PXD021728 is an
original dataset announced via ProteomeXchange.
Dataset Summary
Title | Caspase-3 cleaves extracellular vesicle proteins during auditory brainstem development |
Description | Sound localization requires extremely precise development of auditory brainstem circuits, the molecular mechanisms of which are largely unknown. We previously demonstrated a novel requirement for non-apoptotic activity of the protease caspase-3 in chick auditory brainstem development. Here, we used mass spectrometry to identify proteolytic substrates of caspase-3 during chick auditory brainstem development. Functional annotation analysis revealed that our caspase-3 substrates were enriched more than two-fold for proteins associated with extracellular vesicles (EVs), membrane-bound nanoparticles that function in intercellular communication. The proteome of EVs isolated from the auditory brainstem contained caspase-3 and was highly enriched for the caspase-3 substrates identified here. Additionally, we identified two caspase-3 substrates with known functions in axon guidance, namely Neural Cell Adhesion Molecule (NCAM) and Neuronal-glial Cell Adhesion Molecule (Ng-CAM), that were found in auditory brainstem EVs and expressed in the auditory pathway alongside cleaved caspase-3. Taken together, these data suggest a novel developmental mechanism whereby caspase-3 influences auditory brainstem circuit formation through the proteolytic cleavage of EV proteins. |
HostingRepository | PRIDE |
AnnounceDate | 2020-10-16 |
AnnouncementXML | Submission_2020-10-16_00:32:54.xml |
DigitalObjectIdentifier | |
ReviewLevel | Peer-reviewed dataset |
DatasetOrigin | Original dataset |
RepositorySupport | Unsupported dataset by repository |
PrimarySubmitter | Forrest Weghorst |
SpeciesList | scientific name: Gallus gallus (Chicken); NCBI TaxID: 9031; |
ModificationList | No PTMs are included in the dataset |
Instrument | LTQ Orbitrap Velos |
Dataset History
Revision | Datetime | Status | ChangeLog Entry |
0 | 2020-09-28 23:30:18 | ID requested | |
⏵ 1 | 2020-10-16 00:32:55 | announced | |
Publication List
Dataset with its publication pending |
Keyword List
submitter keyword: Caspase-3, chicken, neurodevelopment, brainstem |
Contact List
Karina Cramer |
contact affiliation | Department of Neurobiology and Behavior, University of California, Irvine |
contact email | cramerk@uci.edu |
lab head | |
Forrest Weghorst |
contact affiliation | Department of Neurobiology and Behavior, University of California, Irvine |
contact email | fweghors@uci.edu |
dataset submitter | |
Full Dataset Link List
Dataset FTP location
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PRIDE project URI |
Repository Record List
[ + ]
[ - ]
- PRIDE
- PXD021728
- Label: PRIDE project
- Name: Caspase-3 cleaves extracellular vesicle proteins during auditory brainstem development