Biotinylated Human Complement C5 Protein, His,Avitag™

Biotinylated Human Complement C5 Protein, His,Avitag™

• Background: Derived from proteolytic degradation of complement C5, C5 anaphylatoxin is a mediator of local inflammatory process. C5 precursor is first processed by the removal of 4 basic residues, forming two chains, beta and alpha, linked by a disulfide bond. C5 convertase activates C5 by cleaving the alpha chain, releasing C5a anaphylatoxin and generating C5b (beta chain + alpha' chain). Activation of C5 by a C5 convertase initiates the spontaneous assembly of the late complement components, C5-C9, into the membrane attack complex. C5b has a transient binding site for C6. The C5b-C6 complex is the foundation upon which the lytic complex is assembled. The C5a anaphylatoxin interacts with C5AR1 and tick complement inhibitor. C5a is also a potent chemokine which stimulates the locomotion of polymorphonuclear leukocytes and directs their migration toward sites of inflammation.
• Description: Biotinylated Human Complement C5, His,Avitag (CO5-H82E9) is expressed from human 293 cells (HEK293). It contains AA Gln 19 - Cys 1676 (Accession # P01031-1).
• Specifications: This protein carries a polyhistidine tag at the C-terminus, followed by an Avi tag (Avitag™). The protein has a calculated MW of 189.9 kDa. As a result of glycosylation, the protein migrates as 75 kDa, 120 kDa and 200 kDa under reducing (R) condition, and 200 kDa under non-reducing (NR) condition (SDS-PAGE).
• Expression Region: Gln 19 - Cys 1676
• Host: HEK 293
• Target: Complement C5
• Conjugation: Biotin-labeled
• Tag: C-10×His & C-Avi
• Source: Human
• Stability: -20°C to -70°C for 12 months in lyophilized state; -70°C for 3 months under sterile conditions after reconstitution._x000D_For long term storage, the product should be stored at lyophilized state at -20°C or lower.
• Endotoxin: 1.0 EU per μg
• Purity: 95%
• Bioactivity: Immobilized Biotinylated Human Complement C5, His,Avitag (Cat. No. CO5-H82E9) at 1 μg/mL (100 μL/well) on streptavidin (Cat. No. STN-N5116) precoated (0.5 μg/well) plate can bind Monoclonal Anti-Human C5a Human Antibody, Human IgG1 with a linear range of 0.1-3 ng/mL (QC tested).
• Format: Powder
• Buffer: PBS, pH7.4
• Additives: Trehalose
• Molecular Weight: 189.9 kDa
• Shipping Conditions: Room Temperature
• Storage Conditions: -20°C