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PXD030480

PXD030480 is an original dataset announced via ProteomeXchange.

Dataset Summary
TitleComparative analyses of vertebrate CPEB-family of proteins define two sub-families with distinct, but coordinated, functions in post-transcriptional regulation of gene expressionComparative analyses of vertebrate CPEB-family of proteins define two sub-families with distinct, but coordinated, functions in post-transcriptional regulation of gene expression
DescriptionBackground: The vertebrate CPEB-family of RNA-binding proteins promote translational repression or activation of their target mRNAs, which harbor cytoplasmic polyadenylation elements (CPEs) in their 3’ UTRs, through cytoplasmic changes in their poly(A) tail lengths. However, their regulation(s) and mechanism(s) of action have not been systematically addressed as a family. Results: Here we perform a comparative analysis of the four vertebrate CPEBs in their regulation by phosphorylation, supramolecular assemblies’ composition and properties and in their mRNA targets. Conclusions: We show that although all four CPEBs are able to recruit CCR4-NOT deadenylation complex when not phosphorylated, their mechanisms of action determine two subfamilies with distinct, but coordinated, regulation by phosphorylation and target specificity. Thus, CPEB1 forms ribonucleoprotein complexes that are remodeled upon a single phosphorylation event, by AurkA, and are associated with mRNAs containing canonical CPEs. On the other hand, CPEB2-4 are regulated by multiple proline-directed phosphorylations that control their liquid-liquid phase-separation. CPEB2-4 mRNA-targets include CPEB1-bound transcripts, with canonical CPEs, but also a specific subset of mRNAs with non-canonical CPEs. In turn, CPEB2-4 coacervates display compositional, morphological and dynamic differences. Altogether, these results show how, globally, the CPEB family of proteins is able to integrate cellular cues to generate a finetuned adaptive response in gene expression regulation.
HostingRepositoryPRIDE
AnnounceDate2022-10-05
AnnouncementXMLSubmission_2022-10-05_04:23:54.085.xml
DigitalObjectIdentifier
ReviewLevelPeer-reviewed dataset
DatasetOriginOriginal dataset
RepositorySupportUnsupported dataset by repository
PrimarySubmitterMarina Gay
SpeciesList scientific name: Xenopus laevis (African clawed frog); NCBI TaxID: 8355;
ModificationListphosphorylated residue; monohydroxylated residue; iodoacetamide derivatized residue
InstrumentOrbitrap Fusion Lumos
Dataset History
RevisionDatetimeStatusChangeLog Entry
02021-12-17 04:39:05ID requested
12022-10-05 04:23:54announced
Publication List
Duran-Arqu, é B, Ca, ñ, ete M, Castellazzi CL, Bartomeu A, Ferrer-Caelles A, Reina O, Caball, é A, Gay M, Arauz-Garofalo G, Belloc E, Mendez R, Comparative analyses of vertebrate CPEB proteins define two subfamilies with coordinated yet distinct functions in post-transcriptional gene regulation. Genome Biol, 23(1):192(2022) [pubmed]
Keyword List
submitter keyword: mRNA translation, deadenylation, 3’UTR, BioID, phase-separation, phosphorylation, CCR4-NOT complex, CPEB
Contact List
Raul Medez
contact affiliationInstitute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, 08028 Barcelona, Spain Institució Catalana de Recerca i Estudis Avançats (ICREA), 08010 Barcelona, Spain
contact emailraul.mendez@irbbarcelona.org
lab head
Marina Gay
contact affiliationInstitute for Research in Biomedicine
contact emailmarina.gay@irbbarcelona.org
dataset submitter
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