Biotinylated Rabbit FCGRT&B2M Heterodimer Protein, His,Avitag&Tag Free (FCM-R82W6) is expressed from human 293 cells (HEK293). It co ntains AA Ala 24 - Val 297 (FCGRT) & Val 22 - Tyr 120 (B2M) (Accession # ABY47597.1 (FCGRT) & ALR85722.1 (B2M)). 1 * 25 µG