Recombinant Protein;1MG;Mouse FCGRT&B2M Heterodimer Protein, His Tag (BLI verified) (FCM-M52W8) is expressed from human 293 cells (HEK293). It contains AA Ser 22 - Ser 297 (FCGRT) & Ile 21 - Met 119 (B2M) (Accession # Q61559-1 (FCGRT) & P01887-1 (B2M)).;Mouse FCGRT&B2M Heterodimer Protein, His Tag (BLI verified), produced by co-expression of FCGRT and B2M, has a calculated MW of 32.9 kDa (FCGRT) and 11.6 kDa (B2M). Subunit FCGRT is fused with a polyhistidine tag at the C-terminus and subunit Beta-2 microglobulin (B2M) contains no tag at the C-terminus. The reducing (R) protein migrates as 40-50 kDa (FCGRT) and 13 kDa (B2M) respectively due to glycosylation.