PXD057212

PXD057212 is an original dataset announced via ProteomeXchange.

Title	High confidence glycosomal membrane protein inventory unveils trypanosomal Peroxin PEX15
Description	Infections by trypanosomatid parasites cause Chagas disease, Human African Trypanosomiasis, and Leishmaniasis, affecting over 12 million people worldwide. Glycosomes, the unique peroxisome-related organelles of trypanosomes are essential for their survival, and hence their metabolic functions and biogenesis mediated by peroxins (PEX) are suitable as drug targets. Here we report on a comprehensive protein inventory of glycosomal membranes through advanced subcellular membrane protein profiling employing mass spectrometry. Our quantitative analysis resulted in the identification of 28 novel high confidence glycosomal membrane proteins. We validated four so far unknown glycosomal membrane proteins, including two tail-anchored (TA) proteins, a homolog of human peroxisomal PXMP4, and a Macrodomain containing protein. Using a structure-based approach, we identified one of the TA proteins as the long-sought Trypanosoma PEX15. Despite its low sequence similarity, Trypanosoma PEX15 exhibits structural and topological similarities with its yeast (Pex15) and human counterparts (PEX26). We show that PEX15 is an essential integral glycosomal membrane protein that interacts with PEX6. Accordingly, RNAi knockdown of PEX15 in bloodstream form trypanosomes demonstrates that it is essential for glycosome biogenesis and parasite survival. Considering the low degree of conservation with its human counterpart, PEX15 is a promising molecular target for drug development.
HostingRepository	PRIDE
AnnounceDate	2025-10-23
AnnouncementXML	Submission_2025-10-23_04:05:56.972.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Julian Bender
SpeciesList	scientific name: Trypanosoma brucei; NCBI TaxID: NEWT:5691;
ModificationList	No PTMs are included in the dataset
Instrument	LTQ Orbitrap Elite

Revision	Datetime	Status	ChangeLog Entry
0	2024-10-25 12:51:12	ID requested
⏵ 1	2025-10-23 04:05:57	announced

10.1016/J.CELREP.2025.115614;

submitter keyword: protein correlation profiling,Trypanosoma brucei, glycosomal membrane proteome, TbPEX15

Bettina Warscheid
contact affiliation	Chair of Biochemistry II, Theodor Boveri-Institute, Biocenter, University of Würzburg, Würzburg, Germany
contact email	bettina.warscheid@uni-wuerzburg.de
lab head
Julian Bender
contact affiliation	University of Wuerzburg Chair of Biochemistry II Am Hubland 97074 Würzburg
contact email	julian.bender@uni-wuerzburg.de
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/2025/10/PXD057212

PRIDE project URI

• PRIDE
  1. PXD057212
     1. Label: PRIDE project
     2. Name: High confidence glycosomal membrane protein inventory unveils trypanosomal Peroxin PEX15