Human CD79A&CD79B Heterodimer Protein, Mouse IgG2a Fc,Flag Tag&Mouse IgG2a Fc,His Tag (CDB-H52W3) is expressed from human 293 cells (HEK293). It contains AA Leu 33 - Arg 143 (CD79A) & Ala 29 - Asp 159 (CD79B) (Accession # P11912-1 (CD79A) & P40259-1 (CD79B)).