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Biotin Rat Anti-Human CCR7 (CD197)
Biotin Rat Anti-Human CCR7 (CD197)

Flow cytometric analysis of CCR7 (CD197) expression on CD4 and CD8-positive human peripheral lymphocytes. Human PBMC were stained with 20 ul/test of Biotin Rat Anti-Human CCR7 (CD197) (Cat. No. 552174) and FITC Mouse Anti-Human CD45RA (Cat. No. 555488). Secondary staining was carried out with PE Streptavidin (Cat. No. 554061). Bivariate dot plots are derived from the CD4-postive (based on staining with APC Mouse Anti-Human CD4, Cat. No. 555349, left panel) and CD8-positive (based on staining with APC Mouse Anti-Human CD8, Cat. No. 552174, right panel) lymphocyte gated populations.

Flow cytometric analysis of CCR7 (CD197) expression on CD4 and CD8-positive human peripheral lymphocytes. Human PBMC were stained with 20 ul/test of Biotin Rat Anti-Human CCR7 (CD197) (Cat. No. 552174) and FITC Mouse Anti-Human CD45RA (Cat. No. 555488). Secondary staining was carried out with PE Streptavidin (Cat. No. 554061). Bivariate dot plots are derived from the CD4-postive (based on staining with APC Mouse Anti-Human CD4, Cat. No. 555349, left panel) and CD8-positive (based on staining with APC Mouse Anti-Human CD8, Cat. No. 552174, right panel) lymphocyte gated populations.

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BD Pharmingen™
CCR7, BLR-2, EBI-1, CMKBR7
Human (QC Testing)
Rat IgG2a, κ
Human CCR7 protein
Flow cytometry (Routinely Tested)
20 µl
1236
AB_394352
Aqueous buffered solution containing BSA and ≤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 biotin under optimum conditions, and unreacted biotin was removed.

Recommended Assay Procedures

The biotinylated 3D12 antibody can be used with a very bright second-step reagent, such as Streptavidin-phycoerythrin (Cat. No. 554061) for the immunofluorescent staining and flow cytometric analyses of human leukocytes and cell lines that express CCR7 (see Figure). We are unable to generate reproducible results using less bright reagent such as Streptavidin-FITC or -PerCP with this antibody. The use of Streptavidin-FITC or -PerCP is not recommended.

Recommendation: Chemokine receptors are know to internalize during manipulation resulting in low frequency expression. Immunophenotyping studies of chemokine receptors need to be performed on freshly collected whole blood (<24 Hrs). Incubation with the antibody should be done in the dark. Cellular manipulation, such as Ficoll separation, freezing, or exposure to cold temperatures prior to staining have been shown to cause a decrease in staining intensity and inconsistent results.

A multiple-step staining procedure is strongly recommended to amplify immunofluorescent signals in the flow cytometric analysis of human CCR7 expression. Purified Rat Anti-Human CD197 (CCR7) (Cat. No. 552175) and a 3-step staining procedure is recommended for detecting low frequency expression.

Product Notices

  1. This reagent has been pre-diluted for use at the recommended Volume per Test. We typically use 1 × 10^6 cells in a 100-µl experimental sample (a test).
  2. An isotype control should be used at the same concentration as the antibody of interest.
  3. Source of all serum proteins is from USDA inspected abattoirs located in the United States.
  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. Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.
552174 Rev. 2
Antibody Details
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3D12

The monoclonal antibody 3D12 reacts with the human CC chemokine receptor, CCR7. CCR7 (previously known as BLR-2, EBI-1 and CMKBR7), a seven-transmembrane, G-protein-coupled receptor, is the specific receptor for CC chemokines, MIP-3β/Exodus 3/ELC/ CCL19 and 6Ckine/Exodus 2/SLC/TCA4/CCL21. It has been shown that CCR7 mRNA is expressed mainly in lymphoid tissues including spleen, lymph nodes and tonsil. CCR7 mRNA was also detected in peripheral T and B lymphocytes, in bone marrow and cord blood CD34-positive cells and mature dendritic cells. The human CCR7 gene, unlike other CC chemokine receptor genes, has been mapped to chromosome 17q12. The immunogen used to generate 3D12 hybridoma was the N-terminus as well as parts of the second extracellular loop of human CCR7 protein. The monoclonal antibody 3D12 recognizes an epitope mapping to the N-terminus of human CCR7.

