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The translocation creates a fusion gene consisting of the ALK (anaplastic lymphoma kinase) gene and the nucleophosmin (NPM) gene: the 3' half of ALK, derived from chromosome 2 and coding for the catalytic domain, is fused to the 5' portion of NPM from chromosome 5. The product of the NPM-ALK fusion gene is oncogenic.
ALK, i.e. anaplastic lymphoma kinase, is a protein product of the ALK gene located on chromosome 2. In ALK-positive ALCL, a portion of the ALK gene has merged with another site on the same or different chromosome to form a chimeric gene consisting of part of the new site and part of the ALK gene coding for ALK's activity. [4] This chimeric gene ...
ALK positive lung cancer is a primary malignant lung tumor whose cells contain a characteristic abnormal configuration of DNA wherein, most frequently, the echinoderm microtubule-associated protein-like 4 gene is fused to the anaplastic lymphoma kinase (ALK) gene.
Approval required a companion molecular test for the EML4-ALK fusion. In March 2016, the FDA approved crizotinib in ROS1-positive non-small cell lung cancer. [19] In October 2012, the European Medicines Agency (EMA) approved the use of crizotinib to treat non-small cell lung cancers that express the abnormal anaplastic lymphoma kinase (ALK ...
ALK inhibitors are anti-cancer drugs that act on tumours with variations of anaplastic lymphoma kinase (ALK) such as an EML4-ALK translocation. [1] They fall under the category of tyrosine kinase inhibitors , which work by inhibiting proteins involved in the abnormal growth of tumour cells.
ALK, i.e. anaplastic lymphoma kinase (also termed protein kinase B), is produced by the ALK gene. [21] In IMT, the ALK gene has merged with a gene located at another site on the same or different chromosome to form a chimeric gene consisting of a part of the new gene and a part of the ALK gene coding for ALK's activity. [22] This chimeric gene ...
The enzyme alkaline phosphatase (ALP, alkaline phenyl phosphatase) is a phosphatase with the physiological role of dephosphorylating compounds. The enzyme is found across a multitude of organisms, prokaryotes and eukaryotes alike, with the same general function, but in different structural forms suitable to the environment they function in. Alkaline phosphatase is found in the periplasmic ...
The coding sequence for this form of alkaline phosphatase is unique in that the 3' untranslated region contains multiple copies of an Alu family repeat. In addition, this gene is polymorphic and three common alleles (type 1, type 2, and type 3) for this form of alkaline phosphatase have been well-characterized.