Recombinant Human EGFR also known as ERBB, mENA, ERBB1, and HER1 with FHEA insertion between A763 and Y764. Genbank Accession NM_005228, a.a. 695-end, with an N-terminal GST-tag, expressed in Sf9 cells via a baculovirus expression system. MW = 98 kDa.