Proteomics

Dataset Information

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ITRAQ Analysis of DJ-1 Knockout Rodent Brains


ABSTRACT: Mutations in the DJ-1 (Park7) gene cause autosomal recessive Parkinson's disease in humans, but the function of the DJ-1 protein is poorly characterized. In an effort to understand more about the biology of DJ-1, we performed iTRAQ analyses on subcellular fractions enriched from DJ-1 knockout rat and mouse brains. We generated iTRAQ datasets for mitochondria and cytosol enriched fractions from 6-month-old rat brains, and the cytosol enriched fraction from 14-15-month old mouse brains. Our subsequent analyses of these datasets led to our discovery that the Hexokinase 1 protein was increased in the cytosol components of both DJ-1 knockout species.

INSTRUMENT(S): LTQ Orbitrap Elite

ORGANISM(S): Rattus Norvegicus (rat) Mus Musculus (mouse)

TISSUE(S): Brain

SUBMITTER: Jinhui Ding  

LAB HEAD: Mark R Cookson

PROVIDER: PXD005215 | Pride | 2017-10-04

REPOSITORIES: Pride

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Publications


<h4>Background</h4>Early onset Parkinson's disease is caused by variants in PINK1, parkin, and DJ-1. PINK1 and parkin operate in pathways that preserve mitochondrial integrity, but the function of DJ-1 and how it relates to PINK1 and parkin is poorly understood.<h4>Methods</h4>A series of unbiased high-content screens were used to analyze changes at the protein, RNA, and metabolite level in rodent brains lacking DJ-1. Results were validated using targeted approaches, and cellular assays were per  ...[more]

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