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Fc (IgG1) : FcRn Inhibitor Screening Chemiluminescent Assay Kit

Selected Variant

82652-2

Size: 384 Reactions

The Fc (IgG1) : FcRn Inhibitor Screening Chemiluminescent Assay Kit is designed for the screening and profiling of neutralizing antibodies or inhibitors of the interaction between human Fc (IgG1) and human FcRn (Neonatal Fc receptor for IgG) . This kit comes in a convenient 96-well or 384-well format, with purified Biotinylated-FcRn complex (Fc receptor amino acids 24-297 and B2M amino acids 21-119) and Fc (IgG1) (amino acids 100-330) proteins, Streptavidin-HRP, and assay buffers for 100 or 400 reactions.Figure 1: Illustration of the mechanism of Fc (IgG1) : FcRn Inhibitor Screening Chemiluminescent Assay Kit.A 96-well plate is coated with Fc (IgG1) protein. After blocking, the plate is pre-incubated with an inhibitor or neutralizing antibody. Upon subsequent incubation with Biotin-FcRn, the plate is treated with Streptavidin-HRP followed by addition of the ELISA ECL substrate to produce chemiluminescence that can be measured using a chemiluminescence reader. The chemiluminescence signal is proportional to the binding of FcRn to Fc (IgG1) .Need us to run inhibitor screens or profile your compounds against Fc (IgG1) : FcRn? Check out ourImmunotherapy Screening Services.

Product Specifications

Background

Neonatal Fc receptor for IgG (FcRn) is a heterodimeric protein. FcRn consists of the Fc Gamma Receptor and Transporter encoded by the FCGRT gene, associated with beta-2-Microglobulin (B2M) . FcRn binds to the Fc region of monomeric immunoglobulin G (IgG) . It is expressed in over 25 tissue types, with high expression levels observed in the spleen and intestine. In the placenta, it transports IgGs from mother to fetus. FcRn contributes to an effective humoral immunity by protecting IgGs from degradation, recycling them and extending their half-life in circulation. In addition to IgGs, it regulates the homeostasis of serum albumin. FcRn is a potential therapeutic target for autoimmune diseases.  Disrupting the FcRn/IgG interaction is expected to increase the overall clearance of IgGs, including disease-causing autoantibodies. Engineered Fc fragments or neutralizing IgGs that bind to FcRn with high affinity through their Fc region are currently undergoing clinical trial. The first FDA-approved drug targeting FcRn (efgartigimod) is now used to treat myasthenia gravis, an autoimmune neuromuscular disease caused by the presence of autoantibodies against acetylcholine receptor, providing proof-of-concept in favor of this strategy.

UniProt

P55899

Applications

Screen or titrate inhibitors ofFcRn binding to Fc (IgG1) .

Format

96 reactionsCatalog #NameAmountStorage71456IgG1, Fc (Human) *10 µg-80°C71283FcRn Complex (FCGRT/B2M), His-Avi-Tag, Biotin-Labeled*5 µg-80°C826463x Acidic FcRn Wash Buffer50 ml-20°C826095x FcRn Binding Buffer 21.5 ml-20°C78502Blocking Buffer 650 ml+4°C79742Streptavidin-HRP10 µl+4°C79670ELISA ECL Substrates A6 mlRoom TempELISA ECL Substrates B6 mlRoom Temp79699White 96-well microplate1Room Temp*The initial concentration of the proteins is lot-specific and will be indicated on the tube containing the protein.384 reactionsCatalog #NameAmountStorage71456IgG1, Fc (Human) *2 x 10 µg-80°C71283FcRn Complex (FCGRT/B2M), His-Avi-Tag, Biotin-Labeled*2 x 5 µg-80°C826463x Acidic FcRn Wash Buffer2 x 50 ml-20°C826095x FcRn Binding Buffer 22 x 1.5 ml-20°C78502Blocking Buffer 62 x 50 ml+4°C79742Streptavidin-HRP2 x 10 µl+4°C79670ELISA ECL Substrates A2 x 6 mlRoom TempELISA ECL Substrates B2 x 6 mlRoom Temp78188White 384-well microplate1Room Temp*The initial concentration of the proteins is lot-specific and will be indicated on the tube containing the protein.

Shipping Conditions

-80°C

Storage Conditions

This assay kit will perform optimally for up to 6 months from date of receipt when the materials are stored as directed.

Notes

Troubleshooting GuideVisitbpsbioscience.com/assay-kits-faqfor detailed troubleshooting instructions. For all further questions, please email[email protected].

Contraindications

The DMSO concentration in the final reaction should be ≤1%.

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