CD20 (B9E9), 0.2mg/mL

Recognizes a protein of 33-37 kDa, identified as CD20 (Workshop V; Code CD20.12) . B9E9 recognizes extracellular domain of CD20. The epitope is similar to or identical to that recognized by other CD20 antibodies including Leu-16 and B1. This MAb can be used for immunophenotyping of leukemia and malignant cells, B lymphocyte detection in peripheral blood, B cell localization in tissues and B lymphocyte purification by immunosorbent methods. CD20 is a non-Ig differentiation antigen of B-cells and its expression is restricted to normal and neoplastic B-cells, being absent from all other leukocytes and tissues. CD20 is expressed by pre B-cells and persists during all stages of B-cell maturation but is lost upon terminal differentiation into plasma cells. Protein passes through the membrane 4 times with both ends in cytoplasm and exposes one short and one longer loop to the external environment. CD20 is not glycosylated in resting B cells and its cytoplasmic domains are differentially phosphorylated upon activation. It acts as a calcium channel involved in B-cell activation and cell cycle progression. Primary antibodies are available purified, or with a selection of fluorescent CF® Dyes and other labels. CF® Dyes offer exceptional brightness and photostability. Note: Conjugates of blue fluorescent dyes like CF®405S and CF®405M are not recommended for detecting low abundance targets, because blue dyes have lower fluorescence and can give higher non-specific background than other dye colors.

9007-83-4

APY; ATOPY; B-lymphocyte cell-surface antigen B1; Bp35; Fc epsilon receptor I beta chain; Fc Fragment of IgE high affinity I receptor for beta polypeptide; FCER1B; High affinity immunoglobulin epsilon receptor subunit beta; IgE Fc receptor subunit beta; IGEL; IGER; IGHER; LEU16; Leukocyte surface antigen Leu-16; Ly44; Membrane spanning 4 domains subfamily A member 2; Membrane-spanning 4-domains subfamily A member 1 (MS4A1)

41116161

Primary and secondary antibodies for multiple methodology immunostaining detection application

MS4A1

931

712553

P11836

P11836

CD20

Lymphoblastoid cell line Daudi

CD20

B9E9

Primary

Animal

Animal

Flow, surface (published) |Functional studies (published) |WB (published)

Immunology

Daudi, Raji, and U266, and human lymphocytes. In normal lymph nodes and tonsils, CD20 is predominantly detected on B cells in germinal centers.

2 years

0.2 mg/mL

PBS, 0.05% BSA, 0.05% azide

33-37 kDa

Note: References for this clone sold by other suppliers may be listed for expected applications. Blood (2002) 100(13), 4512-4520. (surface Flow) Cancer Res (2000) 60, 7170 -7176. (receptor activation) Blood (2003) 101 (7), 2507-2513. (WB)

RT (ND)

Stable at room temperature or 37°C (98°F) for 7 days.

Guaranteed for at least 24 months from date of receipt when stored as recommended

IgG2a, kappa

Mus musculus (mouse), BSA from bovine serum (Bos taurus) or recombinant BSA produced in Chinese hamster ovary cells.

PBS, 0.05% BSA, 0.05% sodium azide (CAS 26628-22-8)