552174 Rev. 2
Format Details
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Biotin
Biotin is a ubiquitous co-factor (also known as Vitamin B7) that has many properties that make it extremely useful for molecular biology. Biotin has an extremely high affinity for the Avidin family of proteins (Kd = 10-15 M), making it the perfect tool to link two molecules. Biotin labeled antibodies can be combined with any number of Avidin-conjugated probes in order to customize an assay to a particular need. This is especially useful in the case of magnetic cell separation using streptavidin/magnetic bead conjugates, or in the case of flow cytometry using streptavidin/fluorophore conjugates.
Biotin
552174 Rev.2
Citations & References
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Development References (15)

  1. Birkenbach M, Josefsen K, Yalamanchili R, Lenoir G, Kieff E. Epstein-Barr virus-induced genes: first lymphocyte-specific G protein-coupled peptide receptors. Nature. 1993; 67(4):2209-2220. (Biology). View Reference
  2. Britschgi MR, Link A, Lissandrin TK, Luther SA. Dynamic modulation of CCR7 expression and function on naive T lymphocytes in vivo. J Immunol. 2008; 181(11):7681-7688. (Biology). View Reference
  3. Burgstahler R, Kempkes B, Steube K, Lipp M. Expression of the chemokine receptor BLR2/EBI1 is specifically transactivated by Epstein-Barr virus nuclear antigen 2. Biochem Biophys Res Commun. 1995; 215(2):737-743. (Biology). View Reference
  4. Forster R, Davalos-Misslitz AC, Rot A. CCR7 and its ligands: balancing immunity and tolerance. Nat Rev Immunol. 2008; 8(5):362-371. (Biology). View Reference
  5. Kim CH, Pelus LM, White JR, Broxmeyer HE. Macrophage-inflammatory protein-3 beta/EBI1-ligand chemokine/CK beta-11, a CC chemokine, is a chemoattractant with a specificity for macrophage progenitors among myeloid progenitor cells. J Immunol. 1998; 161(5):2580-2585. (Biology). View Reference
  6. Kurobe, H., Liu, et al. CCR7-dependent cortex-to-medulla migration of positively selected thymocytes is essential for establishing central tolerance. Immunity. 2006; 24(2):165-177. (Biology). View Reference
  7. Lipp M, Burgstahler R, Muller G, et al. Functional organization of secondary lymphoid organs by the chemokine system. Curr Top Microbiol Immunol. 2000; 251:173-179. (Immunogen). View Reference
  8. Ohl L, Mohaupt M, Czeloth N, et al. CCR7 governs skin dendritic cell migration under inflammatory and steady-state conditions. Immunity. 2004; 21(2):279-288. (Biology). View Reference
  9. Ritter U, Wiede F, Mielenz D, Kiafard Z, Zwirner J, Korner H. Analysis of the CCR7 expression on murine bone marrow-derived and spleen dendritic cells.. J Leukoc Biol. 2004; 76(2):472-476. (Biology). View Reference
  10. Sallusto F, Lenig D, Forster R, Lipp M, Lanzavecchia A. Two subsets of memory T lymphocytes with distinct homing potentials and effector functions. Nature. 1999; 401(6754):708-712. (Clone-specific). View Reference
  11. Schweickart VL, Raport CJ, Godiska R, et al. Cloning of human and mouse EBI1, a lymphoid-specific G-protein-coupled receptor encoded on human chromosome 17q12-q21.2. Genomics. 1994; 23(3):643-650. (Biology). View Reference
  12. Yanagihara S, Komura E, Nagafune J, Watarai H, Yamaguchi Y. EBI1/CCR7 is a new member of dendritic cell chemokine receptor that is up-regulated upon maturation. J Immunol. 1998; 161(6):3096-3102. (Biology). View Reference
  13. Yoshida R, Imai T, Hieshima K, et al. Molecular cloning of a novel human CC chemokine EBI1-ligand chemokine that is a specific functional ligand for EBI1, CCR7. J Biol Chem. 1997; 272(21):13803-13809. (Biology). View Reference
  14. Yoshida R, Nagira M, Imai T, et al. EBI1-ligand chemokine (ELC) attracts a broad spectrum of lymphocytes: activated T cells strongly up-regulate CCR7 and efficiently migrate toward ELC. Int Immunol. 1998; 10(7):901-910. (Biology). View Reference
  15. Yoshida R, Nagira M, Kitaura M, Imagawa N, Imai T, Yoshie O. Secondary lymphoid-tissue chemokine is a functional ligand for the CC chemokine receptor CCR7. J Biol Chem. 1998; 273(12):7118-7122. (Biology). View Reference
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552174 Rev. 2

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