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Key Documents

C0913

Sigma-Aldrich

Complement C2 deficient serum human

for complement assays

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About This Item

CAS Number:
MDL number:
UNSPSC Code:
12352202
NACRES:
NA.61

biological source

human

Quality Level

form

liquid

technique(s)

activity assay: suitable

UniProt accession no.

shipped in

dry ice

storage temp.

−70°C

Gene Information

human ... C2(717)

Application

C2 is a critical protease for compliment activation, which supports bacterial killing via phagocytes. C2 can be used in research to explore the mechanisms by which bacterial pathogens evade detection by the compliment system. One such mechanism by the bacteria Pseudomonas aeruginosa, uses the alkaline protease (AprA) to degrade and cleave C2 which ultimately interferes with the classical and lectin pathways. Research has shown that C2 deficiency results in an increased risk of infection by Streptococcus pyogenes through impaired phaogocytosis and neutrophil dependent killing.

Biochem/physiol Actions

Heritable complement C2 deficiency can manifest as a number of severe dermatological disorders, including discoid lupus erythematosus, idiopathic atrophoderma, and dermatomyositis.

Physical form

Supplied as a solution in PBS, pH 7.2

Analysis Note

C2 is depleted by immunoadsorption method as judged by a highly sensitive hemolytic assay and Ouchterlony immunodiffusion method.

Disclaimer

RESEARCH USE ONLY. This product is regulated in France when intended to be used for scientific purposes, including for import and export activities (Article L 1211-1 paragraph 2 of the Public Health Code). The purchaser (i.e. enduser) is required to obtain an import authorization from the France Ministry of Research referred in the Article L1245-5-1 II. of Public Health Code. By ordering this product, you are confirming that you have obtained the proper import authorization.

Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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Pseudomonas aeruginosa Alkaline Protease Blocks Complement Activation via the Classical and Lectin Pathways.
Laarman AJ., et al.
Journal of Immunology (2011)
J P Leddy et al.
The American journal of medicine, 58(1), 83-91 (1975-01-01)
A 60 year old white man in previous good health presented with a 6 month history of progressive muscle weakness. Clinical and laboratory findings were typical of dermatomyositis. Muscle biopsy confirmed the presence of inflammatory myopathy; deposits of immunoglobulin G
Miki Nakao et al.
Developmental and comparative immunology, 26(6), 533-541 (2002-05-29)
Complement factor B and C2 are two critical proteases for complement activation. Some bony fish have been reported to possess duplicated genes for B/C2, but there is no direct evidence regarding possible functional divergence. Here, we report the isolation of
Cryo-EM structures of Trypanosoma brucei gambiense ISG65 with human complement C3 and C3b and their roles in alternative pathway restriction.
S??lzen, et al.
Nature Communications, 14, 2403-2403 (2023)

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