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16606
ERG (A7L1G) Rabbit mAb (PE Conjugate)
抗体偶联物
单克隆抗体
R
Recombinant

ERG (A7L1G) Rabbit mAb (PE Conjugate) #16606

Citations (2)
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Flow cytometric analysis of A-204 cells (blue) and MOLT-4 cells (green) using ERG (A7L1G) Rabbit mAb (PE Conjugate) (solid lines) or a concentration-matched Rabbit (DA1E) mAb IgG XP® Isotype Control (PE Conjugate) #5742 (dashed lines).
To Purchase # 16606S
Cat. # Size Price Inventory
16606S
100 µl  (50 tests)

Supporting Data

REACTIVITY H M
SENSITIVITY Endogenous
MW (kDa)
Source/Isotype Rabbit IgG

Application Key:

  • WB-Western Blot
  • IP-Immunoprecipitation
  • IHC-Immunohistochemistry
  • ChIP-Chromatin Immunoprecipitation
  • C&R-CUT&RUN
  • C&T-CUT&Tag
  • DB-Dot Blot
  • eCLIP-eCLIP
  • IF-Immunofluorescence
  • F-Flow Cytometry

Species Cross-Reactivity Key:

  • H-Human
  • M-Mouse
  • R-Rat
  • Hm-Hamster
  • Mk-Monkey
  • Vir-Virus
  • Mi-Mink
  • C-Chicken
  • Dm-D. melanogaster
  • X-Xenopus
  • Z-Zebrafish
  • B-Bovine
  • Dg-Dog
  • Pg-Pig
  • Sc-S. cerevisiae
  • Ce-C. elegans
  • Hr-Horse
  • GP-Guinea Pig
  • Rab-Rabbit
  • All-All Species Expected

Product Description

This Cell Signaling Technology antibody is conjugated to phycoerythrin (PE) and tested in-house for direct flow cytometry analysis in human cells. This antibody is expected to exhibit the same species cross-reactivity as the unconjugated ERG (A7L1G) Rabbit mAb #97249.

Product Usage Information

Application Dilution
Flow Cytometry (Fixed/Permeabilized) 1:50

Storage

Supplied in PBS (pH 7.2), less than 0.1% sodium azide and 2 mg/ml BSA. Store at 4°C. Do not aliquot the antibody. Protect from light. Do not freeze.

Protocol

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Flow Cytometry, Methanol Permeabilization Protocol for Directly Conjugated Antibodies

A. Solutions and Reagents

All reagents required for this protocol may be efficiently purchased together in our Intracellular Flow Cytometry Kit (Methanol) #13593, or individually using the catalog numbers listed below.

NOTE: Prepare solutions with reverse osmosis deionized (RODI) or equivalent grade water.

  1. 1X Phosphate Buffered Saline (PBS): To prepare 1 L 1X PBS: add 100 ml 10X PBS (#12528) to 900 ml water mix.
  2. 4% Formaldehyde, Methanol-Free (#47746)
  3. 100% Methanol (#13604): Chill before use
  4. Antibody Dilution Buffer: Purchase ready-to-use Flow Cytometry Antibody Dilution Buffer (#13616), or prepare a 0.5% BSA PBS buffer by dissolving 0.5 g Bovine Serum Albumin (BSA) (#9998) in 100 ml 1X PBS. Store at 4°C.

NOTE: When including fluorescent cellular dyes in your experiment (including viability dyes, DNA dyes, etc.), please refer to the dye product page for the recommended protocol. Visit www.cellsignal.com for a full listing of cellular dyes validated for use in flow cytometry.

B. Fixation

NOTE: Adherent cells or tissue should be dissociated and in single-cell suspension prior to fixation.

NOTE: Optimal centrifugation conditions will vary depending upon cell type and reagent volume. Generally, 150-300g for 1-5 minutes will be sufficient to pellet the cells.

NOTE: If using whole blood, lyse red blood cells and wash by centrifugation prior to fixation.

NOTE: Antibodies targeting CD markers or other extracellular proteins may be added prior to fixation if the epitope is disrupted by formaldehyde and/or methanol. The antibodies will remain bound to the target of interest during the fixation and permeabilization process. However, note that some fluorophores (including PE and APC) are damaged by methanol and thus should not be added prior to permeabilization. Conduct a small-scale experiment if you are unsure.

  1. Pellet cells by centrifugation and remove supernatant.
  2. Resuspend cells in approximately 100 µl 4% formaldehyde per 1 million cells. Mix well to dissociate pellet and prevent cross-linking of individual cells.
  3. Fix for 15 min at room temperature (20-25°C).
  4. Wash by centrifugation with excess 1X PBS. Discard supernatant in appropriate waste container. Resuspend cells in 0.5-1 ml 1X PBS. Proceed to Permeabilization step.
    1. Alternatively, cells may be stored overnight at 4°C in 1X PBS.

