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Catalog # HM2280

DAF, Human, mAb 1C6

125.00430.00

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The monoclonal antibody 1C6 recognizes human complement decay-accelerating factor (DAF), also designated as CD55. Cells express on their surface several proteins which protect against complement attack, namely complement receptor I (CR1), decay-accelerating factor (DAF), membrane cofactor protein (MCP) and CD59. CR1, DAF and MCP regulate the activation pathways of complement by either accelerating decay of the C3 and C5 convertase (CR1, DAF), or acting as cofactors for the serine protease factor I, which cleaves and irreversibly inactivates C3b (CR1, MCP).
Human DAF (CD55) is a protein of 381 amino acids resulting in a ~ 60 kDa transmembrane protein that binds C3b and C4b to inhibit formation and half-life of the C3 convertases. It belongs to the receptors of complement activation (RCA) family. DAF is broadly distributed among cells in contact with plasma complment proteins, including both haematopoietic and non-haematopoietic cells. Although DAF does not have an essential role in controling hemolysis of erythrocytes, it has an important role in regulation of the deposition of C3 on nucleated cells.
Together with other complement regulators DAF protects self cells from autologous complement-mediated injury. DAF cooperates with CD46 in circumventing autologous C3 deposition, while CD59 inhibits the pathway at the critical end-point. DAF is overexpressed in certain tumors thereby limiting the complement-dependent cytotoxiticy of therapeutic anticancer antibodies. Using DAF blocking antibodies targeted specifically at cancer cells in combination with immunotherapeutic monoclonal antibodies of cancer may improve the therapeutic effect in cancer patients.

Application
Flow cytometry, Functional studies, Immuno assays, Western blot

Use
For flow cytometry and Western blotting, dilutions to be used depend on detection system applied. It is recommended that users test the reagent and determine their own optimal dilutions. The typical starting working dilution is 1:50. For functional studies, in vitro dilutions have to be optimized in user's experimental setting..

Product type
Monoclonal antibodies
Amount
100 µg, 20 µg
Formulation
0.2 ml (100 µg/ml) 0.2 µm filtered antibody solution in PBS, containing 0.1% bovine serum albumin.
Immunogen
Purified DAF from pooled human erythrocyte stroma
Isotype
Mouse IgG1
Species
Human
Alias
CD55
Storage and stability
Product should be stored at 4 °C. Under recommended storage conditions, product is stable for at least one year. The exact expiry date is indicated on the label.-
Precautions
For research use only. Not for use in or on humans or animals or for diagnostics. It is the responsibility of the user to comply with all local/state and federal rules in the use of this product. Hycult Biotech is not responsible for any patent infringements that might result from the use or derivation of this product.
Disease
Autoimmunity, Infectious diseases

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