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Gene IDH2
Variant R140W
Impact List missense
Protein Effect gain of function - predicted
Gene Variant Descriptions IDH2 R140W lies within the substrate binding region of the Idh2 protein (UniProt.org). R140W results in decreased conversion of isocitrate to alpha-ketoglutarate (alpha-KG) by Idh2, and also results in increased conversion of alpha-KG to 2HG (R(-)-2-hydroxyglutarate) in an in vitro assay (PMID: 21647154), and therefore, is predicted to lead to a gain of Idh2 protein function.
Associated Drug Resistance
Category Variants Paths

IDH2 mutant IDH2 act mut IDH2 R140W

IDH2 mutant IDH2 R140X IDH2 R140W

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Transcript NM_002168.4
gDNA chr15:g.90088703G>A
cDNA c.418C>T
Protein p.R140W
Source Database RefSeq
Genome Build GRCh38/hg38
Transcript gDNA cDNA Protein Source Database Genome Build
NM_002168 chr15:g.90088703G>A c.418C>T p.R140W RefSeq GRCh38/hg38
NM_002168.4 chr15:g.90088703G>A c.418C>T p.R140W RefSeq GRCh38/hg38
NM_002168.3 chr15:g.90088703G>A c.418C>T p.R140W RefSeq GRCh38/hg38

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  • Separate multiple filter terms with a space. Any order may be used (i. e. a b c and c b a are equivalent )
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  • Use quotes to match on a longer phrase with spaces (i.e. "mtor c1483f")

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Clinical Trial Phase Therapies Title Recruitment Status Covered Countries Other Countries
NCT03953898 Phase II Olaparib Using the Anticancer Drug Olaparib to Treat Relapsed/Refractory Acute Myeloid Leukemia or Myelodysplastic Syndrome With an Isocitrate Dehydrogenase (IDH) Mutation Active, not recruiting USA 0