PXD039423-1

PXD039423 is an original dataset announced via ProteomeXchange.

Title	Preimplantation mouse embryo proteome during 8C to 16C division
Description	Preimplantation stages of mouse embryo development involve temporal and spatial specification and segregation of three late blastocyst cell lineages; trophectoderm (TE), primitive endoderm (PrE) and epiblast (EPI). Spatial separation of the outer TE lineage from the two inner-cell-mass (ICM) lineages (PrE and EPI) starts with the 8- to 16-cell transition and concludes following transit through the 16- to 32-cell stages. This results in a nascent early blastocyst ICM derived from descendants of primary founding inner cells and a secondarily contributed population; of which subsequent relative EPI versus PrE potencies are subject to debate. We showed that generation of primary but not the secondary ICM populations is highly dependent on temporally discreet activation of the mammalian target of rapamycin (mTOR – specifically mTORC1) around 8-cell stage M-phase entry. Moreover, that this role is mediated via the regulated function of the 7-methylguanosine- (7mG) cap binding initiation complex (EIF4F) and potentiating the translation of a subset of key but otherwise intransigent mRNAs containing 5’ UTR terminal oligopyrimidine (TOP-) sequence motifs. To find out translation of which mRNAs is regulated by mTOR during 8- to 16-cell transition, we analysed proteomes of control and mTOR-inhibited embryos during this time window.
HostingRepository	PRIDE
AnnounceDate	2023-08-18
AnnouncementXML	Submission_2023-08-18_05:11:40.534.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	DavidPotesil
SpeciesList	scientific name: Mus musculus (Mouse); NCBI TaxID: 10090;
ModificationList	No PTMs are included in the dataset
Instrument	Orbitrap Fusion Lumos

Revision	Datetime	Status	ChangeLog Entry
0	2023-01-13 07:24:18	ID requested
⏵ 1	2023-08-18 05:11:40	announced
2	2023-11-14 07:01:27	announced	2023-11-14: Updated project metadata.
3	2024-10-22 06:00:36	announced	2024-10-22: Updated project metadata.

submitter keyword: mouse preimplantation embryos, cap-dependent translation, mTOR

ZbynekZdrahal
contact affiliation	Proteomics Core Facility and Research Group Proteomics, CEITEC-MU, Masaryk University, Brno, Czech Republic
contact email	zdrahal@sci.muni.cz
lab head
DavidPotesil
contact affiliation	Proteomics Core Facility and Research Group Proteomics CEITEC-MU Masaryk University Brno, Czech Republic
contact email	david.potesil@ceitec.muni.cz
dataset submitter

Dataset FTP location NOTE: Most web browsers have now discontinued native support for FTP access within the browser window. But you can usually install another FTP app (we recommend FileZilla) and configure your browser to launch the external application when you click on this FTP link. Or otherwise, launch an app that supports FTP (like FileZilla) and use this address: ftp://ftp.pride.ebi.ac.uk/pride/data/archive/2023/08/PXD039423

PRIDE project URI

• PRIDE
  1. PXD039423
     1. Label: PRIDE project
     2. Name: Preimplantation mouse embryo proteome during 8C to 16C division