Human EGFR with T790M mutation also known as, Epidermal Growth Factor Receptor, ERBB, ErbB-1, HER1, and MENA, GenBank Accession No. NM_005228, a.a. 668-1210 with C-terminal His-tag and N-terminal GST-tag, expressed in Sf9 cells via a baculovirus expression system. MW = 88 kDa.