1. 抗体
  2. 一抗
  3. 单克隆抗体 重组抗体 流式抗体
  4. ATF4 抗体 (YA605)

ATF4 Antibody (YA605) 是一个兔来源、无偶联标记、抗 ATF4 的 IgG 单克隆抗体。

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规格 价格 是否有货 数量
20 μL ¥1080 In-stock
50 μL ¥1600 In-stock
100 μL ¥2600 In-stock
250 μL   询价  

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  • WB: 蛋白质免疫印迹;
  • IHC-P: 石蜡切片样本的免疫组织化学;
  • IHC-F: 冰冻切片样本的免疫组织化学;
  • ICC/IF: 细胞免疫荧光;
  • IF-Tissue: 组织免疫荧光;
  • mIHC: 多重荧光免疫组化;
  • IP: 免疫沉淀;
  • ChIP: 染色质免疫沉淀;
  • FC: 流式细胞术;
  • ELISA: 酶联免疫吸附试验
  • 产品详情

  • 验证图片

  • 背景信息

  • 产品资料

描述

ATF4 Antibody (YA605) is a Rabbit-derived and non-conjugated IgG monoclonal antibody, targeting to ATF4.

宿主

Rabbit

克隆性

Recombinant,Monoclonal

分子量
Predicted band size: 39 kDa;
Observed band size: 55 kDa
请注意:因蛋白存在修饰或聚体等情况,以实测为准,预测仅为参考。
反应种属
Human, Mouse, Rat
蛋白数据库
基因 ID
免疫原

Synthetic peptide corresponding to Human ATF4.AA range:1-220.

应用 & 推荐
稀释比例
应用 稀释比
WB
WB: 蛋白质免疫印迹
1:500-1:2000
ICC/IF
ICC/IF: 细胞免疫荧光
1:50-1:200
IHC-P
IHC-P: 石蜡切片样本的免疫组织化学
1:50-1:200
FC
FC: 流式细胞术
1:50-1:100
IP
IP: 免疫沉淀
Use at an assay dependent concentration.
敏感性 Endogenous 纯度 Protein A affinity purified.
偶联 Non-conjugated 修饰 Unmodified
同型 IgG  
性状

液体

组分

Supplied in 1*TBS (pH7.4), 0.05% BSA and 40% Glycerol. Preservative: 0.05% Sodium Azide.

保存条件 & 期限

Stored at -20°C for 1 year. Avoid repeated freeze / thaw cycles.

运输条件

Shipping with blue ice.

验证图片
ALL WB IHC-P ICC
  • Western blot analysis of extracts from Hela(lane 2(20ug) , HL-60(lane 3(20ug) and K562(lane 4(20ug) using ATF4 Antibody (HY-P80486) Rabbit mAb. Proteins were transferred to a PVDF membrane and blocked with 5% non-fat milk in TBST for 2 hour at room temperature. The primary antibody (1/1000) and Loading control antibody (Beta Actin, HY-P83730, 1/10000) was used in 5% non-fat milk in TBST at 4°C overnight. Goat Anti-Mouse/Rabbit IgG-HRP Secondary Antibody (1/10000) was used for 1 hour at room temperature.

  • Immunohistochemical analysis of paraffin-embedded rat colon tissue using ATF4 Antibody. The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) for 8 minutes. The tissues were blocked in QuickBlock for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (HY-P80486, 1:400) in 4℃ overnight. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.

  • Immunohistochemical analysis of paraffin-embedded rat colon tissue using ATF4 Antibody. The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) for 8 minutes. The tissues were blocked in QuickBlock for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (HY-P80486, 1:400) in 4℃ overnight. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.

  • Immunocytochemistry analysis of Neuro-2a cells labeling ATF4 with ATF4 Antibody (HY-P80486) at 1/50 dilution. Cells were fixed in 4% paraformaldehyde for 15 minutes at room temperature, permeabilized with 0.1% Triton X-100 for 10 minutes at room temperature, then blocked with QuickBlock™ Blocking Buffer for Immunol Staining for 10 min at room temperature. Cells were then incubated with ATF4 Antibody (HY-P80486) at 1/50 dilution in QuickBlock™ Blocking Buffer for Immunol Staining at 4 ℃. Alexa Fluor® 488-conjugated AffiniPure Goat Anti-Rabbit IgG H&L(HY-P8002, Green) was used as the secondary antibody at 1/1,000 dilution. PBS instead of the primary antibody was used as the secondary antibody only control. The Nuclear counterstain was DAPI (Blue).

