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PXD005601

PXD005601 is an original dataset announced via ProteomeXchange.

Dataset Summary
TitlemRNA-binding proteins of Leishmania donovani LC-MSMS
DescriptionLeishmania are unicellular eukaryotes responsible for leishmaniasis in humans. Like other trypanosomatids, leishmania regulate protein coding gene expression almost exclusively at the post-transcriptional level with the help of RNA binding proteins (RBPs). Due to the presence of polycystronic transcription units, leishmania do not regulate RNA polymerase II-dependent transcription initiation. Recent evidence suggests that the main control points in gene expression are mRNA degradation and translation. Protein-RNA interactions are involved in every aspect of RNA biology, such as mRNA splicing, polyadenylation, localization, degradation, and translation. A detailed picture of these interactions would likely prove to be highly informative in understanding leishmania biology and virulence. We developed a strategy involving covalent UV cross-linking of RBPs to mRNA in vivo, followed by interactome capture using oligo(dT) magnetic beads to define comprehensively the mRNA interactome of growing L. donovani amastigotes. The protein mass spectrometry analysis of captured proteins identified 81 mRNA interacting proteins which withstood very stringent washing conditions. Strikingly, we found that 49 of these mRNA interacting proteins had no orthologs or homologs in the human genome. Consequently, these may represent high quality candidates for selective drug targeting leading to novel therapeutics. These results show that this unbiased, systematic strategy has the promise to be applicable to study the mRNA interactome during various biological settings such as metabolic changes, stress (low pH environment, oxidative stress and nutrient deprivation) or drug treatment.
HostingRepositoryPRIDE
AnnounceDate2024-10-22
AnnouncementXMLSubmission_2024-10-22_04:35:14.091.xml
DigitalObjectIdentifier
ReviewLevelPeer-reviewed dataset
DatasetOriginOriginal dataset
RepositorySupportUnsupported dataset by repository
PrimarySubmitterJenny Moon
SpeciesList scientific name: Leishmania donovani; NCBI TaxID: 5661;
ModificationListmonohydroxylated residue; acetylated residue; iodoacetamide derivatized residue
InstrumentBruker software
Dataset History
RevisionDatetimeStatusChangeLog Entry
02016-12-20 01:49:51ID requested
12017-02-08 08:31:41announced
22024-10-22 04:35:22announced2024-10-22: Updated project metadata.
Publication List
Nandan D, Thomas SA, Nguyen A, Moon KM, Foster LJ, Reiner NE, Comprehensive Identification of mRNA-Binding Proteins of Leishmania donovani by Interactome Capture. PLoS One, 12(1):e0170068(2017) [pubmed]
10.1371/journal.pone.0170068;
Keyword List
curator keyword: Biological, Biomedical
submitter keyword: LC-MSMS, mRNA-binding proteins,Leishmania donovani, interactome capture
Contact List
Leonard James Foster
contact affiliationBiochemistry and Molecular Biology, University of British Columbia, Canada
contact emailfoster@msl.ubc.ca
lab head
Jenny Moon
contact affiliationUniversity of British Columbia
contact emailkyungmee@mail.ubc.ca
dataset submitter
Full Dataset Link List
Dataset FTP location
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PRIDE project URI
Repository Record List
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