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A fusion gene that results from a chromosomal translocation t(7;19)(q22;q13) which fuses non-coding exon 1 of the SERPINE1 gene with exon 1 or 2 of the FOSB gene. This rearrangement is associated with pseudomyogenic hemangioendothelioma and expression of this fusion gene results in overexpression of protein FosB.
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