PXD032745 is an
original dataset announced via ProteomeXchange.
Dataset Summary
Title | Copper metabolism in Naegleria gruberi and its deadly relative Naegleria fowleri. |
Description | Although copper is an essential nutrient crucial for many biological processes, an excessive concentration can be toxic and lead to cell death. The metabolism of this two-faced metal must be strictly regulated at the cell level. In this study, we investigated copper homeostasis in two related unicellular organisms: nonpathogenic Naegleria gruberi and the “brain-eating amoeba” Naegleria fowleri. We identified and confirmed the function of their specific copper transporters securing the main pathway of copper acquisition. Adjusting to different environments with varying copper levels during the life cycle of these organisms requires various metabolic adaptations. Using comparative proteomic analyses, measuring oxygen consumption, and enzymatic determination of NADH dehydrogenase, we showed that both amoebas respond to copper deprivation by upregulating the components of the branched electron transport chain: the alternative oxidase and alternative NADH dehydrogenase. Interestingly, analysis of iron acquisition indicated that this system is copper-dependent in N. gruberi but not in its pathogenic relative. Importantly, we identified a potential key protein of copper metabolism of N. gruberi, the homolog of human DJ-1 protein, which is known to be linked to Parkinson’s disease. Altogether, our study reveals the mechanisms underlying copper metabolism in the model amoeba N. gruberi and the fatal pathogen N. fowleri and highlights the differences between the two amoebas. |
HostingRepository | PRIDE |
AnnounceDate | 2022-05-20 |
AnnouncementXML | Submission_2022-05-20_09:10:35.651.xml |
DigitalObjectIdentifier | |
ReviewLevel | Peer-reviewed dataset |
DatasetOrigin | Original dataset |
RepositorySupport | Unsupported dataset by repository |
PrimarySubmitter | Pavel Talacko |
SpeciesList | scientific name: Naegleria fowleri; NCBI TaxID: 5763; scientific name: Naegleria gruberi; NCBI TaxID: 5762; |
ModificationList | No PTMs are included in the dataset |
Instrument | Orbitrap Fusion |
Dataset History
Revision | Datetime | Status | ChangeLog Entry |
0 | 2022-03-23 07:31:34 | ID requested | |
⏵ 1 | 2022-05-20 09:10:36 | announced | |
Publication List
Ž, en, í, š, kov, á K, Grechnikova M, Sutak R, . Front Cell Dev Biol, 10():853463(2022) [pubmed] |
Keyword List
submitter keyword: copper, alternative oxidase, alternative NADH dehydrogenase, Naegleria gruberi, Naegleria fowleri, DJ-1, CTR copper transporters, ETC |
Contact List
Robert Sutak |
contact affiliation | Department of Parasitology, Faculty of Science, Charles University, BIOCEV, Vestec, Czech Republic |
contact email | sutak@natur.cuni.cz |
lab head | |
Pavel Talacko |
contact affiliation | BIOCEV, Faculty of Science, Charles University in Prague |
contact email | pavel.talacko@natur.cuni.cz |
dataset submitter | |
Full Dataset Link List
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/2022/05/PXD032745 |
PRIDE project URI |
Repository Record List
[ + ]
[ - ]
- PRIDE
- PXD032745
- Label: PRIDE project
- Name: Copper metabolism in Naegleria gruberi and its deadly relative Naegleria fowleri.