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APC-R700 Rat Anti-Mouse CD19 1D3 RUO

APC-R700 Rat Anti-Mouse CD19 

Clone  1D3   (RUO)

  • Brand BD Horizon™
  • Alternative Name Cd19; CD19 antigen; B-lymphocyte antigen CD19
  • Concentration 0.2 mg/ml
  • Isotype Rat LEW, also known as Lewis IgG2a, κ
  • Reactivity Mouse (QC Testing) 
  • Application Flow cytometry (Routinely Tested) 
  • Immunogen Mouse CD19 Transfected Cell Line
  • Entrez Gene ID 12478 
  • Storage Buffer Aqueous buffered solution containing protein stabilizer and ≤0.09% sodium azide.
  • Regulatory Status RUO
Product Details Recommended Assay References

Description

The 1D3 antibody reacts with CD19, a B lymphocyte-lineage differentiation antigen. CD19, a 95-kDa transmembrance glycoprotein, is a member of the immunoglobulin superfamily and is expressed throughout B-lymphocyte development from the pro-B cell through the mature B-cell stages. Terminally differentiated plasma cells do not express CD19. On the surface of mature B cells, the CD19 molecule associates with CD21 (CR-2) and CD81 (TAPA-1), and this multimolecular complex synergizes with surface immunoglobulin to promote cellular activation. Studies with CD19-deficient mice have suggested that the level of CD19 expression affects the generation and maturation of B cells in the bone marrow and periphery. B-1 lineage B cells, also known as CD5+ B cells, are drastically reduced or absent in CD19-deficient mice. Increased levels of CD19 expression correlate with increased frequencies of peritonal and splenic B-1 cells and reduced numbers of conventional B lymphocytes in the periphery. CD19 participates in B-lymphocyte development, B-cell activation, maturation of memory B cells and regulation of tolerance. CD19 has also been detected on peritoneal mast cells, co-localized with CD21/CD35, and it is proposed to play a role in complement-mediated mast-cell activation.

This antibody was conjugated to BD Horizon APC-R700, which has been developed exclusively by BD Biosciences as a better alternative to Alexa Fluor® 700. APC-R700 excites and emits at similar wavelengths to Alexa Fluor® 700 yet exhibits significantly improved brightness. This dye can be excited by the red laser and detected with the same filter set as Alexa Fluor® (eg, 730/45-nm filter).

Format
  • Format APC-R700
  • Excitation Source Red 633 nm
  • Excitation Max 652 nm
  • Emission Max 704 nm

APC-R700 is a tandem fluorochrome that combines APC with R700, a proprietary organic dye. This dye has been developed exclusively by BD Biosciences as a brighter alternative to Alexa Fluor® 700. Due to similar excitation and emission properties, APC-R700 and Alexa Fluor® 700 cannot be used simultaneously.

Other Formats →

Suggested Companion Products

Stain Buffer (FBS) RUO
500 mL Cat No: 554656

Stain Buffer (BSA) RUO
500 mL Cat No: 554657

Purified Rat Anti-Mouse CD16/CD32 (Mouse BD Fc Block™) 2.4G2 RUO
0.1 mg Cat No: 553141

Purified Rat Anti-Mouse CD16/CD32 (Mouse BD Fc Block™) 2.4G2 RUO
0.5 mg Cat No: 553142

PE Hamster Anti-Mouse CD3e 145-2C11 RUO
0.2 mg Cat No: 553064

PE Hamster Anti-Mouse CD3e 145-2C11 RUO
0.1 mg Cat No: 553063

PE Hamster Anti-Mouse CD3e 145-2C11 RUO
25 mg Cat No: 561824

Lysing Buffer RUO
100 mL Cat No: 555899

Resources & Tools
 Spectrum Viewer  Panel Designer  Spectrum Viewer  Download TDS  Regulatory Document Website
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 BD Horizon APC-R700 under optimum conditions, and unconjugated antibody and free BD Horizon APC-R700 were removed.

Product Notices

  1. Since applications vary, each investigator should titrate the reagent to obtain optimal results.
  2. Please refer to www.bdbiosciences.com/pharmingen/protocols for technical protocols.
  3. Alexa Fluor® is a registered trademark of Molecular Probes, Inc., Eugene, OR.
  4. 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.
  5. For fluorochrome spectra and suitable instrument settings, please refer to our Multicolor Flow Cytometry web page at www.bdbiosciences.com/colors.
  6. An isotype control should be used at the same concentration as the antibody of interest.


  1. Engel P, Zhou LJ, Ord DC, Sato S, Koller B, Tedder TF. Abnormal B lymphocyte development, activation, and differentiation in mice that lack or overexpress the CD19 signal transduction molecule. Immunity. 1995; 3(1):39-50. View reference

  2. Fearon DT. The CD19-CR2-TAPA-1 complex, CD45 and signaling by the antigen receptor of B lymphocytes. Curr Opin Immunol. 1993; 5(3):341-348. View reference

  3. Gommerman JL, Oh DY, Zhou X, et al. A role for CD21/CD35 and CD19 in responses to acute septic peritonitis: a potential mechanism for mast cell activation. J Immunol. 2000; 165(12):6915-6921. View reference

  4. Inaoki M, Sato S, Weintraub BC, Goodnow CC, Tedder TF. CD19-regulated signaling thresholds control peripheral tolerance and autoantibody production in B lymphocytes. J Exp Med. 1997; 186(11):1923-1931. View reference

  5. Krop I, de Fougerolles AR, Hardy RR, Allison M, Schlissel MS, Fearon DT. Self-renewal of B-1 lymphocytes is dependent on CD19. Eur J Immunol. 1996; 26(1):238-242. View reference

  6. Krop I, Shaffer AL, Fearon DT, Schlissel MS. The signaling activity of murine CD19 is regulated during cell development. J Immunol. 1996; 157(1):48-56. View reference

  7. Rickert RC, Rajewsky K, Roes J. Impairment of T-cell-dependent B-cell responses and B-1 cell development in CD19-deficient mice. Nature. 1995; 376(6538):352-355. View reference

  8. Sato S, Jansen PJ, Tedder TF. CD19 and CD22 expression reciprocally regulates tyrosine phosphorylation of Vav protein during B lymphocyte signaling. Proc Natl Acad Sci U S A. 1997; 94(24):13158-13162. View reference

  9. Sato S, Miller AS, Howard MC, Tedder TF. Regulation of B lymphocyte development and activation by the CD19/CD21/CD81/Leu 13 complex requires the cytoplasmic domain of CD19. J Immunol. 1997; 159(7):3278-3287. View reference

  10. Sato S, Ono N, Steeber DA, Pisetsky DS, Tedder TF. CD19 regulates B lymphocyte signaling thresholds critical for the development of B-1 lineage cells and autoimmunity. J Immunol. 1996; 157(10):4371-4378. View reference

  11. Sato S, Steeber DA,Jansen PJ, Tedder TF. CD19 expression levels regulate B lymphocyte development: human CD19 restores normal function in mice lacking endogenous CD19. J Immunol. 1997; 158(10):4662-4669. View reference

  12. Tedder TF, Zhou LJ, Engel P. The CD19/CD21 signal transduction complex of B lymphocytes. Immunol Today. 1994; 15(9):437-442. View reference

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