C5 recombinant protein

C5 Protein, Cynomolgus, Recombinant (His Tag)

Cat. Num. AAA8123600

• Purity: >90% as determined by SDS-PAGE
• Synonyms: C5; C5 Protein; Cynomolgus; Recombinant (His Tag); Cynomolgus C5 Protein (His Tag); complement component 5; C5 recombinant protein

• Host: HEK293 Cells
• Purity/Purification: >90% as determined by SDS-PAGE
• Form/Format: Lyophilized from sterile PBS, pH7.4. Normally 5%-8% trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hard copy of CoA.
• Sequence: Gln19-Cys1676

• Species: Cynomolgus
• Endotoxin: <1.0EU per ug protein as determined by the LAL method.
• Predicted N Terminal: Ser
• Tag: C-His
• Protein Construction: A DNA sequence encoding the cynomolgus C5 (XP_005580972.1)(Gln19-Cys1676) was expressed with a polyhistidine tag at the C-terminus.
• Reconstitution: A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
• Preparation and Storage: Samples are stable for up to twelve months from date of receipt at -20 degree C to -80 degree C. Store it under sterile conditions at -20 degree C to -80 degree C. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.; In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature. Bulk packages of recombinant proteins are provided as frozen liquid.; They are shipped out with blue ice.

SDS-Page

Related Product Information for C5 recombinant protein

Background: C5a is a protein fragment released from complement component C5. This 74 amino acid peptide in humans is generated by the cleavage of C5a convertase on the C5 alpha-chain during the classical, alternative, and lectin pathways of complement activation. The structure of C5a includes a core region consisting of four, anti-parallel alpha-helices held together by three disulfide linkages and a structured C-terminal tail, and C5a is rapidly metabolised by carboxypeptidase B to a 73 amino acid low activity form, C5a des-Arg. C5a is an extremely potent proinflammatory mediator, as well as a potent chemotactic factor for neutrophils and other leukocytes. It causes histamine release, increases in vascular permeability, induces several cytokines production from leukocytes, enhances neutrophil-endothelial cell adhesion, and augments the humoral and cell-mediated immune response. C5a is quickly metabolised by carboxypeptidases, forming the less potent C5adesArg. Acting via a classical G protein-coupled receptor, CD88, C5a and C5adesArg exert a number of effects essential to the innate immune response, while their actions at the more recently discovered non-G protein-coupled receptor, C5L2 (or GPR77), remain unclear. The widespread expression of C5a receptors throughout the body allows C5a to elicit a broad range of effects. Thus, C5a has been found to be a significant pathogenic driver in a number of immuno-inflammatory diseases, making C5a inhibition an attractive therapeutic strategy. C5a is a strong chemoattractant and is involved in the recruitment of inflammatory cells such as neutrophils, eosinophils, monocytes, and T lymphocytes, in activation of phagocytic cells and release of granule-based enzymes and generation of oxidants, all of which may contribute to innate immune functions or tissue damage. Accordingly, the anaphylatoxin C5a is implicated in a variety of diseases such as rheumatoid arthritis, systemic lupus erythematosus, reperfusion injury, Alzheimer's disease, and sepsis.

Product Categories/Family for C5 recombinant protein

Complement Activation Pathways

References

Guo RF, et al.. (2005) Role of C5a in inflammatory responses. Annu Rev Immunol. 23: 821-52.Guo RF, et al. (2006) C5a, a therapeutic target in sepsis. Recent Pat Antiinfect Drug Discov. 1(1): 57-65.Manthey HD, et al. (2009) Complement component 5a (C5a). Int J Biochem Cell Biol. 41(11): 2114-7.

NCBI and Uniprot Product Information

• Molecular Weight: The recombinant cynomolgus C5 consists of 1670 amino acids and predicts a molecular mass of 188.1kDa. It migrates as an approximately 106.3 and 75.8kDa band corresponding to the alpha chain and beta chain respectively in SDS-PAGE under reducing conditions
• Protein Family: C5a peptidase