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BB515 Rat Anti-CD11b M1/70 RUO

BB515 Rat Anti-CD11b 

Clone  M1/70   (RUO)

  • Brand BD Horizon™
  • Alternative Name Itgam; Integrin alpha-M; Ly-40; Mac-1a; Mac-1 alpha; CR3A; CR-3 alpha chain
  • Concentration 0.2 mg/ml
  • Isotype Rat DA, also known as DA/HA IgG2b, κ
  • Reactivity Mouse (QC Testing)  Human (Tested in Development) 
  • Application Flow cytometry (Routinely Tested) 
  • Immunogen Mouse Splenic Cells
  • Entrez Gene ID 16409 
  • Storage Buffer Aqueous buffered solution containing ≤0.09% sodium azide.
  • Regulatory Status RUO
Product Details Recommended Assay References

Description

The M1/70 monoclonal antibody specifically binds to CD11b, also known as Integrin alpha M (Itgam or áM). CD11b is a 170-kDa type 1 transmembrane glycoprotein and belongs to the Integrin alpha chain family. CD11b serves as the alpha chain of the heterodimeric Mac-1 integrin (CD11b/CD18, áMâ2), also known as complement receptor 3 (CR3). Mac-1 mediates adhesion to ICAM-1 (CD54), ICAM-2 (CD102), fibrinogen and binding to C3bi. Mac-1 is expressed at varying levels on granulocytes, macrophages, myeloid-derived dendritic cells, natural killer cells, microglia, and B-1 B lymphocytes. Mac-1 expression is rapidly upregulated on neutrophils after activation, in the same time period that CD62L (L-selectin) is shed from the cell surface. The M1/70 antibody reportedly blocks cell adherence and C3bi binding but does not block cell-mediated lysis. Cross-reaction of the M1/70 antibody with CD11b expressed on human monocytes, polymorphonuclear leukocytes, and NK cells has been reported.

The antibody was conjugated to BD Horizon BB515 which is part of the BD Horizon Brilliant™ Blue family of dyes. With an Ex Max near 490 nm and an Em Max near 515 nm, BD Horizon BB515 can be excited by the blue laser (488 nm) laser and detected with a 530/30 nm filter. This dye has been exclusively developed by BD Biosciences and is up to seven times brighter than FITC with less spillover into the PE channel. Due to similar excitation and emission properties, BB515, FITC, and Alexa Fluor® 488 cannot be used simultaneously. It is not recommended to use BB515 in cocktails that include Streptavidin conjugates as it may cause high background.

Format
  • Format BB515
  • Excitation Source Blue 488 nm
  • Excitation Max 490 nm
  • Emission Max 515 nm

BB515 is a dye that was exclusively developed by BD Biosciences as a brighter alternative to FITC. This dye is up to seven times brighter than FITC and has less spillover into the PE channel. Due to similar excitation and emission properties, BB515, FITC, and Alexa Fluor® 488 cannot be used simultaneously.

Other Formats →

Suggested Companion Products

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

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

BB515 Rat IgG2b, κ Isotype Control RUO
0.1 mg Cat No: 564421

BB515 Rat Anti-CD11b M1/70 RUO
25 µg Cat No: 564455

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

Brilliant Stain Buffer RUO
100 Tests Cat No: 563794

Brilliant Stain Buffer RUO
1000 Tests Cat No: 566349

Brilliant Stain Buffer Plus RUO
1000 Tests Cat No: 566385

Resources & Tools
 Spectrum Viewer  Panel Designer  Spectrum Viewer  Download TDS
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™ BB515 under optimum conditions and unconjugated antibody was removed.

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. Species cross-reactivity detected in product development may not have been confirmed on every format and/or application.
  6. BD Horizon Brilliant Stain Buffer is covered by one or more of the following US patents: 8,110,673; 8,158,444; 8,575,303; 8,354,239.
  7. Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.


BD™ CompBeads can be used as surrogates to assess fluorescence spillover (Compensation). When fluorochrome conjugated antibodies are bound to CompBeads, they have spectral properties very similar to cells. However, for some fluorochromes there can be small differences in spectral emissions compared to cells, resulting in spillover values that differ when compared to biological controls. It is strongly recommended that when using a reagent for the first time, users compare the spillover on cells and CompBead to ensure that BD Comp beads are appropriate for your specific cellular application.

