CD152 (CTLA-4) Monoclonal Antibody (14D3), APC-eFluor 780, eBioscience™
货号:47-1529-41,47-1529-42
规格:25tests,100tests
价格:1402,3513
产品类型:流式抗体
品牌:Thermo Fisher
抗原:CD152
物种:其它
宿主:小鼠
抗体亚型:IgG2a, kappa
克隆号:14D3
荧光染料:APC-eFluor 780
抗体类型: | 流式抗体 | 同型对照: | IgG2a, kappa |
浓度: | 5 µL/Test | 用法: | 5 µL (0.06 µg)/test (Flow) |
产品详细信息Description:The 14D3 monoclonal antibody reacts with human CD152, also known as cytotoxic T lymphocyte antigen-4 (CTLA-4). CTLA-4, a protein with structural similarities to CD28, is expressed on activated T cells (activated B cells may also express CTLA-4) and binds the B7 family members, CD80 (B7-1) and CD86 (B7-2), with higher affinity than CD28 does. CTLA-4 and CD28 appear to deliver opposing signals to T cells: while CD28 is a potent costimulator, CTLA-4 restricts the progression of T cellsto an activated state by inhibiting IL-2 secretion and cellular proliferation. The cytoplasmic portion of CTLA-4 contains ER retention motifs, resulting in intracellular localization of a large proportion of newly synthesized CTLA-4 in response to TCR signaling.The 14D3 antibody also recognizes rhesus monkey and has inhibitor activity.Applications Reported: This 14D3 antibody has been reported for use in intracellular staining followed by flow cytometric analysis.Applications Tested: This 14D3 antibody has been pre-titrated and tested by intracellular staining and flow cytometric analysis of stimulated human peripheral blood cells using the Intracellular Fixation and Permeabilization Buffer Set (cat. 88-8824) and protocol. Please refer to Best Protocols: Protocol A: Two step protocol for (cytoplasmic) intracellular proteins located under the Resources Tab online. This can be used at 5 µL (0.06 µg) per test. A test is defined as the amount (µg) of antibody that will stain a cell sample in a final volume of 100 µL. Cell number should be determined empirically but can range from 10^5 to 10^8 cells/test.Furthermore, due to the intracellular localization of a large portion of CTLA-4, for complete detection it may be necessary to assess intracellular expression, in addition to surface expression of CTLA-4.APC-eFluor™ 780 emits at 780 nm and is excited with the Red laser (633 nm). Please make sure that your instrument is capable of detecting this fluorochrome.Light sensitivity: This tandem dye is sensitive to photo-induced oxidation. Please protect this vial and stained samples from light.Fixation: Samples can be stored in IC Fixation Buffer (Product # 00-8222) (100 µL of cell sample + 100 µL of IC Fixation Buffer) or 1-step Fix/Lyse Solution (Product # 00-5333) for up to 3 days in the dark at 4°C with minimal impact on brightness and FRET efficiency/compensation. Some generalizations regarding fluorophore performance after fixation can be made, but clone specific performance should be determined empirically.Excitation: 633-647 nm; Emission: 780 nm; Laser: Red Laser.Filtration: 0.2 µm post-manufacturing filtered.Target InformationCTLA4 (Cytotoxic T-Lymphocyte Antigen 4) is a CD28-family receptor expressed on mainly CD4+ T cells. It binds the same ligands as CD28 (CD80 and CD86 on B cells and dendritic cells), but with higher affinity than CD28. However, in contrast to CD28 which enhances cell function when bound at the same time as the T cell receptor, CTLA4 inhbits the T cell and prevents it from functioning. Intracellular CTLA4 is also found in regulatory T cells and may be important to their function.For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
数据 |
CD152 (CTLA-4) Antibody (47-1529-41) in FlowStaining of unstimulated (left) or 3-day PHA-stimulated (right) (Product # 00-4977-03) normal human peripheral blood cells with Anti-Human CD4 eFluor® 450 (Product # 48-0049-42) and Anti-Human CD152 (CTLA-4) APC-eFluor® 780. Viable cells in the lymphocyte gate, as determined by Fixable Viability Dye eFluor® 506 (Product # 65-0866-14), were used for analysis. |
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