based on our data, we propose a model according to which degradation of Zar1l results in dissociation of 4E-T from CPEB1, thus weakening translation inhibition imposed by the mRNA 3’UTR of cMos and probably also other M-phase promoting regulators. Thus, our detailed characterization of the function of Zar1l reveals novel mechanistic insights into the regulation of maternal mRNA translation during vertebrate meiosis. |
HostingRepository | PRIDE |
AnnounceDate | 2022-09-22 |
AnnouncementXML | Submission_2022-09-22_05:46:11.779.xml |
DigitalObjectIdentifier | |
ReviewLevel | Peer-reviewed dataset |
DatasetOrigin | Original dataset |
RepositorySupport | Unsupported dataset by repository |
PrimarySubmitter | Florian Stengel |
SpeciesList | scientific name: Xenopus laevis (African clawed frog); NCBI TaxID: 8355; |
ModificationList | monohydroxylated residue; iodoacetamide derivatized residue |
Instrument | Q Exactive HF |
Dataset History
Revision | Datetime | Status | ChangeLog Entry |
0 | 2022-03-09 02:39:43 | ID requested | |
⏵ 1 | 2022-09-22 05:46:12 | announced | |
2 | 2024-10-22 05:39:46 | announced | 2024-10-22: Updated project metadata. |
Publication List
Dataset with its publication pending |
Keyword List
submitter keyword: Xenopus laevis |
Zar1l |
Meiosis |
Contact List
Florian Stengel |
contact affiliation | Department of Biology, Cellular Proteostasis and Mass Sepectrometry, University of Konstanz |
contact email | florian.stengel@uni-konstanz.de |
lab head | |
Florian Stengel |
contact affiliation | Universität Konstanz |
contact email | florian.stengel@uni-konstanz.de |
dataset submitter | |
Full Dataset Link List
Dataset FTP location
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PRIDE project URI |
Repository Record List
[ + ]
[ - ]
- PRIDE
- PXD032170
- Label: PRIDE project
- Name: The translation regulator Zar1l is required to control the timing of meiosis in Xenopus oocytes