CD47 Antibody (974222) [Unconjugated]


HEK293 human embryonic kidney cell line transfected with either (A) mouse CD47 or (B) irrelevant protein, and eGFP was stained with Rat Anti-Mouse CD47 Monoclonal Antibody (Catalog # MAB18661) followed by more
In a functional ELISA, 0.08-0.8 µg/mL of this antibody (green line) will block 50% of the binding of 0.25 µg/mL of Recombinant Mouse CD47 Fc Chimera (orange line, Catalog # 1866-CD) to immobilized Recombinant Mouse more

Product Details

Reactivity MuSpecies Glossary
Applications Flow, B/N, CyTOF-ready

CD47 Antibody (974222) [Unconjugated] Summary

Mouse myeloma cell line NS0-derived mouse CD47
Accession # NP_034711
Detects mouse CD47 in direct ELISAs.
Purity Statement
Protein A or G purified from hybridoma culture supernatant
Innovator's Reward
Test in a species/application not listed above to receive a full credit towards a future purchase.


  • Blockade of Receptor-ligand Interaction 0.08-0.8 ug/mL
  • CyTOF-ready
  • Flow Cytometry 0.25 ug/10^6 cells

Packaging, Storage & Formulations

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
Reconstitution Instructions
Reconstitute at 0.5 mg/mL in sterile PBS.


This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for CD47 Antibody (974222) [Unconjugated]

  • antigen identified by monoclonal 1D8
  • Antigenic surface determinant protein OA3
  • CD47 antigen (Rh-related antigen, integrin-associated signal transducer)
  • CD47 antigen
  • CD47 glycoprotein
  • CD47 molecule
  • CD47
  • IAP
  • IAPintegrin associated protein
  • Integrin-associated protein
  • leukocyte surface antigen CD47
  • MER6
  • MER6integrin-associated signal transducer
  • OA3
  • Protein MER6
  • Rh-related antigen


CD47, also known as Integrin‑Associated Protein (IAP) and OA3, is a 40‑60 kDa variably glycosylated atypical member of the immunoglobulin superfamily (1, 2). Mouse CD47 is an integral membrane protein that consists of a 122 amino acid (aa) extracellular domain (ECD) with a single Ig‑like domain, five membrane-spanning regions with short intervening loops, and a 16 aa C‑terminal cytoplasmic tail (3). Alternate splicing of mouse CD47 generates an additional isoform with an insertion of 21 aa following the Ig‑like domain (3). Within the N‑terminal ECD, mouse CD47 shares 63% and 84% aa sequence identity with human and rat CD47, respectively. A portion of the N‑terminal ECD can by shed from smooth muscle cells by MMP-2‑mediated proteolysis (4). The ubiquitously expressed CD47 binds to SIRP family members on macrophages, neutrophils, and T cells (5, 6). These interactions prevent macrophage‑mediated clearance of healthy CD47-expressing cells and promote immune cell transmigration across the vascular endothelium (5‑8). The CD47-SIRP alpha interaction is species specific, and this lack of cross-species interaction has been implicated in xenotransplantation rejection (16). CD47 associates in cis with Fas on T cells and enhances Fas‑mediated apoptosis; its ligation promotes T cell anergy and dampens Th1 immune responses (9‑11). CD47 also associates in cis with Integrins alpha 4 beta 1, alpha V beta 3, alpha 2b beta 3, and alpha 2 beta 1 which can positively or negatively modulate Integrin-mediated function (2, 12). In the vasculature, CD47 binding by Thrombospondin‑1 inhibits the angiogenic and vasorelaxant effects of nitric oxide (2, 13, 14). On dendritic cells and myeloma cells, CD47 ligation by TSP‑1 induces giant cell formation and osteoclast differentiation (15).
  1. Sarfati, M. et al. (2009) Curr. Drug Targ. 9:842.
  2. Isenberg, J.S. et al. (2008) Arterioscler. Thromb. Vasc. Biol. 28:615.
  3. Lindberg, F.P. et al. (1993) J. Cell Biol. 123:485.
  4. Maile, L.A. et al. (2008) Mol. Endocrinol. 22:1226.
  5. Oldenborg, P.-A. et al. (2000) Science 288:2051.
  6. Liu, Y. et al. (2002) J. Biol. Chem. 277:10028.
  7. Stefanidakis, M. et al. (2008) Blood 112:1280.
  8. de Vries, H.E. et al. (2002) J. Immunol. 168:5832.
  9. Manna, P.P. et al. (2005) J. Biol. Chem. 280:29637.
  10. Avice, M.-N. et al. (2001) J. Immunol. 167:2459.
  11. Bouguermouh, S. et al. (2008) J. Immunol. 180:8073.
  12. Barazi, H.O. et al. (2002) J. Biol. Chem. 277:42859.
  13. Isenberg, J.S. et al. (2009) Nitric Oxide 21:52.
  14. Isenberg, J.S. et al. (2009) Matrix Biol. 28:110.
  15. Kukreja, A. et al. (2009) Blood 114:3413.
  16. Wang H. et al. (2007) Blood 109:836.


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 FAB18661U
Alexa Fluor 405 FAB18661V
Alexa Fluor 488 FAB18661G
Alexa Fluor 594 FAB18661T
Alexa Fluor 647 FAB18661R
Alexa Fluor 700 FAB18661N
Alexa Fluor 750 FAB18661S

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