Annotation Detail

Information
Associated Genes
ROS1
Associated Variants
ROS1 p.Gly2032Arg (p.G2032R) ( ENST00000368507.8, ENST00000368508.7 )
ROS1 p.Gly2032Arg (p.G2032R) ( ENST00000368507.8, ENST00000368508.7 )
Associated Disease
lung adenocarcinoma
Source Database
CIViC Evidence
Description
Resistance to crizotinib developed in a patient with metastatic lung adenocarcinoma harboring a CD74-ROS1 rearrangement who had initially shown a dramatic response to treatment. A biopsy of a resistant tumor showed an acquired G2032R mutation in the ROS1 kinase domain. Although this mutation does not lie at the gatekeeper residue, it confers resistance to ROS1 kinase inhibition through steric interference with drug binding. The same resistance mutation was observed at all the metastatic sites that were examined at autopsy, suggesting that this mutation was an early event in the clonal evolution of resistance.
Variant Origin
somatic
Variant Origin
Somatic
Evidence URL
https://civic.genome.wustl.edu/links/evidence_items/2934
Gene URL
https://civic.genome.wustl.edu/links/genes/4941
Variant URL
https://civic.genome.wustl.edu/links/variants/1271
Rating
1
Evidence Type
Predictive
Disease
Lung Adenocarcinoma
Evidence Direction
Supports
Drug
Crizotinib
Evidence Level
C
Clinical Significance
Resistance
Pubmed
23724914
Drugs
Drug NameSensitivitySupported
CrizotinibResitance or Non-Reponsetrue