Summary: Cat.No.: IL2RB-782H Product Overview: Recombinant Human IL2RB precursor extracellular domain (Met 1-Asp 239) (NP_000869.1), fused with the Fc region of human IgG1 at the C-terminus, was produced in Human Cell. Source: Human Cells Species: Human Tag: Fc Form: Lyophilized from sterile PBS, pH 7.4 Molecular Mass: The recombinant human IL2 Rβ/Fc is a disulfide-linked homodimeric protein generated after removal of the signal peptide. The reduced monomer consists of 451 amino acids and has a predicted molecular mass of 51.6 kDa. As a result of glycosylation, the apparent molecular mass of rh IL2RB/Fc monomer is approximately 60-65 kDa in SDS-PAGE under reducing conditions.