Integrated approach to functional analysis of an ERBB2 variant of unknown significance detected by a cancer gene panel test
[Paper-level Aggregated] PMCID: PMC8881279
Evidence Type(s): Oncogenic, Functional, Predictive
Justification: Oncogenic: The evidence indicates that the ERBB2 E401G variant enhances C-terminal phosphorylation and increases invasive capacity in cancer cells, suggesting its role in promoting oncogenic properties. Functional: The study demonstrates that ERBB2 E401G has functional properties similar to known activating mutations, affecting dimerization and phosphorylation mechanisms, which are critical for its role in signaling pathways. Predictive: The identification of the ERBB2 E401G variant as a variant of unknown significance (VUS) and its evaluation through computational tools predicting pathogenicity suggest its potential as a predictive marker for therapeutic targeting.
Gene→Variant (gene-first): MYC(4609):1157A > G FANCC(2176):E401G ERBB2(2064):D845A TP53(7157):E321G ERBB2(2064):S310F FANCC(2176):p.(E401G)
Genes: MYC(4609) FANCC(2176) ERBB2(2064) TP53(7157)
Variants: 1157A > G E401G D845A E321G S310F p.(E401G)