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Author

Emily R. Theisen

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Open access Sep 2026

Fusion Oncoprotein EWSR1::FLI1 Invades Nucleosomes at Consensus ETS Motifs and GGAA Microsatellites

Ewing sarcoma is an aggressive bone malignancy occurring in children, adolescents, and young adults. Most cases are caused by expression of the fusion oncoprotein EWSR1::FLI1, which contains the low complexity domain (LCD) of EWSR1 and the DNA-binding domain (DBD) of FLI1. Previous genomic studies indicate EWSR1::FLI1...

Ruo-Wen Chen, R. Zhou, E. J. Tokarsky et al. · 0 citations
Sep 2026

Abstract B025: Multiple domains contribute to nucleosome invasion by EWSR1::FLI1

Ewing sarcoma is a rare and aggressive pediatric cancer caused by a translocation-derived fusion oncoprotein that fuses the N-terminal low complexity domain (LCD) of a FET protein (FUS, EWSR1, or TAF15) with the C-terminal portion of an ETS transcription factor from the ERG or PEA3 subfamilies. These fusion oncoprote...

Ruo-Wen Chen, R. Zhou, E. J. Tokarsky et al. · 0 citations
Sep 2026

Abstract B024: The EWSR1 low complexity domain drives cooperative DNA binding of EWSR1::FLI1 to multiple GGAA repeats

Ewing Sarcoma is defined by its hallmark mutation, a t(11;22)q24;q12) translocation which results in fusion of the EWSR1 and FLI1 genes. The fusion product, EWSR1::FLI1, contains the N-terminal low complexity domain (LCD) of EWSR1 and the DNA-binding Domain (DBD) of FLI1. EWSR1::FLI1 binds at microsatellites (µsats),...

Caleb J. Frye, R. Zhou, Lexis R. Rice et al. · 0 citations

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