ERRFI1（ERBB receptor feedback inhibitor 1），癌症关联基因，基因ID：54206，errfi1是一种胞质蛋白，其表达随细胞生长而上调（Wick等人，1995[PubMed 7641805]）。与大鼠基因-33的蛋白质产物具有显著的同源性，该基因在细胞应激期间被诱导并介导细胞信号传导（Makkinje等人，2000[PubMed 10749885]；Fiorentino等人，2000[PubMed 11003669]）。ERRFI1 is a cytoplasmic protein whose expression is upregulated with cell growth (Wick et al.， 1995 [PubMed 7641805]). It shares significant homology with the protein product of rat gene-33， which is induced during cell stress and mediates cell signaling (Makkinje et al.， 2000 [PubMed 10749885]; Fiorentino et al.， 2000 [PubMed 11003669]).关联癌症：胆管癌，非小细胞肺癌。关联化疗药物：EGFR Inhibitor，厄洛替尼。