Phospho-ATM (S1981) Rabbit Recombinant mAb

Filter:

  • WB
规格 价格 库存 购买数量
20ul RMB 547.33 现货
100ul RMB 1700.76 现货
更大包装 有超大折扣 点击询价
 

400-668-6834

info@selleck.cn

 

使用信息

抗体应用 WB,ELISA
稀释比例
WB
1:1000
反应性 Human
MW (kDa) 370kDa
抗体类型 Rabbit
浓度 1mg/ml
储存液配方 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide.
储存条件
(自收到货起)
Store at –20°C.

Datasheet & SDS

生物描述

特异性 Phospho-ATM (S1981) Rabbit Recombinant mAb detects endogenous levels of phosphorylated ATM (S1981).
背景 Ataxia telangiectasia mutated (ATM) plays a critical role in the cellular response to DNA damage. In response to DNA double-strand breaks (DSBs), ATM is autophosphorylated at serine 1981. ATM is both activated by and recruited to DNA double-strand breaks (DSBs). The MRE11-RAD50-NBS1 (MRN) complex is required for both processes as shown by attenuated activation and no recruitment of ATM to DSBs upon damage in MRE11- and NBS1-deficient cell lines. Upon activation, ATM phosphorylates a number of substrates including targets that initiate cell cycle arrest, DNA repair, and apoptosis. ATM is also rapidly phosphorylated at multiple residues in response to ionizing radiation (IR). In human cells, serines 367, 1893, and 1981 have been shown to be autophosphorylated in response to IR. Autophosphorylation at S1981 leads to dissociation of ATM from a dimer into an active monomer. After activation, the phosphorylated ATM monomers are recruited to DNA breaks where they phosphorylate various substrates. Autophosphorylation of ATM at serine 1981 is dispensable for the ability of ATM to localize to DSBs, but is required for sustained retention of ATM at DSBs. Ablation of the autophosphorylation site affects the ability of ATM to phosphorylate its downstream targets after DNA damage and correct the radiosensitivity of an A-T cell line.

实验方法

WB

Western Blotting

Sample preparation

1. Aspirate media from cultures and Wash the cells with 1X PBS.
2. Lyse cells by adding 1X SDS sample buffer and transfer the extract to a microcentrifuge tube. Keep onice.
3. Sonicate for 10–15 sec to complete cell lysis and shear DNA.
4. Heat a 20 µl sample to 95–100°C for 5 min, then cool on ice.
5. Centrifuge for 5 min (with Microcentrifuge).
6. Load appropriate volumes of samples onto SDS-PAGE gel (loading quantity of protein sample depends on the concentration of extracted proteins).
NOTE: At the same time, please load the pre-stained molecular weight markers to determine molecular weights and verify electrotransfer.
7. Electrotransfer to nitrocellulose/PVDF membrane.

Membrane Blocking and Antibody Incubations

a. Blocking

1. (Optional) After transfer, wash the transferred membrane with TBS for 5 min at room temperature.
2. Incubate the membrane in the blocking buffer for 1 hr at room temperature.
3. Wash three times for 5 min each with TBST.

b. Antibodies Incubation

1. Incubate membrane and primary antibody (at the appropriate dilution and diluent recommended) in a primary antibody dilution buffer with gentle agitation overnight at 4°C.
2. Wash three times for 5 min each with TBST.
3. Incubate membrane with an appropriate second antibodydissolved in the blocking buffer with gentle agitation for 1 hr at room temperature.
4. Wash three times for 5 min each with TBST.
5. Proceed with detection.

Detection of Proteins

1. After antibodies incubation, Wash membrane three times for 5 minutes in TBST.
2. PrepareECL Reagent (or other chromogenic agents/substrate according to your second antibody). Mix well.
3. Incubate substrate with membrane for 1 minute, remove excess solution (membrane remains wet), wrap in plastic and expose to X-ray film.

技术支持

在订购、运输、储存和使用我们的产品的任何阶段,您遇到的任何问题,均可以通过拨打我们的热线电话400-668-6834,或者技术支持邮箱tech@selleck.cn,直接联系到我们。我们会在24小时内尽快联系您。

* 必填项

请输入您的姓名
请输入您的邮箱地址 请输入一个有效的邮箱地址
请写点东西给我们
在线咨询
联系我们