Annotation Detail

Information
Associated Genes
PRPS1
Associated Variants
PRPS1 D139G
PRPS1 D139G
Associated Disease
childhood B-cell acute lymphoblastic leukemia
Source Database
CIViC Evidence
Description
Lentiviral-mediated overexpression of PRPS1 D139G in Reh cells resulted in similar cytotoxic response to controls (empty vector and overexpression of known reduced-function PRPS1 mutants) after exposure to mercaptopurine or thioguanine. Based on the crystal structure of PRPS1, D139G is not in or near the allosteric site or dimer interface, which likely impedes the ability of the variant to impact thiopurine processing.
Variant Origin
somatic
Variant Origin
Somatic
Evidence URL
https://civic.genome.wustl.edu/links/evidence_items/7915
Gene URL
https://civic.genome.wustl.edu/links/genes/4566
Variant URL
https://civic.genome.wustl.edu/links/variants/2935
Rating
3
Evidence Type
Predictive
Disease
Childhood B-cell Acute Lymphoblastic Leukemia
Evidence Direction
Does Not Support
Drug
Mercaptopurine,Thioguanine
Evidence Level
D
Clinical Significance
Resistance
Pubmed
25962120
Drugs
Drug NameSensitivitySupported
MercaptopurineResitance or Non-Reponsefalse
ThioguanineResitance or Non-Reponsefalse