NCIt definition : A fusion protein encoded by the ETV6/JAK2 fusion gene. This protein is comprised of
the N-terminal half of the transcription factor ETV6 protein, including the pointed
domain and the helix-loop-helix oligomerization domain, fused to the C-terminal tyrosine
kinase domains of the tyrosine-protein kinase JAK2 protein.;
NCIt note : The helix-loop-helix domain of the transcription factor ETV6 protein may provide a
dimerization interface for kinase domain of the tyrosine-protein kinase JAK2, which
activates its tyrosine kinase activity. (Atlas of Genetics and Cytogenetics in Oncology
and Haematology);