CD20 抗体
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北京 101111
Quick Overview for CD20 抗体 (ABIN120749)
抗原
See all CD20 (MS4A1) 抗体适用
宿主
克隆类型
标记
应用范围
克隆位点
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特异性
- The antibody LT20 reacts with CD20 (Bp35), a 33-37 kDa non-glycosylated membrane receptor with four transmembrane domains, expressed on B lymphocytes (it is lost on plasma cells), follicular dendritic cells, and at low levels on peripheral blood T lymphocytes.
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交叉反应 (详细)
- Species reactivity (tested):Human
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纯化方法
- Precipitation methods and ion exchange chromatography
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纯度
- > 95 % (by SDS-PAGE)
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免疫原
- Normal human lymphocytes from lymph node
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亚型
- IgG2a
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应用备注
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Flow Cytometry.
Other applications not tested.
Optimal dilutions are dependent on conditions and should be determined by the user. -
限制
- 仅限研究用
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浓度
- 1.0 mg/mL
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缓冲液
- Phosphate buffered saline (PBS) with 15 mM sodium azide, approx. pH 7.4
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储存液
- Sodium azide
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注意事项
- This product contains sodium azide: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.
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储存条件
- 4 °C/-20 °C
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储存方法
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Store the antibody at 2 - 8 °C up to one month or (in aliquots) at -20 °C for longer. Avoid repeated freezing and thawing.
Shelf Life: one year from despatch. -
有效期
- 12 months
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- CD20 (MS4A1) (Membrane-Spanning 4-Domains, Subfamily A, Member 1 (MS4A1))
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别名
- CD20
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背景
- CD20 is a cell surface 33-37 (depending on the degree of phosphorylation) kDa non-glycosylated surface phosphoprotein expressed on mature and most malignant B cells, but not stem cells or plasma cells (low number of the CD20 has been also detected on a subpopulation of T lymphocytes and it can be expressed on follicular dendritic cells). Its expression on B cells is synchronous with the expression of surface IgM. CD20 regulates transmembrane calcium conductance (probably functioning as a component of store-operated calcium channel), cell cycle progression and B-cell proliferation. It is associated with lipid rafts, but the intensity of this association depends on extracellular triggering, employing CD20 conformational change and/or BCR (B cell antigen receptor) aggregation. After the receptor ligation, BCR and CD20 colocalize and then rapidly dissociate before BCR endocytosis, whereas CD20 remains at the cell surface. CD20 serves as a useful target for antibody-mediated therapeutic depletion of B cells, as it is expressed at high levels on most B-cell malignancies, but does not become internalized or shed from the plasma membrane following mAb treatment.Synonyms: B-cell marker, B-lymphocyte antigen CD20, B-lymphocyte surface antigen B1, Bp35, Leu-16, MS4A1, Membrane-spanning 4-domains subfamily A member 1
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基因ID
- 931
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UniProt
- P11836
抗原
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