Gene Variant Detail

Gene ERBB2
Variant T798M
Impact List missense
Protein Effect gain of function
Gene Variant Descriptions ERBB2 (HER2) T798M lies within the gatekeeper position in the ATP binding site of the Erbb2 (HER2) protein. T798M results in activation of the Erbb2 (Her2) protein in cell culture experiments (PMID: 22046346, PMID: 23948973) and demonstrates the ability to increase cell proliferation and cell viability in culture (PMID: 29533785).
Associated Drug Resistance

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Transcript NM_004448
gDNA chr17:g.39724811_39724812delCAinsTG
cDNA c.2393_2394delCAinsTG
Protein p.T798M
Source Database RefSeq
Genome Build GRCh38/hg38
Transcript gDNA cDNA Protein Source Database Genome Build
NM_004448 chr17:g.39724811_39724812delCAinsTG c.2393_2394delCAinsTG p.T798M RefSeq GRCh38/hg38
NM_001289937 chr17:g.39724811_39724812delCAinsTG c.2393_2394delCAinsTG p.T798M RefSeq GRCh38/hg38

Filtering

  • Case insensitive filtering will display rows where any text in any cell matches the filter term
  • Simple literal full or partial string matches
  • Separate multiple filter terms with a spaces, order doesn't matter (a b c and c b a are equivalent )
  • Filtering will only apply to rows that are already loaded on the page, filtering has no impact on query parameters
  • Use quotes to match a longer phrase which contains spaces "mtor c1483f"

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Molecular Profile Protein Effect Treatment Approaches
ERBB2 amp ERBB2 T798M
ERBB2 T798M gain of function HER inhibitor (Pan) HER2 Inhibitor
Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References
ERBB2 amp ERBB2 T798M breast cancer resistant Trastuzumab Preclinical - Cell line xenograft Actionable In a preclinical study, a human ERBB2-amplified breast cancer cell line expressing ERBB2 (HER2) T798M was resistant to Herceptin (trastuzumab) in culture and in xenograft models (PMID: 23948973). 23948973
ERBB2 T798M Advanced Solid Tumor sensitive EKI-285 Preclinical Actionable In a preclinical study, EKI-285 (CL-387785) inhibited proliferation of transformed cell lines expressing ERBB2 (HER2) T798M in culture (PMID: 22046346). 22046346
ERBB2 T798M Advanced Solid Tumor sensitive WZ4002 Preclinical Actionable In a preclinical study, WZ4002 inhibited proliferation of transformed cell lines expressing ERBB2 (HER2) T798M in culture (PMID: 22046346). 22046346
ERBB2 T798M breast cancer sensitive Afatinib Preclinical Actionable In a preclinical study, breast cancer cells expressing ERBB2(HER2) T798M were sensitive to Gilotrif (afatinib) (PMID: 23948973). 23948973
ERBB2 T798M breast cancer sensitive Cetuximab + Lapatinib Preclinical - Cell line xenograft Actionable In preclinical studies, the combination of Erbitux (cetuximab) and Tykerb (lapatinib) inhibited cell growth of a human breast cancer cell line harboring ERBB2 T798M and synergized to inhibit tumor growth in xenograft models (PMID: 23948973). 23948973
ERBB2 T798M breast cancer sensitive Buparlisib Preclinical Actionable In a preclinical study, human breast cancer cells expressing the ERBB2 (HER2) T798M mutation demonstrated sensitivity to BKM120 (PMID: 23948973). 23948973
ERBB2 T798M breast cancer resistant CI-1040 Preclinical Actionable In a preclinical study, breast cancer cells expressing ERBB2 T798M demonstrated resistance to CI-1040 (PMID: 23948973). 23948973
ERBB2 T798M breast cancer sensitive Trastuzumab + XL147 Preclinical Actionable In a preclinical study, breast cancer cells expressing ERBB2 (HER2) T798M were sensitive to the combination of Herceptin (trastuzumab) and XL147 (PMID: 23948973). 23948973
ERBB2 T798M breast cancer sensitive XL147 Preclinical Actionable In a preclinical study, breast cancer cell lines expressing ERBB2 (HER2) T798M demonstrated sensitivity to XL147 (SAR245408) in cell culture (PMID: 23948973). 23948973
ERBB2 T798M Advanced Solid Tumor resistant AEE788 Preclinical Actionable In a preclinical study, transformed cell lines expressing ERBB2 (HER2) T798M demonstrated resistance when treated with AEE788 in culture (PMID: 22046346). 22046346
ERBB2 T798M breast cancer sensitive Lapatinib + Trastuzumab Preclinical - Cell line xenograft Actionable In a preclinical study, human breast cancer cell lines and cell line xenografts expressing ERBB2 T798M demonstrated sensitivity to the combination of Herceptin (trastuzumab) and Tykerb (lapatinib) (PMID: 23948973). 23948973
ERBB2 T798M breast cancer resistant Cetuximab Preclinical Actionable In a preclinical study, breast cancer cells expressing the ERBB2 (HER2) T798M mutant were resistant to Erbitux (cetuximab)(PMID: 23948973). 23948973
ERBB2 T798M Advanced Solid Tumor resistant Lapatinib Preclinical Actionable In a preclinical study, transformed cell lines expressing ERBB2 (HER2) T798M demonstrated resistance when treated with Tykerb (lapatinib) in culture (PMID: 22046346). 22046346
ERBB2 T798M Her2-receptor positive breast cancer resistant Lapatinib Preclinical Actionable In a preclinical study, ERBB2 (HER2)-receptor positive breast cancer cells expressing ERBB2 (HER2) T798M were resistant to Tykerb (lapatinib) in both culture and xenograft models (PMID: 23948973). 23948973