PXD043002

PXD043002 is an original dataset announced via ProteomeXchange.

Title	Global phosphoproteome of Leishmania mexicana developmental stages
Description	Using a combination of phosphoproteome enrichment and tandem mass tag (TMT) labelling-based quantitative proteomic mass spectrometry (MS), we robustly identified and quantified 1,833 phosphorylated proteins across three life cycle stages of Leishmania mexicana (L. mexicana) parasite. Protein kinase domain was the most enriched protein domain in the L. mexicana phosphoproteome. Additionally, this study systematically characterised the perturbing effect of HSP90 inhibition on the global phosphoproteome of the L. mexicana across its life cycle stages and showed that the inhibition causes substantially distinct molecular effects in the promastigotes and the amastigotes. While tanespimycin treatment decreased the phosphorylation of HSP90 and its co-chaperon HSP70 in the amastigotes, the opposite effect was observed in the promastigotes. Additionally, our results show that while kinase activity and microtubule motor activity are highly represented in the negatively affected phosphoproteins of the promastigotes, ribosomal proteins, protein folding, and proton channel activity are preferentially enriched in the perturbed amastigote phosphoproteome. Our results also show that RNA helicase domain was distinctively enriched among the positively affected RNA-binding amastigote phosphoproteome. This study reveals the dramatically different ways the HSP90 inhibition stress modulates the phosphoproteome of the pathogenic amastigotes and provides in-depth insight into the scope of selective molecular targeting in the therapeutically relevant amastigotes.
HostingRepository	PRIDE
AnnounceDate	2024-10-22
AnnouncementXML	Submission_2024-10-22_06:04:57.470.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Karunakaran Kalesh
SpeciesList	scientific name: Leishmania mexicana MHOM/GT/2001/U1103; NCBI TaxID: 929439;
ModificationList	phosphorylated residue
Instrument	LTQ Orbitrap Elite

Revision	Datetime	Status	ChangeLog Entry
0	2023-06-15 01:45:24	ID requested
1	2023-10-04 09:44:25	announced
⏵ 2	2024-10-22 06:04:57	announced	2024-10-22: Updated project metadata.

Dataset with its publication pending

submitter keyword: phosphoproteome, TMT labelling,Leishmania

Kalesh Karunakaran
contact affiliation	School of Health and Life Sciences, Teesside University, UK
contact email	k.karunakaran@tees.ac.uk
lab head
Karunakaran Kalesh
contact affiliation	Teesside University
contact email	k.karunakaran@tees.ac.uk
dataset submitter

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PRIDE project URI

• PRIDE
  1. PXD043002
     1. Label: PRIDE project
     2. Name: Global phosphoproteome of Leishmania mexicana developmental stages