Recombinant Human CD3E&CD3D Heterodimer Protein is produced by HEK293 cells expression system. The target protein is expressed with sequence (Asp23-Glu120 (CD3E)&Phe22-Ala105 (CD3D)) of human CD3E&CD3D Heterodimer (Accession P07766(CD3E)&P04234(CD3D)) f