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Catalog # HM2318

C3c, Human, mAb F1-4

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Antibody F1-4 recognizes a unique epitope exclusively present on human complement C3c. The complement system mediates a number of essential biological functions that participate in host defense against infection, initiation of the inflammatory reaction, processing and clearance of immune complexes and regulation of the immune response. There are three pathways of complement activation: the classical pathway is initiated by immune complexes, the lectin pathway by surface bound mannan binding lectin and the alternative pathway by all the surfaces that are not specifically protected against it. Each of the complement pathway generates a C3 convertase, a serine protease that cleaves the central complement protein C3, and generates the major cleavage fragment C3b. C3b is an opsonin and part of one of the main convertases that drives the complement cascade. In the presence of complement regulatory molecules C3b may be further degraded sequentially to iC3b, C3c, C3dg and C3d. The disadvantage of most complement biomarkers is their short half-life, making reliable sample collection and measurements difficult. Unlike other C3 fragments, C3c does not bind to other structures, like pathogens, cell surface (receptors) and other plasma proteins. Therefore, C3c is a stable complement biomarker which will appear in the fluid phase only, without interference of other C3 based products. The measurement of C3c provides evidence of (uncontrolled) complement activation and can be used as an indicator of an inflammatory state. The complement is a key element of the innate immune system. In appropriate activation is pathologic and leads eg. To various autoimmune diseases, like HUS. There are also indications that C3 is associated with the cardiovascular system and Parkinson’s disease, making C3c a reliable and useful biomarker.
Antibody F1-4 only reacts with C3c and does not cross-react with other C3 fragments. The antibody can be used in ELISA, western blotting and immunoprecipitation.

Immuno assays, Immuno precipitation, Western blot

Application Notes
W: A non-reduced and reduced sample treatment and SDS-Page was used. The band sizes are 26 and 140 kDa (Ref.1).

For 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.

Product type
Monoclonal antibodies
100 µg, 20 µg
0.2 ml (100 µg/ml) 0.2 µm filtered antibody solution in PBS, containing 0.1% bovine serum albumin and 0.02% sodium azide.
Synthetic peptide representing the last 16 C-terminal (NKTVAVRTLDPERLGR) residues of C3c alpha domain 1 coupled onto PPD (purified protein derivate, Statens Serum Institut)
Mouse IgG1
Complement component C3, C3c
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.
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.
Infectious diseases, Nephrology
CoA-TDS HM2300-HM2400
117 kb
Safety Data Sheet

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