Heat-mediated antigen retrieval is recommended prior to staining, using a 10mM citrate buffer, pH 6.0, for 10 minutes followed by cooling at room temperature for 20 min. Following antigen retrieval, incubate samples with primary antibody for 30 min at room temperature. A suggested positive control is anaplastic lymphoma.
The 2;5 chromosomal translocation is frequently associated with anaplastic large cell lymphomas. The translocation creates a fusion gene consisting of the ALK gene and the nucleophosmin gene: the 3' half of ALK, derived from chromosome 2, is fused to the 5' portion of NPM from chromosome 5. A recent study shows that the product of the NPM-ALK fusion gene is oncogenic. The deduced amino acid sequences reveal that ALK is a novel receptor protein-tyrosine kinase having a putative transmembrane domain and an extracellular domain. These sequences are absent in the product of the transforming NPM-ALK gene. ALK shows the greatest sequence similarity to LTK. ALK plays an important role in the development of the brain and exerts its effects on specific neurons in the nervous system.
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Protein Aliases: ALK tyrosine kinase receptor; Anaplastic lymphoma kinase; CD246; CD246 antigen; EC 22.214.171.124; kinase ALK; mutant anaplastic lymphoma kinase; npm-alk; TFG/ALK
Gene Aliases: ALK; CD246; NBLST3
UniProt ID: (Human) Q9UM73
Entrez Gene ID: (Human) 238
Molecular Function: transmembrane signal receptor