{"database":"Pride","file_versions":[{"headers":{"Content-Type":["application/json"]},"body":{"files":{"Txt":["ftp://ftp.pride.ebi.ac.uk/pride/data/archive/2026/05/PXD065952/info.txt","ftp://ftp.pride.ebi.ac.uk/pride/data/archive/2026/05/PXD065952/checksum.txt"],"Raw":["ftp://ftp.pride.ebi.ac.uk/pride/data/archive/2026/05/PXD065952/Seq78617_QE2.raw","ftp://ftp.pride.ebi.ac.uk/pride/data/archive/2026/05/PXD065952/Seq78614_QE2.raw","ftp://ftp.pride.ebi.ac.uk/pride/data/archive/2026/05/PXD065952/Seq78615_QE2.raw","ftp://ftp.pride.ebi.ac.uk/pride/data/archive/2026/05/PXD065952/Seq78616_QE2.raw","ftp://ftp.pride.ebi.ac.uk/pride/data/archive/2026/05/PXD065952/Seq78618_QE2.raw","ftp://ftp.pride.ebi.ac.uk/pride/data/archive/2026/05/PXD065952/Seq78613_QE2.raw"],"Other":["ftp://ftp.pride.ebi.ac.uk/pride/data/archive/2026/05/PXD065952/2024-07-01-decoys-reviewed-contam-UP000000589.fas","ftp://ftp.pride.ebi.ac.uk/pride/data/archive/2026/05/PXD065952/fragger.params","ftp://ftp.pride.ebi.ac.uk/pride/data/archive/2026/05/PXD065952/APMS-MKRN.zip","ftp://ftp.pride.ebi.ac.uk/pride/data/archive/2026/05/PXD065952/APMS-control.zip"]},"type":"primary"},"statusCode":"OK","statusCodeValue":200}],"scores":null,"additional":{"labhead_mail":["philippa@technion.ac.il"],"submitter":["Oded Kleifeld"],"technology_type":["Data-dependent acquisition","Affinity purification coupled with mass spectrometry proteomics","Mass Spectrometry","Bottom-up proteomics"],"software":["Not available"],"submitter_keywords":["Ap-ms","Mkrn3","Gnrh1 precursor protein"],"full_dataset_link":["https://www.ebi.ac.uk/pride/archive/projects/PXD065952"],"tissue":["Cell Culture"],"sample_protocol":["GT1-7 cells stably expressing GFP or GFP-Mkrn3 were lysed in RIPA lysis buffer, and immunoprecipitation performed using GFP traps (GTA-10 Chromotek) overnight (ON), according to the manufacturer’s protocol. The immunoprecipitated proteins were washed 3 times and eluted with Lammeli sample buffer before separation on a 12.5% gel. After staining, 2.5 cm gel fragments were excised for each sample and taken for tryptic digestion and analysis in a Q-Exactive plus mass spectrometer (Thermo)"],"repository":["Pride"],"quantification_method":[""],"modification":[""],"data_protocol":["The raw files were analyzed using MSfragger, as above, run separately for the IP and control samples, ensuring that the match between runs (MBR) option did not compare between these samples which are supposed to be different. The outputs were then combined using a custom R script, and downstream analysis was performed on Perseus."],"omics_type":["Proteomics"],"labhead":["Philippa Melamed"],"instrument_platform":[""],"labhead_affiliation":["The Dr. Irving and Jeanette Benveniste Chair in Life Sciences, Faculty of Biology, Technion-Israel Institute of Technology, Haifa 32000 ISRAEL"],"submission_type":["PARTIAL"],"species":["Mus Musculus (mouse)"],"publication":["Not available"],"submitter_mail":["okleifeld@technion.ac.il"],"submitter_affiliation":["Technion"],"submitter_country":["Israel"],"additional_accession":[]},"is_claimable":false,"name":"Mkrn3 binds Gnrh1 mRNA to alter subcellular localization of the Gnrh1 precursor protein - Mkrn3-AP-MS","description":"Loss-of-function mutations in MKRN3 cause central precocious puberty, and our findings show that MKRN3 regulates GnRH production by binding the Gnrh1 3′UTR and altering subcellular localization of its precursor protein through post-transcriptional mechanisms. This function likely involves interactions with RNA-binding proteins such as IGF2BP2 and may extend to other cell types and neuropeptides. This is work is for the affinity purification mass spectrometry (AP-MS)of 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