Annotation Detail

Information
Associated Genes
ALK
Associated Variants
ALK ALTERNATIVE TRANSCRIPT (ATI)
ALK ALTERNATIVE TRANSCRIPT (ATI)
Associated Disease
skin melanoma
Source Database
CIViC Evidence
Description
Expression of an alternative ALK transcript (ATI), encompassing exons 20–29 preceded by ~400 base pairs (bp) of intron 19, but not exons 1–19 was identified in three samples of thyroid cancer and melanoma. In TCGA samples, ALK ATI was expressed in approx. 11% of melanoma samples. Functional activity of ALK ATI was shown in-vitro. In vivo studies confirmed oncogenic activity of ALK ATI similar to other ALK mutations or fusions and sensitivity to crizotinib. A patient with metastatic melanoma and ALK ATI expression but no MET or ALK aberrations identified with FISH and a 341-gene panel sequencing was treated with crizotinib and had symptomatic improvement and tumor shrinkage within 6 weeks of therapy
Variant Origin
N/A
Variant Origin
N/A
Evidence URL
https://civic.genome.wustl.edu/links/evidence_items/1936
Gene URL
https://civic.genome.wustl.edu/links/genes/1
Variant URL
https://civic.genome.wustl.edu/links/variants/839
Rating
4
Evidence Type
Predictive
Disease
Skin Melanoma
Evidence Direction
Supports
Drug
Crizotinib
Evidence Level
C
Clinical Significance
Sensitivity/Response
Pubmed
26444240
Drugs
Drug NameSensitivitySupported
CrizotinibSensitivitytrue