Cat. No.
MABL-3681
Application
Functional Studies, IP, Neutralisation, WB, ELISA, FC, IF
Isotype
Engineer antibody
Species Reactivity
Rabbit, Human, Cynomolgus Monkey
Clone No.
Tabalumab
From
Recombinant Antibody
Specificity
Tabalumab neutralises soluble and membrane-bound BAFF, inhibiting BAFF binding to BR3, TACI and BCMA.
Alternative Names
TNFSF20; B-cell activating factor; Tumor Necrosis Factor Superfamily Member 13b; BAFF; Tumor Necrosis Factor (Ligand) Superfamily, Member 13b; Dendritic Cell-Derived TNF- Like Molecule; TALL-1; TALL1; ZTNF4; BLYS; Tumor Necrosis Factor (Ligand) Superfamily, Member 20; Tumor Necrosis Factor Ligand Superfamily Member 13B; TNF- And APOL-Related Leukocyte Expressed Ligand 1; TNF And ApoL-Related Leukocyte Expressed Ligand 1; Tumor Necrosis Factor-Like Protein ZTNF4; TNF Homolog That Activates Apoptosis; Tumor Necrosis Factor Ligand 7A; ApoL Related Ligand TALL-1; B- Lymphocyte Stimulator; B Lymphocyte Stimulator; CD257 Antigen; Delta4 BAFF; Delta BAFF; TNLG7A; THANK; DTL; LY 2127399; LY2127399
UniProt
Q9Y275
Immunogen
Monoclonal antibodies were generated by immunizing human immunoglobulin transgenic mice with soluble human BAFF (amino acids 133–285). Eight mice producing serum antibody titers to human BAFF were injected intravenously with 10 µg human BAFF in phosphate buffered saline. The spleen was harvested 3 days later from each mouse and fused with myeloma cells. 20 Hybridomas were tested for specific binding to human BAFF and to make sure they were expressing human immunoglobulin heavy and light chains by enzyme-linked immunosorbent assay (ELISA). The hybridoma producing the antibody that eventually became tabalumab was a human IgG1 isotype. The antibody was then engineered to a human IgG4 isotype for complete neutralization of BAFF without depletion of BAFF-expressing cells.
Application Notes
Tabalumab has been tested in patients with systemic lupus erythematosus (Merrill 2015) and in patients with active rheumatoid arthritis with an inadequate response to TNF inhibitors (Genovese 2013).
Antibody First Published
Manetta et al. Generation and characterization of tabalumab, a human monoclonal antibody that neutralizes both soluble and membrane-bound B-cell activating factor J Inflamm Res. 2014 Aug 20;7:121-31 PMID:25258549
Note on publication
Describes the role of BAFF in B-cell homeostasis and peripheral tolerance, and the potential for therapeutic intervention in the BAFF pathway to provide clincal benefit in systemic lupus erythematosus.
Size
100 μg Purified antibody.
Concentration
1 mg/ml.
Purification
Protein A affinity purified
Buffer
PBS with 0.02% Proclin 300.
Storage Recommendation
Store at 4⁰C for up to 3 months. For longer storage, aliquot and store at - 20⁰C.
