NCIt definition : A fusion protein encoded by the EWSR1/ATF1 fusion gene. This protein is comprised
of the transactivation domain of the RNA-binding protein EWS followed by the DNA-binding
basic domain and leucine zipper dimerization domain of the cyclic AMP-dependent transcription
factor ATF-1 protein.;
NCIt note : The EWSR1/ATF1 fusion protein is a constitutive activator of transcription.;