
Complement Proteins
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C1 Inhibitor is a multi-specific protease inhibitor present in human plasma and serum. Among the proteins it regulates are C1s and C1r of the C1 complement...
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Purified human complement component C1q. Circulating C1q protein is a hexamer of three unique protein subunits (A,B, and C) with molecular weights of 29, 26...
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Complement protein C1r is a serine protease that combines with C1q and C1s to form C1, the first component of the classical pathway of the complement system...
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Complement protein C1s is a serine protease that combines with C1q and C1r to form C1, the first component of the classical pathway of the complement system...
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Complement protein C2, which is part of the classical pathway of the complement system, is cleaved by activated factor C1 into two fragments: C2b and C2a....
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Purified human complement component C3. The third component of complement is a centrally important constituent of both the alternative and classical...
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The complement pathway generates a C3 convertase, a serine protease that cleaves the central complement protein C3, and generates the major cleavage...
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The complement pathway generates a C3 convertase, a serine protease that cleaves the central complement protein C3, and generates the major cleavage...
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Purified human complement component C4. C4 is one of the proteins unique to the Classical Complement Pathway.
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Derived from proteolytic degradation of complement C4, C4a anaphylatoxin is a mediator of local inflammatory process.
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C4b is a cleavage product of complement protein C4, along with C4a. C4b is a non-enzymatic component of the C3 and C5 convertases and thus essential for the...
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Purified human complement component C5. Complement component C5 is unique to the terminal complement pathway.
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C5a, or C5 anaphylatoxin, is a mediator of local inflammatory process. It induces a variety of responses including intracellular calcium release,...
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Purified human complement component C6.
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Purified human complement component C7. Complement component C7 is unique to the terminal complement pathway.
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Purified human complement component C8. Complement component C8 is unique to the terminal complement pathway.
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Purified human complement component C9. Complement component C9 is unique to the terminal complement pathway.
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Purified human complement Factor B. Factor B is one of the proteins unique to the Alternative Complement Pathway.
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A centrally important reaction that occurs during alternative pathway activation is the conversion of the Factor B zymogen to an active proteolytic enzyme...
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Purified human complement Factor D. Factor D is unique to the Alternative Complement Pathway.
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Human serum immunochemically depleted of Factor D protein. Quidel's depleted sera are specifically depleted of a single complement protein. With the...
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Purified human complement Factor H. Factor H is a fluid phase complement regulatory protein.
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Purified human complement component Factor I. Factor I is a fluid phase complement regulatory enzyme.
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Purified human complement Factor P. Factor P is a tetrameric protein consisting of identical 56 kD subunits.
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iC3b is generated during the activation of the complement system via the classical or alternative pathway. When a convertase enzyme cleaves C3, C3a and C3b...
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A rabbit antiserum raised against human complement C3a protein. C3a, along with C3b, is a cleavage product of complement protein C3. C3a is a anaphylatoxin...
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A rabbit antiserum raised against human complement C4a protein. C4a is a protein fragment from the cleavage of complement protein C4, along with C4b.
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A goat antiserum raised against human Factor D protein. Factor D is unique to the Alternative Complement Pathway. It consists of a single peptide chain with...
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A goat antiserum raised against human complement Factor P protein.
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A rabbit antiserum raised against human complement SC5b-9 protein. SC5b-9 is the soluble version of the terminal complement complex (TCC). The TCC is a...
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A rabbit antiserum raised against human complement Vitronectin protein.