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41039
ALK (D5F3®) XP® Rabbit mAb (Alexa Fluor® 700 Conjugate)
抗体偶联物
单克隆抗体
R
Recombinant

ALK (D5F3®) XP® Rabbit mAb (Alexa Fluor® 700 Conjugate) #41039

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Flow cytometric analysis of fixed and permeabilized TF-1 cells (blue) and KARPAS-299 cells (green) using ALK (D5F3®) XP® Rabbit mAb (Alexa Fluor® 700 Conjugate). Cell Line Source: Dr Abraham Karpas at the University of Cambridge.
To Purchase # 41039S
Cat. # Size Price Inventory
41039S
100 µl  (50 tests)

Supporting Data

REACTIVITY H
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 Alexa Fluor® 700 fluorescent dye and tested in-house for direct flow cytometric analysis in human cells. This antibody is expected to exhibit the same species cross-reactivity as the unconjugated ALK (D5F3®) XP® Rabbit mAb #3633.

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

ALK (D5F3®) XP® Rabbit mAb (Alexa Fluor® 700 Conjugate) 可检测内源水平的 ALK 总蛋白以及 ALK 融合蛋白(如 EML4-ALK 变体和 NPM-ALK),即使在水平较低的情况下也可检测到。该抗体不与其他家族成员发生交叉反应。

物种反应性:

来源/纯化

使用与人 ALK 羧基末端残基相对应的重组蛋白,对动物进行免疫接种来产生单克隆抗体。

背景

间变性淋巴瘤激酶 (ALK) 是多效生长因子 (PTN) 的一种酪氨酸激酶受体,PTN 是与胚胎脑发育有关的生长因子 (1-3)。在表达 ALK 的细胞中,PTN 诱导 ALK 和下游效因子 IRS-1、Shc、PLCγ 和 PI3 激酶发生磷酸化 (1)。ALK 最初作为一种通过转位过程产生的核磷蛋白 (NPM)-ALK 融合蛋白发现 (4)。研究人员发现,NPM-ALK 融合蛋白是一种与间变性淋巴瘤相关的结构激活且会致癌的酪氨酸激酶 (4)。研究文献表明,NPM-ALK 激活 PLCγ 可能是有丝分裂活性的关键步骤,可能与间变性淋巴瘤的发病机理有关 (5)。
针对非小细胞肺癌 (NSCLC) 细胞系的研究文献,描述了与 ALK 和棘皮动物微管相关蛋白样 4 (EML4) 的不同的 ALK 致癌融合蛋白,并且在某些肺腺癌病例中存在相应融合转录蛋白。微管相关蛋白 EML4 的短氨基末端区域能融合到 ALK 的激酶结构域 (6-8)。

通路

探索与本品相关的通路。

有限使用

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仅供研究使用。不得用于诊断流程。
Cell Signaling Technology 是 Cell Signaling Technology, Inc. 的商标。
Alexa Fluor 是 Life Technologies 公司的注册商标。
KARPAS 细胞系来源:剑桥大学 Abraham Karpas 博士。
本产品依据源于 Life Technologies Corporation 的知识产权许可提供。本产品的转让条件为买方仅在买方开展的研究中使用所购买的产品,不包括合同研究或任何服务收费研究,并且买方不得 (1) 将本产品或其组分用于以下方面:(a) 用于诊断、诊疗或预防目的;(b) 用于检测、分析或筛选服务或获得信息,以按检测收取报酬;或 (c) 用于制造或质量保证或质量控制,和/或 (2) 销售或转让本产品或其组分用于转售,无论是否转售供研究使用。如需了解有关购买本品用于除上述目的之外目的的许可信息,请联系 Life Technologies Corporation(地址:5791Van Allen Way, Carlsbad, CA 92008 USA)或 [受保护的电子邮件]
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