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Mouse Complement C3a ELISA Kit (Colorimetric)

Catalog # NBP2-70037 | Novus Biologicals a Bio-Techne Brand
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Key Product Details

Sample Type & Volume Required Per Well

Serum, plasma and other biological fluids (100 uL)


0.10 ng/mL

Assay Range

0.16 - 10 ng/mL

Product Specifications

Assay Type


Kit Type

ELISA Kit (Colorimetric)




Mouse Complement C3a ELISA Kit (Colorimetric) recognizes Mouse C3a in samples. No significant cross-reactivity or interference between Mouse C3a and analogues was observed.


Intra-Assay Precision (Precision within an assay) %CV < 5.38

Inter-Assay Precision (Precision between assays) %CV < 5.21

Recovery for Mouse Complement C3a ELISA Kit (Colorimetric)


91 - 109%


Mouse Complement C3a ELISA Kit (Colorimetric)

Scientific Data Images for Mouse Complement C3a ELISA Kit (Colorimetric)

Mouse Complement C3a ELISA Kit (Colorimetric) - Standard Curve Reference

Kit Contents for Mouse Complement C3a ELISA Kit (Colorimetric)

  • Biotinylated Detection Ab Diluent
  • Certificate of Analysis
  • Concentrated Biotinylated Detection Ab (100×)
  • Concentrated HRP Conjugate (100×)
  • Concentrated Wash Buffer (25×)
  • HRP Conjugate Diluent
  • Micro ELISA Plate(Dismountable)
  • Plate Sealer
  • Product Description
  • Reference Standard
  • Reference Standard & Sample Diluent
  • Stop Solution
  • Substrate Reagent

Preparation and Storage


The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Storage of components varies. See protocol for specific instructions.

Background: Complement C3a

The complement system, or complement cascade, is a part of the innate immune system that assists in defense against pathogens (1). Complement C3, also called C3 or C3 protein, is one of nine complement proteins and is the main component of the complement system which is composed of over 30 soluble and membrane-bound proteins (1). C3 is cleaved by C3 convertase into two fragments, the smaller C3a and larger C3b (1,2). Human C3a is 77 amino acids (aa) in length and has a theoretical molecular weight of ~9 kDa (2). Structurally, complement C3a consists of four anti-parallel helical structures with three disulfide bridges (2). The C3a fragment binds the G-protein coupled receptor (GPCR) C3a (C3aR) (2,3). Functionally, C3a plays an important role in regulating both adaptive immunity and innate immunity (1-3).

The C3a/C3aR pathway is often referred to as a "double-edged sword" because it has both anti-inflammatory and pro-inflammatory functions (2,3). For instance, its anti-inflammatory role includes pathogen elimination and reduced interferon-gamma (IFN-gamma) expression and cytotoxicity in natural killer cells (2). By contrast, complement C3a is an anaphylatoxin and plays a role in inflammation by prompting histamine release from mast cells and increasing permeability of the vascular system (2-4). The C3a/C3aR pathway has also been indicated in a number of diseases including Alzheimer's disease, asthma, and kidney disease (3). Patients with various kidney diseases tend to show higher levels of complement C3a in the plasma and urine (3).


1. Mathern, D. R., & Heeger, P. S. (2015). Molecules Great and Small: The Complement System. Clinical Journal of the American Society of Nephrology: CJASN.

2. Gao, S., Cui, Z., & Zhao, M. H. (2020). The Complement C3a and C3a Receptor Pathway in Kidney Diseases. Frontiers in Immunology.

3. Ricklin, D., Reis, E. S., Mastellos, D. C., Gros, P., & Lambris, J. D. (2016). Complement component C3 - The "Swiss Army Knife" of innate immunity and host defense. Immunological Reviews.

4. Haddad, A., & Wilson, A. M. (2020). Biochemistry, Complement. In StatPearls. StatPearls Publishing.

Alternate Names

Acylation Stimulating Protein, acylation-stimulating protein cleavage product, AHUS5, ARMD9, ASP, C3, C3 and PZP-like alpha-2-macroglobulin domain-containing protein 1, C3a, C3a anaphylatoxin, C3adesArg, C3b, C3bc, C3-beta-c, complement C3, Complement C3 alpha chain, Complement C3 beta chain, Complement C3b alpha' chain, Complement C3c alpha' chain fragment 1, Complement C3c alpha' chain fragment 2, Complement C3d fragment, Complement C3dg fragment, Complement C3f fragment, Complement C3g fragment, complement component 3, complement component C3, complement component C3a, complement component C3b, CPAMD1, EC, epididymis secretory sperm binding protein Li 62p, HEL-S-62p, prepro-C3

Gene Symbol


Product Documents for Mouse Complement C3a ELISA Kit (Colorimetric)

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Product Specific Notices for Mouse Complement C3a ELISA Kit (Colorimetric)

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

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