Complement C5 Overexpression Lysate

HEK293T cells in 10-cm dishes were transiently transfected with a non-lipid polymer transfection reagent specially designed and manufactured for large volume DNA transfection. Transfected cells were cultured for 48hrs before collection. The cells were lysed in modified RIPA buffer (25mM Tris-HCl pH7.6, 150mM NaCl, 1% NP-40, 1mM EDTA, 1xProteinase inhibitor cocktail mix, 1mM PMSF and 1mM Na3VO4, and then centrifuged to clarify the lysate. Protein concentration was measured by BCA protein assay kit.

C5 is synthesised in the liver as a single polypeptide chain. Before secretion the molecule is glycosylated and secreted into plasma as a 190kDa glycoprotein consisting of a disulphide linked alpha-chain (115kDa) and beta-chain (75kDa). C5 occurs in plasma at about 75mg/L. It is activated via either the classical or the alternative complement pathway, by protoelytic cleavage of C5a (11.5kDa) from the N-terminal of the alpha-chain. C5a is a potent anaphylotoxin and stimulates directed migration of neutrophils, eosinophils, basophils and monocytes. The other fragment, C5b,initiates the assembly of the membrane attack complex that mediates the cytolysis of viral and bacterial pathogens.

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Lysates are guaranteed for 6 months from date of receipt.

Array NBP2-10765

• Complement C5 Antibodies
• Complement C5 ELISA Kits
• Complement C5 Lysate
• Complement C5 Proteins