CD4 抗体
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北京 101111
Quick Overview for CD4 抗体 (ABIN125999)
抗原
See all CD4 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 MEM-115 recognizes an epitope in the D1 domain of CD4 antigen, a 55 kDa transmebrane glycoprotein expressed on a subset of T lymphocytes (helper T cells) and also on monocytes, tissue macrophages and granulocytes.
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交叉反应 (详细)
- Species reactivity (tested):Human.
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纯化方法
- Affinity Chromatography on Protein A
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免疫原
- Human thymocytes and T lymphocytes
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亚型
- IgG2a
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应用备注
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Excellent for Immunoprecipitation. Functional The antibody MEM-115 blocks binding of HIV gp120 to CD4 Molecule and it also strongly inhibits CD4-MHC Class II interactions. Flow Cytometry: Although it has not been tested rigorously, following data suggest that the antibody MEM-115 is a low-affinity antibody: its binding to T cells increases at elevated temperature, monovalent Fab fragments essentially do not bind to T cells. MEM-115 is negative in Western blotting even with non-reduced samples of cell lysates.
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
- PBS, pH 7.4 without preservatives
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储存液
- Without preservative
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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 for 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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: "The small chemical vacuolin-1 inhibits Ca(2+)-dependent lysosomal exocytosis but not cell resealing." in: EMBO reports, Vol. 5, Issue 9, pp. 883-8, (2004) (PubMed).
: "Cell surface receptors, virus entry and tropism of primate lentiviruses." in: The Journal of general virology, Vol. 83, Issue Pt 8, pp. 1809-29, (2002) (PubMed).
: "p56Lck anchors CD4 to distinct microdomains on microvilli." in: Proceedings of the National Academy of Sciences of the United States of America, Vol. 99, Issue 4, pp. 2008-13, (2002) (PubMed).
: "Monoclonal antibodies against individual cytokeratins in the detection of metastatic spread." in: International journal of cancer. Supplement = Journal international du cancer. Supplement, Vol. 3, pp. 50-5, (1989) (PubMed).
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: "The small chemical vacuolin-1 inhibits Ca(2+)-dependent lysosomal exocytosis but not cell resealing." in: EMBO reports, Vol. 5, Issue 9, pp. 883-8, (2004) (PubMed).
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- CD4
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别名
- CD4
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背景
- CD4 is a single chain transmembrane glycoprotein and belongs to immunoglobulin supergene family. In extracellular region there are 4 immunoglobulin-like domains (1 Ig-like V-type and 3 Ig-like C2-type). Transmembrane region forms 25 aa, cytoplasmic tail consists of 38 aa. Domains 1,2 and 4 are stabilized by disulfide bonds. The intracellular domain of CD4 is associated with p56Lck, a Src-like protein tyrosine kinase. It was described that CD4 segregates into specific detergent-resistant T-cell membrane microdomains. Extracellular ligands: MHC class II molecules (binds to CDR2-like region in CD4 domain 1), HIV envelope protein gp120 (binds to CDR2-like region in CD4 domain 1), IL-16 (binds to CD4 domain 3), Human seminal plasma glycoprotein gp17 (binds to CD4 domain 1), L-selectin Intracellular ligands: p56Lck CD4 is a co-receptor involved in immune response (co-receptor activity in binding to MHC class II molecules) and HIV infection (human immunodeficiency virus, CD4 is primary receptor for HIV-1 surface glycoprotein gp120). CD4 regulates T-cell activation, T/B-cell adhesion, T-cell diferentiation, T-cell selection and signal transduction. Defects in antigen presentation (MHC class II) cause dysfunction of CD4+ T-cells and their almost complete absence in patients blood, tissue and organs (SCID immunodeficiency).Synonyms: T-cell surface antigen T4/Leu-3, T-cell surface glycoprotein CD4
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基因ID
- 920
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UniProt
- P01730
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途径
- TCR Signaling, Maintenance of Protein Location, CXCR4-mediated Signaling Events
抗原
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