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FITC Mouse Anti-Human CD93
FITC Mouse Anti-Human CD93

Expression of CD93 by unstimulated human peripheral blood mononuclear cells (PBMC). Human PBMC were stained with FITC Mouse Anti-Human CD93 (Cat. No. 551531, shaded histogram) or  FITC Mouse IgG2b, κ Isotype Control (Cat. No. 555057, open histogram). The flourescence histograsm depicting CD93 (or Ig isotype staining) were derived from gated events with the forward and side-light scatter characteristics of viable PBMCs.  

FITC Mouse Anti-Human CD93

To deomonstrate specificity of staining, monocyte staining by FITC Mouse Anti-Human CD93 (thick line histogram) was blocked by co-incubation with an excess of Purified Mouse Anti-Human CD93 (5 µg/10e6, Cat. No. 551087, filled histogram). Autofluorescence is also shown (open histogram).

Expression of CD93 by unstimulated human peripheral blood mononuclear cells (PBMC). Human PBMC were stained with FITC Mouse Anti-Human CD93 (Cat. No. 551531, shaded histogram) or  FITC Mouse IgG2b, κ Isotype Control (Cat. No. 555057, open histogram). The flourescence histograsm depicting CD93 (or Ig isotype staining) were derived from gated events with the forward and side-light scatter characteristics of viable PBMCs.  

To deomonstrate specificity of staining, monocyte staining by FITC Mouse Anti-Human CD93 (thick line histogram) was blocked by co-incubation with an excess of Purified Mouse Anti-Human CD93 (5 µg/10e6, Cat. No. 551087, filled histogram). Autofluorescence is also shown (open histogram).

Product Details
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BD Pharmingen™
C1QR1; C1qRP; C1qR(P); C1q/MBL/SPA Receptor; MXRA4; GR11; Dj737e23.1
Human (QC Testing)
Mouse BALB/c IgG2b, κ
Clq-CLF-binding proteins
Flow cytometry (Routinely Tested)
0.5 mg/ml
22918
AB_394233
Aqueous buffered solution containing ≤0.09% sodium azide.
RUO


Preparation And Storage

Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze. The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography. The antibody was conjugated with FITC under optimum conditions, and unreacted FITC was removed.

Recommended Assay Procedures

Immunofluorescent Staining and Flow Cytometric Analysis: The staining technique and blocking controls are described in detail by C. Prussin and D. Metcalfe. Asuitable mouse IgG2b isotype control for assessing the level of background staining on human cells is recommended: use at comparable concentrations to antibody of interest (e.g., ≤ 0.125 µg Ab/1 million cells).

Product Notices

  1. Since applications vary, each investigator should titrate the reagent to obtain optimal results.
  2. An isotype control should be used at the same concentration as the antibody of interest.
  3. Caution: Sodium azide yields highly toxic hydrazoic acid under acidic conditions. Dilute azide compounds in running water before discarding to avoid accumulation of potentially explosive deposits in plumbing.
  4. For fluorochrome spectra and suitable instrument settings, please refer to our Multicolor Flow Cytometry web page at www.bdbiosciences.com/colors.
  5. Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.
551531 Rev. 2
Antibody Details
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R139

The R139 monoclonal antibody specifically binds to CD93 which is also known as Complement component C1q receptor (C1qR), C1q receptor 1 (C1qR1), or Matrix-remodeling-associated protein 4 (MXRA4). The immunogen used to generate the R139 hybridoma was a preparation of CD93 protein. Human CD93 is a transmembrane glycoprotein that is highly expressed on monocytes, macrophages, granulocytes, and endothelial cells but not on T and B lymphocytes. CD93 is also known as the C1q/MBL/SPA Receptor as it binds C1q, the recognition subunit of the first component (C1) of the complement pathway, as well as MBL (Mannose-binding-lectin) and SPA (Pulmonary Surfactant Protein A). Human C1qRp is involved in the C1q-mediated enhancement of phagocytosis. R139 is suitable to detect CD93 expression on cells of myeloid lineage by flow cytometry, and CD93 in cellular lysates by Western blotting or immunoprecipitation. In addition, R139 reportedly neutralizes C1q-mediated enhancement of phagocytosis. CD93 has also been reported to define a human stem cell population with hematopoietic and hepatic potential.

551531 Rev. 2
Format Details
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FITC
Fluorescein (FITC) is part of the BD blue family of dyes. This is a small organic fluorochrome with an excitation maximum (Ex Max) at 494-nm and an emission maximum (Em Max) at 518-nm. FITC is designed to be excited by the Blue laser (488-nm) and detected using an optical filter centered near 520 nm (e.g., a 530/30-nm bandpass filter). Please ensure that your instrument’s configurations (lasers and optical filters) are appropriate for this dye.
altImg
FITC
Blue 488 nm
494 nm
518 nm
551531 Rev.2
Citations & References
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Development References (8)

  1. Danet GH, Luongo JL, Butler G, et al. C1qRp defines a new human stem cell population with hematopoietic and hepatic potential.. Proc Natl Acad Sci USA. 2002; 99(16):10441-5. (Biology). View Reference
  2. Guan E, Robinson SL, Goodman EB, Tenner AJ. Cell-surface protein identified on phagocytic cells modulates the C1q-mediated enhancement of phagocytosis. J Immunol. 1994; 152(8):4005-4016. (Biology). View Reference
  3. Guan EN, Burgess WH, Robinson SL, Goodman EB, McTigue KJ, Tenner AJ. Phagocytic cell molecules that bind the collagen-like region of C1q. Involvement in the C1q-mediated enhancement of phagocytosis. J Biol Chem. 1991; 266(30):20345-20355. (Biology). View Reference
  4. Nepomuceno RR, Henschen-Edman AH, Burgess WH, Tenner AJ. cDNA cloning and primary structure analysis of C1qR(P), the human C1q/MBL/SPA receptor that mediates enhanced phagocytosis in vitro. Immunity. 1997; 6(2):119-129. (Biology). View Reference
  5. Nepomuceno RR, Ruiz S, Park M, Tenner AJ. C1qRP is a heavily O-glycosylated cell surface protein involved in the regulation of phagocytic activity. J Immunol. 1999; 162(6):3583-3589. (Biology). View Reference
  6. Nepomuceno RR, Tenner AJ. C1qRP, the C1q receptor that enhances phagocytosis, is detected specifically in human cells of myeloid lineage, endothelial cells, and platelets. J Immunol. 1998; 160(4):1929-1935. (Biology). View Reference
  7. Prussin C, Metcalfe DD. Detection of intracytoplasmic cytokine using flow cytometry and directly conjugated anti-cytokine antibodies. J Immunol Methods. 1995; 188(1):117-128. (Methodology). View Reference
  8. Tenner AJ. C1q receptors: regulating specific functions of phagocytic cells. Immunobiology. 1998; 199(2):250-264. (Biology). View Reference
View All (8) View Less
551531 Rev. 2

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Global - Refer to manufacturer's instructions for use and related User Manuals and Technical data sheets before using this products as described


Comparisons, where applicable, are made against older BD Technology, manual methods or are general performance claims.  Comparisons are not made against non-BD technologies, unless otherwise noted.

For Research Use Only. Not for use in diagnostic or therapeutic procedures.