Recombinant Human EGFR also known as ERBB, mENA, ERBB1, and HER1 with AH insertion between H773 and V774. Genbank Accession NM_005228, a.a. 695 end, with an N-terminal GST-tag, expressed in Sf9 cells via a baculovirus expression system. MW = 89 kDa.