For optimal results, it is recommended to perform 2 washes after staining with antibodies. Cells may be prepared, stained with antibodies and washed twice with wash buffer per established protocols for immunofluorescence staining, prior to acquisition on a flow cytometer. Performing fewer than the recommended wash steps may lead to increased spread of the negative population.

For optimal and reproducible results, BD Horizon Brilliant Stain Buffer should be used anytime two or more BD Horizon Brilliant dyes are used in the same experiment. Fluorescent dye interactions may cause staining artifacts which may affect data interpretation. The BD Horizon Brilliant Stain Buffer was designed to minimize these interactions. More information can be found in the Technical Data Sheet of the BD Horizon Brilliant Stain Buffer (Cat. No. 563794/566349) or the BD Horizon Brilliant Stain Buffer Plus (Cat. No. 566385).


  1. Ault KA, Springer TA. Cross-reaction of a rat-anti-mouse phagocyte-specific monoclonal antibody (anti-Mac-1) with human monocytes and natural killer cells. J Immunol. 1981; 126(1):359-364. (Clone-specific: Flow cytometry). View reference

  2. Beller DI, Springer TA, Schreiber RD. Anti-Mac-1 selectively inhibits the mouse and human type three complement receptor. J Exp Med. 1982; 156(4):1000-1009. (Clone-specific: Flow cytometry). View reference

  3. Driver DJ, McHeyzer-Williams LJ, Cool M, Stetson DB, McHeyzer-Williams MG. Development and maintenance of a B220- memory B cell compartment. J Immunol. 2001; 167(3):1393-1405. (Clone-specific: Flow cytometry). View reference

  4. Kaji K, Takeshita S, Miyake K, Takai T, Kudo A. Functional association of CD9 with the Fc gamma receptors in macrophages. J Immunol. 2001; 166(5):3256-3265. (Clone-specific: Flow cytometry). View reference

  5. Kishimoto TK, Jutila MA, Berg EL, Butcher EC. Neutrophil Mac-1 and MEL-14 adhesion proteins inversely regulated by chemotactic factors. Science. 1989; 245(4923):1238-1241. (Biology: Flow cytometry). View reference

  6. Lagasse E, Weissman IL. Flow cytometric identification of murine neutrophils and monocytes. J Immunol Methods. 1996; 197(1-2):139-150. (Clone-specific: Flow cytometry). View reference

  7. Lub M, van Kooyk Y, Figdor CG. Competition between lymphocyte function-associated antigen 1 (CD11a/CD18) and Mac-1 (CD11b/CD18) for binding to intercellular adhesion molecule-1 (CD54). J Leukoc Biol. 1996; 59(5):648-655. (Clone-specific: Flow cytometry). View reference

  8. Sanchez-Madrid F, Simon P, Thompson S, Springer TA. Mapping of antigenic and functional epitopes on the alpha- and beta-subunits of two related mouse glycoproteins involved in cell interactions, LFA-1 and Mac-1. J Exp Med. 1983; 158(2):586-602. (Clone-specific: Flow cytometry). View reference

  9. Springer T, Galfre G, Secher D, Milstein C. Monoclonal xenogeneic antibodies to mouse leukocyte antigens: identification of macrophage-specific and other differentiation antigens. Curr Top Microbiol Immunol. 1978; 81:45-50. (Immunogen: Flow cytometry). View reference

  10. Springer T, Galfre G, Secher DS, Milstein C. Mac-1: a macrophage differentiation antigen identified by monoclonal antibody. Eur J Immunol. 1979; 9(4):301-306. (Clone-specific: Flow cytometry). View reference

  11. Springer T, Galfre G, Secher DS, Milstein C. Monoclonal xenogeneic antibodies to murine cell surface antigens: identification of novel leukocyte differentiation antigens. Eur J Immunol. 1978; 8(8):539-551. (Immunogen: Flow cytometry). View reference

  12. Springer TA, Davignon D, Ho MK, Kurzinger K, Martz E, Sanchez-Madrid F. LFA-1 and Lyt-2,3, molecules associated with T lymphocyte-mediated killing; and Mac-1, an LFA-1 homologue associated with complement receptor function. Immunol Rev. 1982; 68:171-195. (Immunogen: Flow cytometry). View reference

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