PXD025301

PXD025301 is an original dataset announced via ProteomeXchange.

Title	TBK1 interacts with tau and enhances neurodegeneration in tauopathy
Description	One of the defining pathological features of Alzheimer’s Disease (AD) is the deposition of neurofibrillary tangles (NFTs) composed of hyperphosphorylated tau in the brain. Aberrant activation of kinases in AD has been suggested to enhance phosphorylation and toxicity of tau, making the responsible tau kinases attractive therapeutic targets. The full complement of tau interacting kinases in AD brain and their activity in disease remains incompletely defined. Here, immunoaffinity enrichment coupled with mass spectrometry (MS) identified TANK-binding kinase 1 (TBK1) as a tau-interacting partner in human AD cortical brain tissues. We validated this interaction in human AD, familial frontotemporal dementia and parkinsonism linked to chromosome 17 (FTDP-17) caused by mutations in MAPT (R406W & P301L) and corticobasal degeneration (CBD) postmortem brain tissues as well as human cell lines. Further, we document increased TBK1 activation in both AD and FTDP-17 and map TBK1 phosphorylation sites on tau based on in vitro kinase assays coupled to MS. Lastly, in a Drosophila tauopathy model, activating expression of a conserved TBK1 ortholog triggers tau hyperphosphorylation and enhanced neurodegeneration, whereas knockdown had the reciprocal effect, suppressing tau toxicity. Collectively, our findings suggest that increased TBK1 activation may promote tau hyperphosphorylation and neuronal loss in AD and related tauopathies.
HostingRepository	PRIDE
AnnounceDate	2023-11-14
AnnouncementXML	Submission_2023-11-14_08:52:53.322.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Eric Dammer
SpeciesList	scientific name: Homo sapiens (Human); NCBI TaxID: 9606;
ModificationList	phosphorylated residue; iodoacetamide derivatized residue
Instrument	Orbitrap Fusion

Revision	Datetime	Status	ChangeLog Entry
0	2021-04-09 05:35:17	ID requested
1	2022-03-01 03:21:57	announced
⏵ 2	2023-11-14 08:52:53	announced	2023-11-14: Updated project metadata.

Dataset with its publication pending

submitter keyword: CoIP, IKK,TBK1 MAPT Tau Phosphorylation

Nicholas T. Seyfried
contact affiliation	Emory University School of Medicine, Departments of Biochemistry and Neurology
contact email	nseyfri@emory.edu
lab head
Eric Dammer
contact affiliation	Emory University
contact email	edammer@emory.edu
dataset submitter

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PRIDE project URI

• PRIDE
  1. PXD025301
     1. Label: PRIDE project
     2. Name: TBK1 interacts with tau and enhances neurodegeneration in tauopathy