PXD016523

PXD016523 is an original dataset announced via ProteomeXchange.

Title	Precise temporal regulation of post-transcriptional repressors is required for an orderly Drosophila maternal-to-zygotic transition
Description	In animal embryos the maternal-to-zygotic transition (MZT) hands developmental control from maternal to zygotic gene products. We show that the maternal proteome represents over half of the protein coding capacity of the Drosophila melanogaster genome and that 2% of this proteome is rapidly degraded during the MZT. Cleared proteins include the post-transcriptional repressors Cup, Trailer hitch (TRAL), Maternal expression at 31B (ME31B), and Smaug (SMG). While the ubiquitin-proteasome system is necessary for clearance of all four repressors, distinct E3 ligase complexes target them: the C-terminal to Lis1 Homology (CTLH) complex targets Cup, TRAL and ME31B for degradation early in the MZT; the Skp/Cullin/F-box-containing (SCF) complex targets SMG at the end of the MZT. Deleting the C-terminal 233 amino acids of SMG make it immune to degradation. We show that artificially persistent SMG downregulates the zygotic re-expression of mRNAs whose maternal contribution is cleared by SMG. Thus, clearance of SMG permits an orderly MZT.
HostingRepository	PRIDE
AnnounceDate	2020-06-05
AnnouncementXML	Submission_2020-06-04_22:35:06.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Meera Gupta
SpeciesList	scientific name: Drosophila melanogaster (Fruit fly); NCBI TaxID: 7227;
ModificationList	monohydroxylated residue
Instrument	Orbitrap Fusion Lumos

Revision	Datetime	Status	ChangeLog Entry
0	2019-11-29 02:38:14	ID requested
⏵ 1	2020-06-04 22:35:07	announced

Dataset with its publication pending

submitter keyword: MZT, drosophila, ubiquitin, development

Martin Wuhr
contact affiliation	Lewis Seigler Institute of Interactive Genomics and Depatment of MOlecular Biology, Princeton University
contact email	wuhr@princeton.edu
lab head
Meera Gupta
contact affiliation	Princeton University
contact email	meerag@princeton.edu
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/2020/06/PXD016523

PRIDE project URI

• PRIDE
  1. PXD016523
     1. Label: PRIDE project
     2. Name: Precise temporal regulation of post-transcriptional repressors is required for an orderly Drosophila maternal-to-zygotic transition