• Species Reactivity

  Human

• Specificity

  Detects human C1q R1/CD93 in direct ELISAs and Western blots. In direct ELISAs and Western blots, no cross‑reactivity with recombinant mouse C1q R1 is observed.

• Source

  Monoclonal Mouse IgG1 Clone # 273107

• Immunogen

  Mouse myeloma cell line NS0-derived recombinant human C1q R1/CD93    
  Ala24-Lys580    
  Accession # Q9NPY3

• Formulation

  Supplied 0.2 mg/mL in a saline solution containing BSA and Sodium Azide.

• Label

  Alexa Fluor 350

Applications

• 
  

  Recommended    
  Concentration

  Sample

• Flow Cytometry

  0.25-1 µg/10    ⁶ cells

  Human whole blood monocytes

• 
  

Please Note: Optimal dilutions should be determined by each laboratory for each application.  are available in the Technical Information section on our website.

Preparation and Storage

• Shipping

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

• Stability & Storage

  Store the unopened product at 2 - 8 °C. Do not use past expiration date.

Background: C1q R1/CD93

C1q R1 is also known as C1q Rp, Collectin Receptor, and AA4 antigen, and is designated CD93. C1q R1 mediates enhanced phagocytosis by monocytes and macrophages upon interaction with soluble defense collagens including C1q, MBL, and SP-A (1, 2). It is a type I transmembrane glycoprotein expressed on endothelial cells, hematopoietic progenitor cells, platelets, and cells of myeloid origin. C1q R1 has also been identified as a stem cell marker (3, 4).

• References:

1. Kim, T.S. et al. (2000) Mol. Immunol. 37:377.

2. Dean, Y.D. et al. (2001) Eur. J. Immunol. 31:1370.

3. Petrenko, O. et al. (1999) Immunity 10:691.

4. Danet, G.H. et al. (2002) Proc. Natl. Acad. Sci. USA 99:10441.

• Long Name:

  Complement Component C1q Receptor

• Entrez Gene IDs:

  22918 (Human); 17064 (Mouse); 84398 (Rat)

• Alternate Names:

  AA4 Antigen; C1q R1; C1q receptor 1; C1q Rp; C1q/MBL/SPA receptor; C1qR(P); C1qR1; C1qRp; CD93 antigenC1qR; CD93 molecule; CD93; CDw93C1QR1; Collectin Receptor; Complement component 1 q subcomponent receptor 1; complement component 1, q subcomponent, receptor 1; complement component C1q receptor; dJ737E23.1; ECSM3; Ly68; Matrix-remodeling-associated protein 4; matrix-remodelling associated 4; MXRA4