ALK Antibody / Anaplastic Lymphoma Kinase

Immunohistochemistry (FFPE): 0.5-1ug/ml for 30 min at RT

The stated application concentrations are suggested starting amounts. Titration of the ALK antibody may be required due to differences in protocols and secondary/substrate sensitivity.

The wild-type anaplastic lymphoma kinase (ALK) protein is a 200kDa transmembrane receptor tyrosine kinase. Its expression is restricted to a few scattered cells in the nervous system (some glial cells and neurons, and a few endothelial cells and pericytes. The hybrid gene, NPM-ALK, created by the t(2;5)(p23;q35) chromosomal translocation encodes part of the nucleolar phosphoprotein, nucleophosmin (NPM), joined to the entire cytoplasmic portion of the anaplastic lymphoma kinase (ALK) receptor tyrosine kinase. As a consequence, the ALK gene comes under the control of the NPM promoter, which induces a permanent and ubiquitous transcription of the NPM-ALK hybrid gene, resulting in the production of a 80kDa NPM-ALK chimeric protein. This translocation is found in anaplastic large cell lymphomas (ALCL). Reportedly, expression of ALK indicates a better prognosis. Approximately 5%-10% of non-small cell lung carcinomas also express ALK protein producing a cytoplasmic staining pattern. This MAb also reacts with blood vessels that serves as an internal positive control.

Purified

1 mg/ml in 1X PBS; BSA free, sodium azide free

A portion of amino acids 200-335 from the human protein was used as the immunogen for this ALK antibody.

This ALK antibody is available for research use only.

Cytoplasmic, nuclear

Protein G affinity

Q9UM73