CD163 Antibody (6D3.2F3) [FITC]


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Product Details

Reactivity Hu, PmSpecies Glossary
Applications Flow, IHC, IHC-P

Order Details

CD163 Antibody (6D3.2F3) [FITC] Summary

A synthetic peptide made to the human CD163 Antibody (6D3.2F3) protein sequence (between residues 200-400). [Swiss-Prot: Q86VB7]
Cell Membrane
Histiocytic Marker
This antibody is specific for the extracellular domain of human CD163 protein
Predicted Species
Primate (96%). Backed by our 100% Guarantee.
IgG2b Kappa
Protein G purified
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  • Flow Cytometry
  • Immunohistochemistry
  • Immunohistochemistry-Paraffin
Application Notes
Optimal dilution of this antibody should be experimentally determined.
Theoretical MW
125.5 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Reactivity Notes

Immunogen's sequence similarity with other species: Bovine (88%), Porcine (87%), Canine (87%), Rat (80%)

Packaging, Storage & Formulations

Store at 4C in the dark.
0.05% Sodium Azide
Protein G purified

Alternate Names for CD163 Antibody (6D3.2F3) [FITC]

  • CD_antigen: CD163
  • CD163 molecule
  • CD163
  • GHI/61
  • HbSR
  • Hemoglobin scavenger receptor
  • M130
  • macrophage-associated antigen
  • MM130
  • RM3/1
  • SCARI1
  • scavenger receptor cysteine-rich type 1 protein M130
  • sCD163
  • Soluble CD163


CD163 (Cluster of Differentiation 163), also known by several other names including M130, p155, RM3/1, Ki-M8, Ber-MAC3, SM4, and GHI/61, is a type I transmembrane glycoprotein that is a member of the scavenger receptor cysteine-rich (SRCR) super family class B (1-3). CD163 is expressed specifically on the monocyte/macrophage lineage and has a theoretical molecular weight of 130-160 kDa in reducing conditions and 110 kDa in non-reducing conditions (2 - 6). CD163 is synthesized as 1076 amino acid (aa) protein consisting of a large extracellular domain (ECD) with nine SRCR domains, proline-serine-threonine rich (PST) linker domain, a transmembrane segment, and a cytoplasmic tail which has varying lengths depending on the isoform due to alternative splicing, with the short 49 aa form being the most common (1-3, 6).

One of the primary functions of CD163 is uptake of haptoglobin-hemoglobin (Hp-Hb) complexes from the liver, spleen, and bone marrow, ultimately triggering an anti-inflammatory response (3, 5, 7). CD163 also functions as an erythroblast adhesion receptor and promotes cell maturation and survival (3, 5, 7). Furthermore, CD163 functions in immune sensing of bacteria and as a receptor for tumor necrosis factor (TNF)-like weak inducer of apoptosis (TWEAK) (3, 5, 7). As mentioned above, CD163 is expressed on cells in the monocyte/macrophage lineage and, in general, anti-inflammatory signals including glucocorticoids, interleukin (IL)-6, and IL-10 stimulate CD163 synthesis and expression while, conversely, pro-inflammatory signals such as interferon-gamma (INF-gamma), TNF-alpha, and lipopolysaccharide (LPS) downregulate CD163 (3, 5). In addition to membrane-bound form of CD163, the protein can be cleaved by metalloproteinases (MMP) and induced by LPS or phorbol myristate acetate (PMA) to release a soluble form (sCD163) into the plasma (7). Increased levels of sCD163 in the plasma and an increased number of CD163-expressing macrophages at the site of inflammation are associated with a variety of pathologies (3, 5-7). CD163/sCD163 is often increased and a suitable clinical marker for inflammatory diseases including rheumatoid arthritis (RA), Gaucher disease, chronic kidney disease, diabetes, and Crohn's disease (3, 5-7).

Alternative names for CD163 includes GHI/61, HbSR, Hemoglobin scavenger receptor, M130, macrophage-associated antigen, MM130, RM3/1, SCARI1, scavenger receptor cysteine-rich type 1 protein M130, sCD163, and soluble CD163.


1. Law, S. K., Micklem, K. J., Shaw, J. M., Zhang, X. P., Dong, Y., Willis, A. C., & Mason, D. Y. (1993). A new macrophage differentiation antigen which is a member of the scavenger receptor superfamily. European journal of immunology.

2. Onofre, G., Kolackova, M., Jankovicova, K., & Krejsek, J. (2009). Scavenger receptor CD163 and its biological functions. Acta medica (Hradec Kralove).

3. Van Gorp, H., Delputte, P. L., & Nauwynck, H. J. (2010). Scavenger receptor CD163, a Jack-of-all-trades and potential target for cell-directed therapy. Molecular immunology.

4. Sulahian, T. H., Hogger, P., Wahner, A. E., Wardwell, K., Goulding, N. J., Sorg, C., Droste, A., Stehling, M., Wallace, P. K., Morganelli, P. M., & Guyre, P. M. (2000). Human monocytes express CD163, which is upregulated by IL-10 and identical to p155. Cytokine.

5. Etzerodt, A., & Moestrup, S. K. (2013). CD163 and inflammation: biological, diagnostic, and therapeutic aspects. Antioxidants & redox signaling.

6. Skytthe, M. K., Graversen, J. H., & Moestrup, S. K. (2020). Targeting of CD163+ Macrophages in Inflammatory and Malignant Diseases. International journal of molecular sciences, 21(15), 5497.

7. Moller H. J. (2012). Soluble CD163. Scandinavian journal of clinical and laboratory investigation.


This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Secondary Antibodies


Isotype Controls

Other Available Formats

Alexa Fluor 350 NBP2-36495AF350
Alexa Fluor 405 NBP2-36495AF405
Alexa Fluor 488 NBP2-36495AF488
Alexa Fluor 532 NBP2-36495AF532
Alexa Fluor 594 NBP2-36495AF594
Alexa Fluor 647 NBP2-36495AF647
Alexa Fluor 700 NBP2-36495AF700
Alexa Fluor 750 NBP2-36495AF750
Allophycocyanin NBP2-36495APC
Biotin NBP2-36495B
DyLight 350 NBP2-36495UV
DyLight 405 NBP2-36495V
DyLight 488 NBP2-36495G
DyLight 550 NBP2-36495R
DyLight 594 NBP2-36495DL594
DyLight 650 NBP2-36495C
DyLight 680 NBP2-36495FR
DyLight 755 NBP2-36495IR
FITC NBP2-36495F
HRP NBP2-36495H
Janelia Fluor 549 NBP2-36495JF549
Janelia Fluor 646 NBP2-36495JF646
PE NBP2-36495PE
PerCP NBP2-36495PCP

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Gene Symbol CD163