NCIt definition : A fusion gene that results from a chromosomal translocation t(7;21)(p21;q22) which
fuses the 5' end of the TMPRSS2 gene with exon 4 of the ETV1 gene. This rearrangement
is associated with prostate carcinoma and androgen-dependent expression of this fusion
gene results in overexpression of ETS translocation variant 1 protein activity.;