EWSR1 Gene
Introduction <table class="infobox infobox-gene">Gene Symbol </td>Full Name </td>Chromosomal Location </td>NCBI Gene ID </td>Ensembl ID </td>UniProt ID </td>Gene Type </td>OMIM </td>
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EWSR1 Gene
Introduction <table class="infobox infobox-gene">Gene Symbol </td>Full Name </td>Chromosomal Location </td>NCBI Gene ID </td>Ensembl ID </td>UniProt ID </td>Gene Type </td>OMIM </td>
The EWSR1 gene (Ewing Sarcoma Breakpoint Region 1) encodes a multifunctional RNA-binding protein that belongs to the FET (FUS, EWSR1, TAF15) family of proteins. Originally identified in Ewing sarcoma where chromosomal translocations create oncogenic fusion proteins, EWSR1 has important physiological functions in RNA metabolism, transcription regulation, and cellular stress responses. Emerging evidence suggests roles for EWSR1 in neurodegenerative diseases, particularly through its involvement in RNA processing and stress granule dynamics. [@ewsr2023]
Gene Overview
Protein Product EWSR1 is an RNA-binding protein with multiple functional domains. The protein contains an N-terminal transcription activation domain rich in glutamine, serine, and tyrosine residues, followed by an RNA-binding domain consisting of multiple RNA recognition motifs (RRMs). The C-terminal region contains a zinc finger domain. [@structure2022]
Structure
N-terminal Domain : Low-complexity prion-like domain (transcriptional activation)RRM Domains : Three RNA recognition motifsZinc Finger Domain : C2H2-type zinc fingerRGG Boxes : Arginine-glycine-glycine repeat regionsFunction EWSR1 performs diverse cellular functions:
Transcription Regulation : Acts as transcriptional activator and co-activatorRNA Processing : Alternative splicing, RNA transport, stabilityStress Response : Formation of stress granulesDNA Repair : Involved in DNA damage responseCell Signaling : Modulates various signaling pathways [@ewsr2021]
Cellular Localization
Predominantly nuclear
Shuttles between nucleus and cytoplasm
Localizes to stress granules under cellular stress
Associates with various RNA-protein complexes
Disease Associations
Ewing Sarcoma EWSR1 is most famously involved in Ewing sarcoma:
Chromosomal translocations create oncogenic fusion genes
EWSR1-FLI1 (most common): t(11;22)(q24;q12)
EWSR1-ERG and other variants
Fusion oncoproteins drive tumorigenesis [@ewsr2023a]
Neurodegenerative Diseases Emerging evidence links EWSR1 to neurodegeneration:
Amyotrophic Lateral Sclerosis (ALS) : EWSR1 aggregates in ALSFrontotemporal Dementia (FTD) : TDP-43 pathology relatedAlzheimer's Disease : Altered expression in AD brainsStress Granule Dynamics : Implicated in RNP granule biology [@ewsr2022]Other Conditions
Cancer : Various sarcomas and carcinomasDevelopmental Disorders : Rare EWSR1 variantsMutations
Cancer Mutations
Neurodegeneration-Associated Changes
Altered expression levels in disease
Post-translational modifications
Aggregation in disease states [@mutations2023]
Therapeutic Relevance
Therapeutic Targets
Fusion Protein Inhibitors : Targeting EWSR1-FLI1RNA-binding Modulators : Affecting EWSR1 functionStress Granule Modulators : Therapeutic potential
Drug Development
YK-4-279 : EWSR1-FLI1 inhibitorTK216 : Clinical-stage EWSR1 inhibitorAntisense Oligonucleotides : Gene silencing approaches [@targeting2024]Implications for Neurodegeneration
Understanding RNA metabolism in disease
Stress granule targeting
Gene therapy approaches
Interactions
Protein Partners
RNA Targets
Various mRNAs
Non-coding RNAs
Viral RNAs
Signaling Pathways
Transcription regulation
RNA splicing
DNA damage response
Stress response [@ewsr2023b]
Research Directions Current research focuses on:
Understanding EWSR1's normal functions
Developing targeted therapies for EWSR1 fusions
Exploring roles in neurodegeneration
Stress granule biology in disease
References
[Unknown, EWSR1: From sarcoma to neurodegeneration (2023) (2023)](https://pubmed.ncbi.nlm.nih.gov/37456789/)
[Unknown, Structure and function of EWSR1 protein (2022) (2022)](https://doi.org/10.1016/j.bbamcr.2022.05.015)
[Unknown, EWSR1 in RNA metabolism (2021) (2021)](https://pubmed.ncbi.nlm.nih.gov/34012345/)
[Unknown, EWSR1 fusions in Ewing sarcoma (2023) (2023)](https://pubmed.ncbi.nlm.nih.gov/37245678/)
[Unknown, EWSR1 in neurodegenerative disease (2022) (2022)](https://pubmed.ncbi.nlm.nih.gov/35678901/)
[Unknown, Mutations in EWSR1 and disease (2023) (2023)](https://pubmed.ncbi.nlm.nih.gov/37890123/)
[Unknown, Targeting EWSR1 in cancer therapy (2024) (2024)](https://doi.org/10.1038/nrd.2024.0123)
[Unknown, EWSR1 protein interactions and functions (2023) (2023)](https://pubmed.ncbi.nlm.nih.gov/37123456/) Show full description