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Anti-Human CD71 (Transferrin Receptor) Antibody, Clone OKT9

Mouse monoclonal IgG1 antibody against human CD71 (transferrin receptor)

概要
技术资料
数据及文献

概要

The OKT9 antibody reacts with CD71 (transferrin receptor), an ~180 - 190 kDa disulfide-bonded homodimer and type 2 transmembrane glycoprotein expressed at high levels on a broad range of actively proliferating cells, as well as reticulocytes, monocytes, macrophages and marrow stromal cells. Surface levels are low on resting leukocytes but are upregulated on lymphocytes, monocytes and macrophages following antigen or mitogen stimulation. Expression is lost during differentiation of reticulocytes into mature erythrocytes. CD71 mediates uptake of transferrin–iron complexes through receptor-mediated endocytosis and recycling of the apotransferrin–receptor complex to the cell surface. CD71 has been employed as a marker for evaluating erythroid precursors and for assessing disorders such as erythroid leukemia and myelodysplastic syndrome. It has also served as a target for drug delivery. The OKT9 antibody binds an epitope that reportedly overlaps with that of antibody clone CY1G4 but is distinct from the ligand binding site for transferrin.

数据及文献

Data

Data for Unconjugated

Figure 1. Data for Unconjugated

(A) Flow cytometry analysis of CD3+ cells (T cells) isolated from human peripheral blood mononuclear cells (PBMCs), then stimulated by incubation with anti-CD3 and anti-CD28 antibodies. Cells were labeled with Anti-Human CD71 (Transferrin Receptor) Antibody, Clone OKT9, followed by a rat anti-mouse IgG1 antibody, PE (filled histogram), or a mouse IgG1, kappa isotype control antibody followed by a rat anti-mouse IgG1 antibody, PE (solid line histogram).
(B) Flow cytometry analysis of CD3+ cells isolated from human PBMCs, then stimulated by incubation with anti-CD3 and anti-CD28 antibodies. Cells were labeled with Anti-Human CD71 (Transferrin Receptor) Antibody, Clone OKT9, which had been pre-incubated for 5 min with a rat anti-mouse IgG1 antibody, PE (filled histogram), or a mouse IgG1, kappa isotype control antibody, which had been pre-incubated for 5 min with a rat anti-mouse IgG1 antibody, PE (solid line histogram). Pre-incubating the primary and secondary antibodies helped minimize background binding of the secondary antibody to the anti-CD3 and anti-CD28 antibodies used for stimulating the cells.

Data for APC-Conjugated

Figure 2. Data for APC-Conjugated

Flow cytometry analysis of CD3+ cells (T cells) isolated from human peripheral blood mononuclear cells (PBMCs), then stimulated by incubation with anti-CD3 and anti-CD28 antibodies. Cells were labeled with Anti-Human CD71 (Transferrin Receptor) Antibody, Clone OKT9, APC (filled histogram) or a mouse IgG1, kappa isotype control antibody, APC (solid line histogram).

Data for Biotin-Conjugated

Figure 3. Data for Biotin-Conjugated

Flow cytometry analysis of CD3+ cells (T cells) isolated from human peripheral blood mononuclear cells (PBMCs), then stimulated by incubation with anti-CD3 and anti-CD28 antibodies. Cells were labeled with Anti-Human CD71 (Transferrin Receptor) Antibody, Clone OKT9, Biotin followed by streptavidin (SAV) APC (filled histogram), or a biotinylated mouse IgG1, kappa isotype control antibody followed by SAV APC (solid line histogram).

Data for FITC-Conjugated

Figure 4. Data for FITC-Conjugated

Flow cytometry analysis of CD3+ cells (T cells) isolated from human peripheral blood mononuclear cells (PBMCs), then stimulated by incubation with anti-CD3 and anti-CD28 antibodies. Cells were labeled with Anti-Human CD71 (Transferrin Receptor) Antibody, Clone OKT9, FITC (filled histogram) or a mouse IgG1, kappa isotype control antibody, FITC (solid line histogram).

Data for PE-Conjugated

Figure 5. Data for PE-Conjugated

Flow cytometry analysis of CD3+ cells (T cells) isolated from human peripheral blood mononuclear cells (PBMCs), then stimulated by incubation with anti-CD3 and anti-CD28 antibodies. Cells were labeled with Anti-Human CD71 (Transferrin Receptor) Antibody, Clone OKT9, PE (filled histogram) or a mouse IgG1, kappa isotype control antibody, PE (solid line histogram).