- ￥2800
- Proteintech
- CL488-80744
- 2025年10月09日
- IF/ICC
- Rabbit
- human, mouse, rat
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- 详细信息
- 文献和实验
- 技术资料
- 免疫原：
Recombinant human KEAP1 protein
- 亚型：
IgG
- 保存条件：
Store at -20°C. Avoid exposure to light. Stable for one year after shipment.
- 克隆性：
Recombinant
- 标记物：
CoraLite® Plus 488 Fluorescent Dye
- 适应物种：
human, mouse, rat
- 宿主：
Rabbit
- 应用范围：
IF/ICC
- 靶点：
KEAP1
- 抗体英文名：
CoraLite® Plus 488-conjugated KEAP1 Recombinant monoclonal antibody
- 抗体名：
CoraLite® Plus 488-conjugated KEAP1 Recombinant monoclonal antibody
- 规格：
100ul
经过测试的应用
| Positive IF/ICC detected in | HeLa cells |
推荐稀释比
| 应用 | 推荐稀释比 |
|---|---|
| Immunofluorescence (IF)/ICC | IF/ICC : 1:50-1:500 |
| It is recommended that this reagent should be titrated in each testing system to obtain optimal results. | |
| Sample-dependent, Check data in validation data gallery. | |
产品信息
CL488-80744 targets KEAP1 in IF/ICC applications and shows reactivity with human, mouse, rat samples.
| 经测试应用 | IF/ICC |
| 经测试反应性 | human, mouse, rat |
| 免疫原 |
CatNo: Ag0779 Product name: Recombinant human KEAP1 protein Source: e coli.-derived, PGEX-4T Tag: GST Domain: 325-624 aa of BC002930 Sequence: GRLIYTAGGYFRQSLSYLEAYNPSDGTWLRLADLQVPRSGLAGCVVGGLLYAVGGRNNSPDGNTDSSALDCYNPMTNQWSPCAPMSVPRNRIGVGVIDGHIYAVGGSHGCIHHNSVERYEPERDEWHLVAPMLTRRIGVGVAVLNRLLYAVGGFDGTNRLNSAECYYPERNEWRMITAMNTIRSGAGVCVLHNCIYAAGGYDGQDQLNSVERYDVETETWTFVAPMKHRRSALGITVHQGRIYVLGGYDGHTFLDSVECYDPDTDTWSEVTRMTSGRSGVGVAVTMEPCRKQIDQQNCTC |
| 宿主/亚型 | Rabbit / IgG |
| 抗体类别 | Recombinant |
| 产品类型 | Antibody |
| 全称 | kelch-like ECH-associated protein 1 |
| 别名 | KLHL19, KIAA0132, Kelch-like ECH-associated protein 1, KEAP 1, 5O18 |
| 计算分子量 | 624 aa, 70 kDa |
| 观测分子量 | 55~70 kDa |
| GenBank蛋白编号 | BC002930 |
| 基因名称 | KEAP1 |
| Gene ID (NCBI) | 9817 |
| RRID | AB_3673038 |
| 偶联类型 | CoraLite® Plus 488 Fluorescent Dye |
| 最大激发/发射波长 | 493 nm / 522 nm |
| 形式 | Liquid |
| 纯化方式 | Protein A purification |
| UNIPROT ID | Q14145 |
| 储存缓冲液 | PBS with 50% glycerol, 0.05% Proclin300, 0.5% BSA, pH 7.3. |
| 储存条件 | Store at -20°C. Avoid exposure to light. Stable for one year after shipment. Aliquoting is unnecessary for -20oC storage. |
背景介绍
Kelch-like ECH-associated protein 1 (KEAP1) is a negative regulator of nuclear factor erythroid 2-related factor 2 (Nrf2), a transcription factor governing the antioxidant response.
What is the molecular weight of KEAP1 protein? Are there any isoforms of KEAP1?
The molecular weight of KEAP1 protein is 70 kDa. The KEAP1 gene gives rise only to protein isoforms, but mutations of KEAP1 protein have been found in various cancer types.
What is the subcellular localization of KEAP1?
KEAP1 resides in the cytoplasm, where it binds to Nrf2, targeting it for degradation and preventing translocation of Nrf2 to the nucleus.
How does KEAP1 control Nrf2 levels? Is KEAP1 post-translationally modified?
KEAP1 is rich in reactive cysteine residues, whose thiol groups play a role in binding to CUL3 and the polyubiquitination of Nrf2, which leads to degradation of Nrf2 via the proteasome system. During oxidative stress, electrophiles and reactive oxygen species (ROS) modify the KEAP1 thiol groups, reducing the affinity of KEAP1 to CUL3 and the stabilization of Nrf2. Nrf2 then translocates to the nucleus, where it binds to the antioxidant responsive elements (AREs) and induces the expression of antioxidant proteins (PMID: 16354693).
How to measure oxidative stress using KEAP1 and Nrf2 proteins as a readout
Under basal conditions (unstressed cells), a detectable KEAP1 protein level is observed. Oxidative stress modifies KEAP1 protein activity by increasing the Nrf2 protein levels. This can be measured, for example, using western blotting (PMID: 27697860). KEAP1 protein levels are not altered by oxidative stress.
What is the role of the KEAP1-Nrf2 pathway in health and disease?
The KEAP-Nrf2 pathway plays a vital role in redox homeostasis and cryoprotection. Inhibition of KEAP1 activity leads to the activation of Nrf2 and increase the response to oxidative stress and anti-inflammatory effects (PMID: 29717933). The activation of Nrf2 can be beneficial in the case of metabolic diseases, such as diabetes, as well as neurodegenerative diseases such as Parkinson's and Alzheimer's diseases. However, the increased activation of Nrf2 is also known to promote tumor growth and metastasis. Mutations in both KEAP1 and Nrf2 were found in various solid tumor types.
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文献和实验细胞仪检测。或者继续 E1 步 DNA 染色。 E. DNA 染色（可选） 1. 将细胞重悬在 0.5 ml DNA 染色液中（例如 DRAQ5® #4084）。 2. 室温至少孵育 5 分钟。 3. 流式细胞仪进行分析。 ☀ 推荐的二抗： 抗兔： Anti-Rabbit IgG（H+L）， F（ab'）2 Fragment（Alexa Fluor® 488 Conjugate）#4412 Anti-Rabbit IgG（H+L）， F（ab
增殖及计数分析 02 细胞鉴定和免疫分型 荧光标记的CD抗体（Abs）被广泛用于流式细胞术进行细胞识别和免疫分型，至少有15种人类T细胞亚型被描述出来（例如，CD4+，CD8+等）。Incucyte®利用相同的原理，对标记方法进行改进： 将抗CD抗体结合到同型匹配的带有荧光标签的Fc区域靶向Fab片段，便可通过简单的一步混合来完成标记。在检测中使用一种非干扰性的背景荧光抑制染料，以改善488 nm的荧光信号，保护细胞的同时提供更灵活的分析方案。 03 细胞激活和分化 免疫
化钙，（问题所在），吹打均匀，孵育1~10min，测定荧光即Fmax值。 （4）加入EGTA，20μl（钙螯合剂），孵育1~10min，激发波长488nm测定荧光，即Fmin值。 这个过程中的氯化钙的作用如何， 请高人指点， 谢谢。 因为正常血浆中Ca2＋浓度是1mM，细胞外液的Ca2＋对细胞内Ca2＋有影响。加0.1%triton是增加膜通透性，使细胞外Ca2＋进入细胞内，作为最大值。加EGTA是为了螯合Ca2＋，作为最小值.生理环境中细胞内钙离子浓度远低于细胞外液（大约1：10000
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