NCIt definition : A fusion protein encoded by the EML4/ALK fusion gene. This protein is comprised of
the N-terminal portion of the echinoderm microtubule-associated protein-like 4 fused
to the C-terminus of the ALK tyrosine kinase receptor protein including the entire
cytoplasmic portion with the tyrosine kinase domain.;
NCIt note : The EML4/ALK fusion protein is a constitutively dimerized and activated tyrosine kinase.;