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Complement C3

Human Complement C3 (C3) is synthesized as a single-chain pro-molecule (185kDa) that then suffers several post-translational modifications. Before being secreted as a mature protein, C3 is split into b-chain (645 residues and 70kDa) and a-chain (992 residues and 115 kDa) and forms a rare internal thioester bond. C3 plays a central role in the activation of all the three pathways of complement activation i.e. the classical, alternative, and lectin pathway. As C3 is the major complement component and participates in several stages of the immune response, its deficiency generally associated with higher susceptibility to severe bacterial infections and in some cases with autoimmune diseases such as systemic lupus erythematosus.
Antibody
Anti-Complement C3 (10A1) LF-MA0131 299,000 Hu E, WB
Anti-Complement C3 (28A1) LF-MA0132 299,000 Hu E, WB
Anti-Complement factor C4 (35A12) LF-MA0187 299,000 Hu E, WB,
Anti-Complement factor C4 (49H9) LF-MA0188 299,000 Hu E, WB, IP
Anti-Complement C4 beta-chain (52H10) LF-MA0198 299,000 Hu E, WB, IP
1) Sahu, A and Lambris, J. D. (2001) Immunol Rev. 180: 35-48 2) Muller-Eberhard, H. J.(1988) Annu. Rev. Biochem. 57: 321-47