  • Immunocytochemistry analysis of Neuro-2a cells labeling ATF4 with ATF4 Antibody (HY-P80486) at 1/100 dilution. Cells were fixed in 4% paraformaldehyde for 15 minutes at room temperature, permeabilized with 0.1% Triton X-100 for 10 minutes at room temperature, then blocked with QuickBlock™ Blocking Buffer for Immunol Staining for 10 min at room temperature. Cells were then incubated with ATF4 Antibody (HY-P80486)at 1/100 dilution in QuickBlock™ Blocking Buffer for Immunol Staining at 4 ℃. Alexa Fluor® 488-conjugated AffiniPure Goat Anti-Rabbit IgG H&L(HY-P8002,Green) was used as the secondary antibody at 1/1,000 dilution. PBS instead of the primary antibody was used as the secondary antibody only control. The Nuclear counterstain was DAPI (Blue).

背景
功能:该转录因子可与 cAMP 反应元件 (CRE)(共有序列:5'-GTGACGT[AC][AG]-3') 结合,并具有两种生物学功能:在正常细胞条件下作为代谢和氧化还原过程的调节因子,以及在整合应激反应 (ISR) 期间作为主转录因子 (PubMed:16682973, PubMed:17684156, PubMed:31023583, PubMed:31444471, PubMed:32132707)。它以异二聚体的形式与不对称 CRE 结合,并以同二聚体的形式与回文 CRE 结合 (基于序列相似性)。 ATF4 是 ISR 的核心效应因子,对于适应各种应激 (例如内质网应激、氨基酸饥饿、线粒体应激或氧化应激) 至关重要 (PubMed:31023583, PubMed:32132707)。在 ISR 过程中,ATF4 的翻译通过一种替代的核糖体翻译再起始机制被诱导,该机制响应 EIF2S1/eIF-2-α的磷酸化。应激诱导的 ATF4 作为应激反应基因的主转录因子,促进细胞恢复 (PubMed:31023583, PubMed:32132706, PubMed:32132707)。ATF4 促进与氨基酸充足和抗氧化应激相关的基因转录,从而保护细胞免受内质网氧化引起的代谢后果 (基于相似性)。激活 NLRP1 的转录,可能与其他因子协同作用以响应内质网应激 (PubMed:26086088)。激活天冬酰胺合成酶 (ASNS) 的转录以响应氨基酸缺乏或内质网应激 (PubMed:11960987)。然而,当与 DDIT3/CHOP 结合时,氨基酸缺乏会抑制 ASNS 基因的转录激活 (PubMed:18940792)。与 DDIT3/CHOP 共同作用,通过促进参与细胞氨基酸代谢过程、mRNA 翻译和末端未折叠蛋白反应 (末端 UPR) 的基因表达来介导程序性细胞死亡。末端 UPR 是一种细胞反应,当内质网应激持续且无法消除时,会引发程序性细胞死亡 (基于相似性)。它激活 EIF2AK3/PERK 介导的未折叠蛋白反应下游的 COX7A2L/SCAF1 表达,从而促进呼吸链超复合物的形成并增加线粒体氧化磷酸化 (PubMed:31023583)。它与 DDIT3/CHOP 共同激活 IRS 调节因子 TRIB3 的转录,并通过调节内质网应激反应中 BBC3/PUMA 的表达来促进内质网应激诱导的神经元细胞死亡 (PubMed:15775988)。它可能与 UPR 转录调节因子 QRICH1 协同作用,调节内质网蛋白稳态,这对于细胞在内质网应激反应中的存活至关重要 (PubMed:33384352)。