Cited by 310Genetic Neurodegenerative DiseasesGenetics and Neurodevelopmental DisordersBioinformatics and Genomic Networks

Network Organization of the Huntingtin Proteomic Interactome in Mammalian Brain

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Shirasaki, Dyna I., Greiner, Erin R., Al-Ramahi, Ismael, Gray, Michelle, Boontheung, Pinmanee, Geschwind, Daniel H., Botas, Juan, Coppola, Giovanni +3 more·2012·Neuron

Abstract

We used affinity-purification mass spectrometry to identify 747 candidate proteins that are complexed with Huntingtin (Htt) in distinct brain regions and ages in Huntington's disease (HD) and wild-type mouse brains. To gain a systems-level view of the Htt interactome, we applied Weighted Correlation Network Analysis to the entire proteomic data set to unveil a verifiable rank of Htt-correlated proteins and a network of Htt-interacting protein modules, with each module highlighting distinct aspects of Htt biology. Importantly, the Htt-containing module is highly enriched with proteins involved in 14-3-3 signaling, microtubule-based transport, and proteostasis. Top-ranked proteins in this module were validated as Htt interactors and genetic modifiers in an HD Drosophila model. Our study provides a compendium of spatiotemporal Htt-interacting proteins in the mammalian brain and presents an approach for analyzing proteomic interactome data sets to build in vivo protein networks in complex tissues, such as the brain.

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Crossref · 10.1016/j.neuron.2012.05.024

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  • In vivo PPI screening by large-scale co-immunoprecipitation and mass spectrometry provided tissue- and time-specific information not found by Y2H studies.

    “Interestingly, in vivo PPI screening by large-scale co-immunoprecipitation and mass spectrometry provided tissue- and time-specific information that was not found by Y2H studies167.”
  • WGCNA identified spatially and temporally specific modules associated with mutant Htt, and hub proteins with high intra-modular connectivity modulated neurodegeneration in flies.

    “WGCNA identified spatially and temporally specific modules associated with mutant Htt (which encodes huntingtin); and proteins with high intra-modular connectivity (hub proteins) modulated neurodegeneration in flies.”

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Authors
Shirasaki, D. I., Greiner, E. R., Al-Ramahi, I., Gray, M., Boontheung, P., Geschwind, D. H., Botas, J., Coppola, G., Horvath, S., Loo, J. A., & Yang, X. W.
Affiliations
  • University of California, Los Angeles (US)
  • Baylor College of Medicine (US)
Corresponding author
  • Loo, Joseph A.
  • Yang, X. William
Venue
Neuron
Publisher
Elsevier BV
Published
2012-07
Volume
75
Issue
1
Pages
41-57
ISSN
0896-6273 (ISSN-L)
OpenAlex
W2028159081
Cited by
297
References
77
Citations by year
2026: 12 · 2025: 14 · 2024: 17 · 2023: 13 · 2022: 28 · 2021: 31 · 2020: 26 · 2019: 18 · 2018: 27 · 2017: 28 · 2016: 22 · 2015: 19 · 2014: 22 · 2013: 19 · 2012: 1
FWCI
8.04
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute of Mental Health (R37MH060233)
  • National Institute on Drug Abuse (R01DA030913)
  • National Institute of General Medical Sciences (T32GM008496, R01GM103479)
  • National Institute of Neurological Disorders and Stroke (T32NS043124, R01NS049501, R01NS074312, P30NS062691)
  • National Center for Research Resources (R01RR020004, R01RR20004)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Genetic Neurodegenerative Diseases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bioinformatics and Genomic Networks
Keywords
huntingtin, protein-protein interaction network, Huntington's disease, brain regions, age-related changes, microtubule transport, proteostasis, genetic modifiers, Drosophila model, weighted gene co-expression network analysis
MeSH terms
Huntingtin Protein, Animals, Brain, Disease Models, Animal, Drosophila, Female, Humans, Mice, Transgenic, Nerve Tissue Proteins, Proteomics, Mice, Gene Regulatory Networks

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