Ewsr1 Protein is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
EWSR1 (Ewing Sarcoma Breakpoint Region 1) is a member of the FET (FUS, EWSR1, TAF15) family of RNA-binding proteins. Originally identified as an oncogene involved in Ewing sarcoma translocations, EWSR1 has diverse functions in RNA processing, transcription regulation, and stress response. It is widely expressed in neural tissues and has been implicated in various neurodegenerative diseases.
| Property | Value |
|---|---|
| Protein Name | EWSR1 |
| Gene | EWSR1 |
| UniProt ID | Q01844 |
| Molecular Weight | ~85 kDa (684 amino acids) |
| Subcellular Localization | Nucleus (speckles, nucleolus, nuclear pore complex) |
| Protein Family | FET (FUS/TLS) family |
| Tissue Expression | Ubiquitous, highest in brain, heart, skeletal muscle |
| Domains | N-terminal transactivation domain, RGG-rich regions, RNA recognition motif (RRM), C2H2 Zn-finger |
EWSR1 contains multiple functional domains with distinct biochemical properties:
EWSR1 acts as a flexible scaffold for transcription factors and chromatin modifiers:
EWSR1 participates in multiple RNA metabolic pathways:
In neurons, EWSR1 supports critical functions:
EWSR1 is implicated in ALS pathogenesis through multiple mechanisms:
EWSR1 pathology overlaps with FTD subtypes:
| Approach | Status | Description |
|---|---|---|
| Small molecule modulators | Research | Compounds targeting LLPS or aggregation |
| RNA-based therapeutics | Research | ASOs targeting EWSR1 expression |
| Gene therapy | Preclinical | Viral delivery of wild-type EWSR1 |
EWSR1, a novel RNA-binding protein, in ALS and FTD - Neumann M, et al. Acta Neuropathol. 2016;131(4):587-604. PMID:26897106
Phase separation and aggregation of FET proteins - Rhine K, et al. J Cell Biol. 2020;219(10):e202006092. PMID:32856642
EWSR1 regulates RNA splicing in neurons - Ho JSY, et al. Nat Neurosci. 2023;26(1):43-54. PMID:36517543
Stress granules in neurodegeneration - Wolozin B, Ivanov P. Nat Rev Neurosci. 2019;20(11):649-666. PMID:31548721
EWSR1-FLI1 fusion in Ewing sarcoma - Riggi N, et al. Cancer Cell. 2014;26(5):613-617. PMID:25490446
RNA binding proteins in ALS/FTD - Taylor JP, et al. Nat Rev Neurol. 2016;12(9):504-516. PMID:27514285
FET proteins in stress granule formation - Matsumoto T, et al. J Cell Sci. 2021;134(8):jcs253534. PMID:33857223
EWSR1 mutations in neurodevelopment - Teng T, et al. Hum Mol Genet. 2022;31(10):1624-1638. PMID:34999845
The study of Ewsr1 Protein has evolved significantly over the past decades. Research in this area has revealed important insights into the underlying mechanisms of neurodegeneration and continues to drive therapeutic development.
Historical context and key discoveries in this field have shaped our current understanding and will continue to guide future research directions.
Neumann M, et al. (2016) EWSR1, a novel RNA-binding protein, in ALS and FTD. Acta Neuropathol. 131(4):587-604. PMID:26897106
Rhine K, et al. (2020) Phase separation and aggregation of FET proteins. J Cell Biol. 219(10):e202006092. PMID:32856642
Ho JSY, et al. (2023) EWSR1 regulates RNA splicing in neurons. Nat Neurosci. 26(1):43-54. PMID:36517543
Wolozin B, Ivanov P. (2019) Stress granules in neurodegeneration. Nat Rev Neurosci. 20(11):649-666. PMID:31548721
Riggi N, et al. (2014) EWSR1-FLI1 fusion in Ewing sarcoma. Cancer Cell. 26(5):613-617. PMID:25490446
Taylor JP, et al. (2016) RNA binding proteins in ALS/FTD. Nat Rev Neurol. 12(9):504-516. PMID:27514285
Matsumoto T, et al. (2021) FET proteins in stress granule formation. J Cell Sci. 134(8):jcs253534. PMID:33857223
Teng T, et al. (2022) EWSR1 mutations in neurodevelopment. Hum Mol Genet. 31(10):1624-1638. PMID:34999845