anti-Complement C4 β-chain, mAb (52H10)

CHF 315.00
In stock
YIF-LF-MA0198100 µlCHF 315.00
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Product Details
Synonyms CO4; C4B; Complement C4 β Chain
Product Type Monoclonal Antibody
Clone 52H10
Isotype Mouse IgG1 κ
Immunogen/Antigen Protein purified from human plasma.

Western Blot (1:2,000)
Immunoprecipitation (1 μl)

Crossreactivity Human
Purity Detail Ammonium sulfate precipitation.
Formulation Liquid. HEPES with 0.15M NaCl, 0.01% BSA, 0.03% sodium azide, and 50% glycerol.
Isotype Negative Control

Mouse IgG1 Isotype Control

Other Product Data

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Our product description may differ slightly from the original manufacturers product datasheet.

Declaration Manufactured by AbFrontier
Shipping and Handling
Shipping BLUE ICE
Short Term Storage +4°C
Long Term Storage -20°C
Use/Stability Stable for at least 1 year after receipt when stored at -20°C.
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Product Specification Sheet
Datasheet Download PDF

The complement system is a part of the larger immune system and three biochemical pathways are present: the classical complement pathway, the alternative pathway, and the mannose-binding lectin pathway. Complement component C4 is an essential component of humoral immune response. In its activated form, C4b becomes a subunit of the C3 convertase, which is an enzymatic complex that activates C3 of the classical and lectin complement activation pathways. The classical pathway is initiated by the activation of the C1-complex (C1q, C1r and C1s) by C1q's binding to antibody-antigen. The C1-complex now binds to and splits C2 and C4 producing C2a and C4b. C4b and C2a bind to form C3-convertase. Production of C3-convertase leads to cleavage of C3 into C3a and C3b and C3b joins with the C3 convertase to make C5 convertase. Human C4 is the most polymorphic protein of the complement system. Complement C4 exists as two isotypes, C4A (acidic) and C4B (basic). Although the sequence identity is very high, they have different hemolytic activities, covalent affinities to antigens and immune complexes, and serological reactivities. Each C4 contains β chain, α chain, C4a anaphyltoxin, C4b, and γ chain. C4-deficient mice shows incomplete clearance of microbial attack and C4-deficiency in human shows increased autoimmune diseases. C4 plays a central role in the activation of the classical pathway of the complement system. It is processed by activated C1 which removes from the α chain the C4a anaphylatoxin. The remaining α chain fragment C4b is the major activation product and is an essential subunit of the C3 convertase (C4b2a) and the C5 convertase (C3bC4b2a) enzymes of the classical complement pathway. Derived from proteolytic degradation of complement C4, C4a anaphylatoxin is a mediator of local inflammatory process. It induces the contraction of smooth muscle, increases vascular permeability and causes histamine release from mast cells and basophilic leukocytes.

Product References

1) Blanchong C.A. et al., (2001) Int Immunopharmacol. 1:365-392. (General)
2) Holers V.M., (2000) Immunopharmacol. 49:125-131. (General)

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