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CD120a Mouse anti-Human, Brilliant Violet 421, Clone: MABTNFR1-B1, BD Optibuild™

Mouse Monoclonal Antibody

Manufacturer:  BD Biosciences 743503

Catalog No. BDB743503

This item has been discontinued by the manufacturer and is no longer available. Please call customer service for assistance: 1-800-766-7000.



The TNFR1-B1 monoclonal antibody specifically recognizes the extracellular domain of CD120a. CD120a is encoded by TNFRSF1A (Tumor necrosis factor receptor superfamily member 1A). CD120a is also known as the 55 kDa receptor for the human cytokines, tumor necrosis factor (TNF) and lymphotoxin-alpha (LT-a). This receptor is referred to as the p55 or Type I Tumor Necrosis Factor Receptor (TNFRI). TNFRI are expressed by a variety of cell lines, tumor cells, and normal cell types including T cells, monocytes, macrophages, neutrophils, endothelial cells, hepatocytes, chondrocytes, and fibroblasts. Naive B cells express very low or undetectable levels of TNFRI whereas mature erythrocytes and platelets are uniformly negative for TNFRI expression. MABTNFR1-B1 specifically binds to natural and recombinant truncated forms of TNFRI.

The antibody was conjugated to BD Horizon™ BV421 which is part of the BD Horizon Brilliant™ Violet family of dyes. With an Ex Max of 407nm and Em Max at 421nm, BD Horizon BV421 can be excited by the violet laser and detected in the standard Pacific Blue™ filter set (eg, 450/50nm filter). BD Horizon BV421 conjugates are very bright, often exhibiting a 10 fold improvement in brightness compared to Pacific Blue conjugates. BV421 is a polymer-based dye excited by the violet laser and is one of the brightest fluorochromes offered by BD Biosciences. Conjugates are typically 10 times brighter than Pacific Blue™ conjugates and are often as bright as or brighter than PE conjugates. Due to nearly identical excitation and emission properties but different spillover characteristics, BD Horizon BV421, Pacific Blue™, and BD Horizon™ V450 cannot be used simultaneously.


Aqueous buffered solution containing ≤0.09% sodium azide.
TNF Receptor Type I, TNFR1, TNFR55, TNFR60, TNFRSF1A
Human CD120a Recombinant Protein
The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography. The antibody was conjugated with BD Horizon BV421 under optimal conditions that minimize unconjugated dye and antibody.
Brilliant Violet 421
Affinity Purified
Mouse BALB/c IgG2a, κ
Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze.
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