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Anti-Human CD20 Antibody, Clone 2H7

Mouse monoclonal IgG2b antibody against human, rhesus, cynomolgus CD20

概要
技术资料
数据及文献

概要

Antibody 2H7 reacts with CD20, an ~35 kDa non-glycosylated type 1 transmembrane protein in the MS4A protein family. The CD20 polypeptide transverses the cell membrane four times, with only a minor portion of the protein displayed on the cell surface. The epitope recognized by antibody 2H7 has been mapped to the amino acid sequence YNCEPANPSEKNSPST, located in the large extracellular loop of CD20. CD20 is expressed on pre-B cells, resting and activated B cells, some follicular dendritic cells, and a subset of T cells. Expression by B cells is lost upon their differentiation into plasma cells. By associating with several proteins, including the B cell receptor (CD79), MHC class I and II, CD53, CD81, and CD82, CD20 is involved in initiating intracellular signaling pathways that modulate the activation, proliferation, and differentiation of B cells. It is thought that CD20 forms multi-subunit ion channels that regulate calcium ion flux across the plasma membrane. Activation of CD20 is accompanied by pronounced phosphorylation of the cytoplasmic domain of the ~33 kDa apo-protein, with the appearance of 35 - 37 kDa isoforms that associate with Src family kinases such as Fyn, Lck and Lyn.

This antibody clone has been verified for purity assessments of cells isolated with EasySep™ kits, including EasySep™ Human Whole Blood CD20 Positive Selection Kit (Catalog #18685), EasySep™ Human CD19 Positive Selection Kit II (Catalog #17854), and EasySep™ HLA Whole Blood Lymphoid Positive Selection Kit (Catalog #18684HLA).

数据及文献

Data

Data for Alexa Fluor® 488-Conjugated

Figure 1. Data for Alexa Fluor® 488-Conjugated

(A) Flow cytometry analysis of human peripheral blood mononuclear cells (PBMCs) labeled with Anti-Human CD20 Antibody, Clone 2H7, Alexa Fluor® 488 and anti-human CD45 APC.
(B) Flow cytometry analysis of human PBMCs processed with the EasySep™ Human CD19 Positive Selection Kit and labeled with Anti-Human CD20 Antibody, Clone 2H7, Alexa Fluor® 488. Histograms show labeling of the PBMCs (Start) and isolated cells (Isolated). Labeling of start cells with a mouse IgG2b, kappa Alexa Fluor® 488 isotype control antibody is shown in the bottom panel (open histogram).

Data for APC-Conjugated

Figure 2. Data for APC-Conjugated

(A) Flow cytometry analysis of human buffy coat cells labeled with Anti-Human CD20 Antibody, Clone 2H7, APC (filled histogram) or a mouse IgG2b, kappa APC isotype control antibody (black line histogram).
(B) Flow cytometry analysis of human peripheral blood mononuclear cells (PBMCs) processed with the EasySep™ Human CD19 Positive Selection Kit and labeled with Anti-Human CD20 Antibody, Clone 2H7, APC. Histograms show labeling of PBMCs (Start) and isolated cells (Isolated). Labeling of start cells with a mouse IgG2b, kappa APC isotype control antibody is shown (open histogram).

Data for FITC-Conjugated

Figure 3. Data for FITC-Conjugated

(A) Flow cytometry analysis of human peripheral blood mononuclear cells (PBMCs) labeled with Anti-Human CD20 Antibody, Clone 2H7, FITC (filled histogram) or a mouse IgG2b, kappa FITC isotype control antibody (black line histogram).
(B) Flow cytometry analysis of human PBMCs processed with the EasySep™ Human CD19 Positive Selection Kit and labeled with Anti-Human CD20 Antibody, Clone 2H7, FITC. Histograms show labeling of PBMCs (Start) and isolated cells (Isolated). Labeling of start cells with a mouse IgG2b, kappa FITC isotype control antibody is shown (open histogram).

Data for PE-Conjugated

Figure 4. Data for PE-Conjugated

(A) Flow cytometry analysis of human peripheral blood mononuclear cells (PBMCs) labeled with Anti-Human CD20 Antibody, Clone 2H7, PE and antihuman CD45 APC.
(B) Flow cytometry analysis of human PBMCs processed with the EasySep™ Human CD19 Positive Selection Kit and labeled with Anti-Human CD20 Antibody, Clone 2H7, PE. Histograms show labeling of the PBMCs (Start) and isolated cells (Isolated). Labeling of start cells with a mouse IgG2b, kappa PE isotype control antibody is shown in the bottom panel (open histogram).

Data for Unconjugated

Figure 5. Data for Unconjugated

Flow cytometry analysis of human peripheral blood mononuclear cells (PBMCs) labeled with Anti-Human CD20 Antibody, Clone 2H7, followed by Goat Anti-Mouse IgG (H+L) Antibody, Polyclonal, FITC (Catalog #60138FI) (filled histogram), or Mouse IgG2b, kappa Isotype Control Antibody, Clone MPC-11 (Catalog #60072), followed by Goat Anti-Mouse IgG (H+L) Antibody, Polyclonal, FITC (solid line histogram).

Data for Biotin-Conjugated

Figure 6. Data for Biotin-Conjugated

Flow cytometry analysis of human peripheral blood mononuclear cells (PBMCs) labeled with Anti-Human CD20 Antibody, Clone 2H7, Biotin, followed by streptavidin (SAV) APC (filled histogram), or Mouse IgG2b, kappa Isotype Control Antibody, Clone MPC-11, Biotin (Catalog #60072BT), followed by SAV APC (solid line histogram).

Data for PerCP-Cy55-Conjugated

Figure 7. Data for PerCP-Cy55-Conjugated

Flow cytometry analysis of human peripheral blood mononuclear cells (PBMCs) labeled with Anti-Human CD20 Antibody, Clone 2H7, PerCP-Cy5.5 (filled histogram) or Mouse IgG2b, kappa Isotype Control Antibody, Clone MPC-11, PerCP-Cy5.5 (Catalog #60072PS; solid line histogram).