C. Permeabilization

  1. Permeabilize cells by adding ice-cold 100% methanol slowly to pre-chilled cells, while gently vortexing, to a final concentration of 90% methanol.
  2. Permeabilize for a minimum of 10 min on ice.
  3. Proceed with immunostaining (Section D) or store cells at -20°C in 90% methanol.

D. Immunostaining

NOTE: Count cells using a hemocytometer or alternative method.

  1. Aliquot desired number of cells into tubes or wells. (Generally, 5x105 to 1x106 cells per assay.)
  2. Wash cells by centrifugation in excess 1X PBS to remove methanol. Discard supernatant in appropriate waste container. Repeat if necessary.
  3. Resuspend cells in 100 µl of diluted primary antibody, prepared in Antibody Dilution Buffer at a recommended dilution or as determined via titration.
  4. Incubate for 1 hr at room temperature. Protect from light.
  5. Wash by centrifugation in Antibody Dilution Buffer or 1X PBS. Discard supernatant. Repeat.
  6. Resuspend cells in 200-500 µl of 1X PBS and analyze on flow cytometer.

posted July 2009

revised June 2020

实验步骤编号:407

特异性/灵敏度

ERG (A7L1G) Rabbit mAb (PE Conjugate) 可识别内源水平的 ERG 总蛋白。根据序列同源性,该抗体应可以检测同工型 ERG1、ERG2 和 ERG3。这种抗体不会与 Fli1 发生交叉反应。

物种反应性:

人, 小鼠

基于 100% 序列同源性预测发生反应的物种:

大鼠, 仓鼠 , 猪 , 马, 豚鼠

来源/纯化

使用与人 ERG 蛋白的羧基末端附近残基相对应的合成肽,对动物进行免疫接种来产生单克隆抗体。

背景

ETS 相关基因 (ERG) 是序列特异性 DNA 结合转录因子的 E-26 转化特异性 (ETS) 家族成员 (1)。ERG 在脊椎动物发育中发挥着重要且高度保守的作用。在胚胎发育早期,ERG 在胚胎中胚叶和内皮中高度表达,并在血管系统形成、泌尿生殖道形成和骨发育中发挥着重要作用 (2,3)。在胚胎发育晚期,ERG 发挥作用且调节造血干细胞多能性、内皮细胞稳态和血管生成 (2,4-7)。ERG 表达不只限于发育。在成年小鼠中,ERG 正常情况下在内皮组织(包括肾上腺内皮、软骨内皮、心脏内皮、脾脏内皮、淋巴内皮)和嗜酸性粒细胞中表达 (8)。但是,ERG 活性的控制解除(经常因染色体重排所致)与多种不同癌症的预后不良相关。这种染色体易位已经在 5-10% 的 Ewing 肉瘤(一种侵袭性骨肿瘤和软组织肿瘤)中鉴定,其可产生 EWS/ERG 嵌合蛋白,且这种嵌合蛋白由 Ewing 肉瘤断点区 1 的氨基末端反式激活结构域 (EWS) 和 ERG 的羧基末端 ETS 结构域组成 (9)。ERG 和 TLS/FUS 或 ERG 和 ELF4 之间的染色体易位与急性髓性白血病相关 (10, 11)。由 TMPRSS2 基因的雄激素驱动型启动子发生基因融合而产生的 ERG 过表达,已经被鉴定为前列腺癌中转移和不良预后标志的关键驱动力 (12)。

有限使用

除非如以 CST 合法授权代表签署的书面形式另行明确同意,否则以下条款适用于 CST、其附属公司或其分销商提供的产品。除非 CST 合法授权代表以书面形式单独接受,否则任何附加于或异于此处所载条款和条件的客户条款和条件均被拒绝且无效。

产品用“仅供研究使用”或类似标示声明标示,并且尚未经 FDA 或其他国外或国内监管实体出于任何目的批准、准许或许可。客户不得出于任何诊断或治疗目的或以任何与产品标示声明相冲突的方式使用任何产品。CST 销售或许可的产品提供给作为最终用户的客户,且仅用于研究和开发用途。出于诊断、预防或治疗目的任何产品使用或出于转售(单独或作为成分)或其他商业目的的任何产品购买都要求来自 CST 的单独许可。客户 (a) 不得向任何第三方出售、许可、出借、捐赠或另行转让或提供任何本公司产品,无论单独或联合其他材料方式,或使用本公司产品制造任何商业产品,(b) 不得复制、修改、逆向工程、反编译、反汇编或另行尝试发现本公司产品的底层结构或技术,或出于开发与 CST 产品或服务竞争的任何产品或服务的目的使用本公司产品,(c) 不得从本公司产品改变或移除任何商标、商品名称、徽标、专利或版权声明或标记,(d) 仅应根据 CST 产品销售条款和任何适用文档使用本公司产品,以及 (e) 应就客户联系本公司产品所用的任何第三方产品或服务而言遵守任何许可、服务条款或类似协议。

仅供研究使用。不得用于诊断流程。
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