NCIt definition : A fusion protein (680 aa, 75 kDa) that is encoded by the NPM1/ALK fusion gene. This
protein contains the N-terminal domain from the nucleophosmin protein and the cytoplasmic
domain of the ALK tyrosine kinase receptor protein.;
NCIt note : The NPM1/ALK fusion protein is a constitutively dimerized and activated tyrosine kinase.;