The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
Huntingtin-associated protein 1 (HAP1) interacts with the p150Glued subunit of dynactin
Abstract
Huntington's disease (HD) is an inherited neurodegenerative disease caused by expansion of a polyglutamine repeat in the HD protein huntingtin. Huntingtin's localization within the cell includes an association with cytoskeletal elements and vesicles. We previously identified a protein (HAP1) which binds to huntingtin in a glutamine repeat length-dependent manner. We now report that HAP1 interacts with cytoskeletal proteins, namely the p150 Glued subunit of dynactin and the pericentriolar protein PCM-1. Structural predictions indicate that both HAP1 and the interacting proteins have a high probability of forming coiled coils. We examined the interaction of HAP1 with p150 Glued . Binding of HAP1 to p150 Glued (amino acids 879-1150) was confirmed in vitro by binding of p150 Glued to a HAP1-GST fusion protein immobilized on glutathione-Sepharose beads. Also, HAP1 co-immunoprecipitated with p150 Glued from brain extracts, indicating that the interaction occurs in vivo . Like HAP1, p150 Glued is highly expressed in neurons in brain and both proteins are enriched in a nerve terminal vesicle-rich fraction. Double label immunofluorescence experiments in NGF-treated PC12 cells using confocal microscopy revealed that HAP1 and p150 Glued partially co-localize. These results suggest that HAP1 might function as an adaptor protein using coiled coils to mediate interactions among cytoskeletal, vesicular and motor proteins. Thus, HAP1 and huntingtin may play a role in vesicle trafficking within the cell and disruption of this function could contribute to the neuronal dysfunction and death seen in HD.
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Cites
MACDONALD, M. (1993) · Cell · doi:10.1016/0092-8674(93)90585-e · Cited by 8,366
Trinucleotide repeat length instability and age of onset in Huntington's disease
Duyao, M., Ambrose, C., Myers, R., Novelletto, A., Persichetti, F., Frontali, M., Folstein, S., Ross, C., Franz, M., Abbott, M., et al. (1993) · Nature Genetics · doi:10.1038/ng0893-387 · Cited by 1,089
Huntingtin is a cytoplasmic protein associated with vesicles in human and rat brain neurons
DiFiglia, M., Sapp, E., Chase, K., Schwarz, C., Meloni, A., Young, C., Martin, E., Vonsattel, J.-P., Carraway, R., Reeves, S. A., et al. (1995) · Neuron · doi:10.1016/0896-6273(95)90346-1 · Cited by 749 · cited 1×
“This fits with previous hypotheses that one of the normal functions of the huntingtin protein may be in vesicle trafficking within cells (7,8,10).”
Cited by
Trinucleotide Repeat Disorders
Orr, H. T., & Zoghbi, H. Y. (2007) · Annual Review of Neuroscience · doi:10.1146/annurev.neuro.29.051605.113042 · Cited by 1,368
Gauthier, L. R., Charrin, B. C., Borrell-Pagès, M., Dompierre, J. P., Rangone, H., Cordelières, F. P., De Mey, J., MacDonald, M. E., Leßmann, V., Humbert, S., et al. (2004) · Cell · doi:10.1016/j.cell.2004.06.018 · Cited by 1,178
Hirokawa, N., Niwa, S., & Tanaka, Y. (2010) · Neuron · doi:10.1016/j.neuron.2010.09.039 · Cited by 1,138
Axonal transport deficits and neurodegenerative diseases
Millecamps, S., & Julien, J.-P. (2013) · Nature Reviews Neuroscience · doi:10.1038/nrn3380 · Cited by 755
The cytoplasmic dynein transport machinery and its many cargoes
Reck-Peterson, S. L., Redwine, W. B., Vale, R. D., & Carter, A. P. (2018) · Nature Reviews Molecular Cell Biology · doi:10.1038/s41580-018-0004-3 · Cited by 659
Metadata
- Authors
- Engelender, S.
- Venue
- Human Molecular Genetics
- Publisher
- Oxford University Press (OUP)
- Published
- 1997-12-01
- Volume
- 6
- Issue
- 13
- Pages
- 2205-2212
- ISSN
- 0964-6906 (ISSN-L)
- 1460-2083
- OpenAlex
- W2159269805
- Cited by
- 341
- References
- 3
- FWCI
- 4.81
- Type
- journal article
- Language
- en
- Open access
- closed
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- Engelender, S. (1997). Huntingtin-associated protein 1 (HAP1) interacts with the p150Glued subunit of dynactin. Human Molecular Genetics. https://doi.org/10.1093/hmg/6.13.2205
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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