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PXD071347-1

PXD071347 is an original dataset announced via ProteomeXchange.

Dataset Summary
TitleNovel SLCO2B1 mRNA isoform acts as a noncoding RNA and drives cancer progression through FMR1-mediated protein biosynthesis
DescriptionThe eukaryotic 5’ untranslated region (5’ UTR) canonically influences mRNA translation efficiency. However, the role of the 5’ UTR structure in blocking mRNA translation and turning a coding RNA into a noncoding RNA remains undocumented. Herein, we discovered a novel mRNA isoform of the human solute carrier organic anion transporter family member 2B1 (SLCO2B1) gene, named SLCO2B1-isoformNovel (SLCO2B1-isoN), whose 5’ end stem‒loop abrogates its translational capacity and turns it into a noncoding RNA. The SLCO2B1-isoN noncoding isoform stabilizes fragile X messenger ribonucleoprotein 1 (FMR1) to trigger hepatocellular carcinoma (HCC) progression by facilitating de novo protein biosynthesis. Targeting SLCO2B1-isoN effectively inhibited orthotopic tumor xenograft growth in vivo. In conclusion, this study revealed a previously unrecognized noncoding isoform of SLCO2B1 mRNA with a 5’ end stem‒loop structure and highlighted the dual characteristics of mRNAs harboring protein-coding and noncoding isoforms, providing new insights into the richness of genetic information in protein-coding genes.
HostingRepositoryiProX
AnnounceDate2025-11-27
AnnouncementXMLSubmission_2025-11-27_19:56:46.363.xml
DigitalObjectIdentifier
ReviewLevelPeer-reviewed dataset
DatasetOriginOriginal dataset
RepositorySupportUnsupported dataset by repository
PrimarySubmitterWenying Qiu
SpeciesList scientific name: Homo sapiens; NCBI TaxID: 9606;
ModificationListNo PTMs are included in the dataset
InstrumentOrbitrap Fusion
Dataset History
RevisionDatetimeStatusChangeLog Entry
02025-11-27 19:56:33ID requested
12025-11-27 19:56:46announced
Publication List
Dataset with its publication pending
Keyword List
submitter keyword: SLCO2B1-isoN, RNA pull-down, LC-MS/MS
Contact List
Xianghuo He
contact affiliationFudan University Shanghai Cancer Center and Institutes of Biomedical Sciences
contact emailxhhe@fudan.edu.cn
lab head
Wenying Qiu
contact affiliationFudan University Shanghai Cancer Center and Institutes of Biomedical Sciences
contact emailwenyingq1999@163.com
dataset submitter
Full Dataset Link List
iProX dataset URI