PXD042727-1

PXD042727 is an original dataset announced via ProteomeXchange.

Title	A lysosomal delivery mechanism required for autophagosome degradation
Description	Autophagy is a finely orchestrated process required for the lysosomal degradation of cytosolic components. The final degradation step is essential for clearing autophagic cargo and recycling macromolecules. We identified a highly conserved transmembrane protein named RNAseK as a novel regulator of autophagosome degradation. Analyses of RNAseK knockout cells revealed that, while autophagosome maturation was intact, cargo degradation was severely disrupted. Importantly, lysosomal protease activity and acidification remained intact in the absence of RNAseK suggesting a specificity to autolysosome degradation. Analyses of lysosome fractions showed reduced levels of a subset of hydrolases in the absence of RNAseK. Of these, the knockdown of PLD3 led to a defect in autophagosome clearance. In addition, the lysosomal fraction of RNAseK-depleted cells exhibited an accumulation of the ESCRT-III complex component, VPS4a, which is required for the lysosomal targeting of PLD3. Altogether, our findings identified a lysosomal hydrolase delivery pathway required to mediate efficient autolysosome degradation.
HostingRepository	PRIDE
AnnounceDate	2024-07-05
AnnouncementXML	Submission_2024-07-04_22:24:35.541.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Alex von kriegsheim
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	2023-06-05 04:01:12	ID requested
⏵ 1	2024-07-04 22:24:35	announced

Dataset with its publication pending

submitter keyword: autophagy

alex von kriegsheim
contact affiliation	University of Edinburgh
contact email	avonkri@ed.ac.uk
lab head
Alex von kriegsheim
contact affiliation	University of Edinburgh
contact email	alex.vonkriegsheim@ucd.ie
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/2024/07/PXD042727

PRIDE project URI

• PRIDE
  1. PXD042727
     1. Label: PRIDE project
     2. Name: A lysosomal delivery mechanism required for autophagosome degradation