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Anti-C5AR1 antibody produced in rabbit

Prestige Antibodies® Powered by Atlas Antibodies, affinity isolated antibody, buffered aqueous glycerol solution

Anti-C5aR, Anti-C5a anaphylatoxin chemotactic receptor, Anti-C5a-R, Anti-CD88 antigen
Human Protein Atlas Number:

biological source




antibody form

affinity isolated antibody

antibody product type

primary antibodies



product line

Prestige Antibodies® Powered by Atlas Antibodies


buffered aqueous glycerol solution

species reactivity



antibody small pack of 25 μL


immunohistochemistry: 1:50- 1:200

immunogen sequence


UniProt accession no.

shipped in

wet ice

storage temp.


Gene Information

human ... C5AR1(728)

General description

C5AR1 (complement component 5a receptor 1) is a G-protein coupled receptor (GPCR) belonging to the rhodopsin family. It is expressed in myeloid-lineage blood cells, as well as non-myeloid cells such as epithelial cells of bronchi and alveolus, and astrocytes. Its ligand is C5a, and binds to it through two sites of ligand-binding domain. One site binds to the C-terminal of C5a and the other site is a part of the N-terminal of C5AR1. C5AR1 along with two more receptors, C3AR and C5L2, make up the anaphylatoxin (AT) receptor family of the complement system.


C5a anaphylatoxin chemotactic receptor recombinant protein epitope signature tag (PrEST)


All Prestige Antibodies Powered by Atlas Antibodies are developed and validated by the Human Protein Atlas (HPA) project and as a result, are supported by the most extensive characterization in the industry.

The Human Protein Atlas project can be subdivided into three efforts: Human Tissue Atlas, Cancer Atlas, and Human Cell Atlas. The antibodies that have been generated in support of the Tissue and Cancer Atlas projects have been tested by immunohistochemistry against hundreds of normal and disease tissues and through the recent efforts of the Human Cell Atlas project, many have been characterized by immunofluorescence to map the human proteome not only at the tissue level but now at the subcellular level. These images and the collection of this vast data set can be viewed on the Human Protein Atlas (HPA) site by clicking on the Image Gallery link. We also provide Prestige Antibodies® protocols and other useful information.

Biochem/physiol Actions

C5AR1 (complement component 5a receptor 1) binds to C5a, which results in G-protein dependant cellular activation. This includes rise in intracellular Ca2+ concentration and activation of mitogen-activated protein kinase (MAPK), PKB/Akt and phosphoinositide 3-kinase pathways. C5a is an anaphylatoxin, which has potent pro-inflammatory actions, and is involved in the pathogenesis of asthma, rheumatoid arthritis and sepsis. C5AR is involved in immunity against pathogens such as, bacteria like P. aeruginosa. It initiates their phagocytosis and degradation. It is expressed on Müller cells, which are glial cells found in eye. C5AR might be involved in the pathogenesis of retinal diseases such as, diabetic retinopathy (DR), by inducing the production of IL (interleukin)-6 and VEGF (vascular endothelial growth factor).

Features and Benefits

Prestige Antibodies® are highly characterized and extensively validated antibodies with the added benefit of all available characterization data for each target being accessible via the Human Protein Atlas portal linked just below the product name at the top of this page. The uniqueness and low cross-reactivity of the Prestige Antibodies® to other proteins are due to a thorough selection of antigen regions, affinity purification, and stringent selection. Prestige antigen controls are available for every corresponding Prestige Antibody and can be found in the linkage section.

Every Prestige Antibody is tested in the following ways:
  • IHC tissue array of 44 normal human tissues and 20 of the most common cancer type tissues.
  • Protein array of 364 human recombinant protein fragments.


Corresponding Antigen APREST72794.

Physical form

Solution in phosphate-buffered saline, pH 7.2, containing 40% glycerol and 0.02% sodium azide

Legal Information

Prestige Antibodies is a registered trademark of Sigma-Aldrich Co. LLC


Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Storage Class Code

12 - Non Combustible Liquids



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

Yves Laumonnier et al.
Current allergy and asthma reports, 11(2), 122-130 (2010-12-21)
Allergic rhinitis and asthma are common chronic inflammatory diseases of the nasal mucus membranes and the upper airways with a high prevalence in Western countries. In addition to maladaptive T-helper type 2 (Th2) immunity, Th17 cells can drive the inflammatory
Xinyue Hu et al.
Journal of nephrology, 33(5), 1027-1036 (2020-02-10)
CD4+ T cells are involved in the pathogenesis of immunoglobulin A nephropathy (IgAN); T helper (Th) 1, Th17 and Th22 cells promote the occurrence and amplification of inflammatory reactions, while regulatory T (Treg) cells produce the opposite effects. However, whether
Prostate cancer C5a receptor expression and augmentation of cancer cell proliferation, invasion, and PD-L1 expression by C5a.
Imamura, et al.
Prostate, 81, 147-156 (2021)
Jin Chen et al.
Biotechnology letters, 42(4), 557-569 (2020-02-11)
To provide an alternative therapeutic modality for rheumatoid arthritis (RA), a novel bispecific antibody (BsAb) targeting human tumor necrosis factor α (TNF-α) and human complement component C5a was constructed. BsAb was expressed in Pichia pastoris and secreted into the culture

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

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