Biotinylated Human ITGA7X2B&ITGB1 Heterodimer Protein, Tag Free&His,Avitag (IT1-H82W5) is expressed from human 293 cells (HEK293). It contains AA Phe 34 - Trp 1038 (ITGA7X2B) & Gln 21 - Asp 728 (ITGB1) (Accession # Q13683-7 (ITGA7X2B) & P05556-1 (ITGB1)).