Human CD3E & CD3D Heterodimer protein is expressed from human 293 cells (HEK293).It contains AA Asp 23 - Asp 126 (CD3E) & Phe 22 - Ala 105 (CD3D) (Accession # P07766-1(CD3E) & P04234-1(CD3D)).
SARS-CoV-2 Spike Trimer (D614G) protein is expressed from human 293 cells (HEK293). It contains AA Val 16 - Pro 1213(Accession # QHD43416.1 (D614G, R683A, R685A)).