在无应激状态下,ATF4 的翻译水平较低,但它是正常代谢过程所必需的,例如胚胎晶状体形成、胎肝造血、骨骼发育和突触可塑性 (基于相似性)。ATF4 在 RPS6KA3/RSK2 磷酸化后,作为成骨细胞分化的调节因子:成骨细胞中的磷酸化增强了转录激活活性,促进了成骨细胞特异性基因的表达,并在转录后水平调节 I 型胶原蛋白 (骨基质的主要成分) 的合成 (PubMed:15109498)。ATF4 与成骨细胞中的 FOXO1 协同作用,通过抑制 β 细胞生成和减少胰岛素生成来调节葡萄糖稳态 (基于相似性)。ATF4 激活 SIRT4 的转录 (基于相似性)。ATF4 调节核心生物钟组分 PER2 和血清素转运蛋白 SLC6A4 的昼夜节律表达 (基于相似性)。以昼夜节律依赖的方式与 SLC6A4 和 PER2 启动子中的 cAMP 反应元件 (CRE) 结合,并周期性地激活这些基因的转录 (基于相似性)。主要作为细胞应激适应中的转录激活因子,但也可作为转录抑制因子:通过抑制转录来调节突触可塑性,从而抑制长期记忆的诱导和维持 (基于相似性)。通过与神经元中的 DISC1 相互作用来调节突触功能,DISC1 通过破坏 ATF4 二聚化和 DNA 结合来抑制 ATF4 转录因子的活性 (PubMed:31444471);(微生物感染) 与 HTLV-I 长末端重复序列中的 Tax 反应增强子元件结合。
亚细胞定位:细胞核;核斑;细胞质;细胞膜;细胞质、细胞骨架、微管组织中心、中心体
表达水平:
诱导:AFT4 的翻译水平受到多种应激的调控,例如内质网应激、氨基酸饥饿或氧化应激 (PubMed:27629041, PubMed:31023583, PubMed:33384352) 。在没有应激的情况下,核糖体在 AFT4 转录本上游的抑制性开放阅读框 (uORF) 处重新启动翻译,从而阻止 AFT4 的翻译。在应激和随后的 EIF2S1/eIF-2-α 磷酸化作用下,核糖体绕过抑制性 uORF,并在 AFT4 编码序列处重新启动翻译 (PubMed:27629041) 。
亚基:以同源二聚体和异源二聚体形式结合 DNA (PubMed:11018027)。异源二聚体;与 CEBPB 形成异源二聚体 (PubMed:11018027)。异源二聚体;与 DDIT3/CHOP 形成异源二聚体 (PubMed:18940792)。与 CEP290 相互作用 (通过 N 端区域)(PubMed:16682973)。与 NEK6、DAPK2 (异构体 2) 和 ZIPK/DAPK3 相互作用 (PubMed:20873783, PubMed:21408167)。通过其亮氨酸拉链结构域与 GABBR1 和 GABBR2 相互作用 (通过它们的 C 端)(基于相似性)。在成骨细胞中与 TXLNG 形成异二聚体 (PubMed:15911876)。通过其 DNA 结合域与 FOXO1 (C 端半部分) 相互作用;这种相互作用发生在成骨细胞中,并通过抑制β细胞增殖和减少胰岛素产生来调节葡萄糖稳态 (基于相似性)。与 SATB2 相互作用;这种相互作用导致这些转录因子的 DNA 结合和转录激活增强 (基于相似性)。与 ABRAXAS2 相互作用 (PubMed:22974638)。与 TRIB3 相互作用,抑制 ATF4 的转录激活活性 (基于相似性)。与 DISC1 相互作用;DISC1 通过破坏 ATF4 的二聚化和 DNA 结合来抑制 ATF4 转录因子活性 (基于相似性)。与 EP300/p300 相互作用; EP300/p300 通过阻止 ATF4 的泛素化来稳定 ATF4 并提高其转录活性,而这种作用独立于其催化活性 (PubMed:16219772)。
RRID
反应种属数据库
研究领域

Epigenetics and Nuclear Signaling

中文名
ATF4 抗体 (YA605)
文件资料
Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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ATF4 Antibody (YA605)
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HY-P80486
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