重组Anti-Apolipoprotein E抗体[EP1373Y] (ab51015)
Key features and details
- Produced recombinantly (animal-free) for high batch-to-batch consistency and long term security of supply
- Rabbit monoclonal [EP1373Y] to Apolipoprotein E
- Suitable for: Flow Cyt (Intra), WB, IP, IHC-P, ICC/IF
- Knockout validated
- Reacts with: Human
Related conjugates and formulations
概述
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产品名称
Anti-Apolipoprotein E抗体[EP1373Y]
参阅全部 Apolipoprotein E 一抗 -
描述
兔单克隆抗体[EP1373Y] to Apolipoprotein E -
宿主
Rabbit -
经测试应用
适用于: Flow Cyt (Intra), WB, IP, IHC-P, ICC/IFmore details -
种属反应性
与反应: Human -
免疫原
Synthetic peptide. This information is proprietary to Abcam and/or its suppliers.
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阳性对照
- WB: HeLa cell lysate; Human serum, fetal liver and liver cancer tissue lysate. IHC-P: Human liver and fetal liver tissues. ICC/IF: HepG2 cells. Flow Cyt (intra): 293T cells. IP: Human fetal liver tissue lysate.
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常规说明
This product is a recombinant monoclonal antibody, which offers several advantages including:
- - High batch-to-batch consistency and reproducibility
- - Improved sensitivity and specificity
- - Long-term security of supply
- - Animal-free production
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.
Mouse, Rat: We have preliminary internal testing data to indicate this antibody may not react with these species. Please contact us for more information.
性能
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形式
Liquid -
存放说明
Shipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C. Stable for 12 months at -20°C. -
存储溶液
pH: 7.20
Preservative: 0.01% Sodium azide
Constituents: 59% PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA -
Concentration information loading...
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纯度
Protein A purified -
克隆
单克隆 -
克隆编号
EP1373Y -
同种型
IgG -
研究领域
相关产品
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Alternative Versions
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Compatible Secondaries
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Isotype control
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Recombinant Protein
应用
The Abpromise guarantee
Abpromise™承诺保证使用ab51015于以下的经测试应用
“应用说明”部分 下显示的仅为推荐的起始稀释度;实际最佳的稀释度/浓度应由使用者检定。
应用 | Ab评论 | 说明 |
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Flow Cyt (Intra) |
1/20.
For unpurified use at 1/30. ab172730 - Rabbit monoclonal IgG, is suitable for use as an isotype control with this antibody. |
|
WB |
1/1000. Detects a band of approximately 36 kDa (predicted molecular weight: 36 kDa).
For unpurified use at 1/20000. |
|
IP |
1/30.
For unpurified use at 1/70. |
|
IHC-P |
1/100 - 1/250. Perform heat mediated antigen retrieval with Tris/EDTA buffer pH 9.0 before commencing with IHC staining protocol.
|
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ICC/IF |
1/50.
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说明 |
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Flow Cyt (Intra)
1/20. For unpurified use at 1/30. ab172730 - Rabbit monoclonal IgG, is suitable for use as an isotype control with this antibody. |
WB
1/1000. Detects a band of approximately 36 kDa (predicted molecular weight: 36 kDa). For unpurified use at 1/20000. |
IP
1/30. For unpurified use at 1/70. |
IHC-P
1/100 - 1/250. Perform heat mediated antigen retrieval with Tris/EDTA buffer pH 9.0 before commencing with IHC staining protocol. |
ICC/IF
1/50. |
靶标
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功能
Mediates the binding, internalization, and catabolism of lipoprotein particles. It can serve as a ligand for the LDL (apo B/E) receptor and for the specific apo-E receptor (chylomicron remnant) of hepatic tissues. -
组织特异性
Occurs in all lipoprotein fractions in plasma. It constitutes 10-20% of very low density lipoproteins (VLDL) and 1-2% of high density lipoproteins (HDL). APOE is produced in most organs. Significant quantities are produced in liver, brain, spleen, lung, adrenal, ovary, kidney and muscle. -
疾病相关
Defects in APOE are a cause of hyperlipoproteinemia type 3 (HLPP3) [MIM:107741]; also known as familial dysbetalipoproteinemia. Individuals with HLPP3 are clinically characterized by xanthomas, yellowish lipid deposits in the palmar crease, or less specific on tendons and on elbows. The disorder rarely manifests before the third decade in men. In women, it is usually expressed only after the menopause. The vast majority of the patients are homozygous for APOE*2 alleles. More severe cases of HLPP3 have also been observed in individuals heterozygous for rare APOE variants. The influence of APOE on lipid levels is often suggested to have major implications for the risk of coronary artery disease (CAD). Individuals carrying the common APOE*4 variant are at higher risk of CAD.
Genetic variations in APOE are associated with Alzheimer disease type 2 (AD2) [MIM:104310]. It is a late-onset neurodegenerative disorder characterized by progressive dementia, loss of cognitive abilities, and deposition of fibrillar amyloid proteins as intraneuronal neurofibrillary tangles, extracellular amyloid plaques and vascular amyloid deposits. The major constituent of these plaques is the neurotoxic amyloid-beta-APP 40-42 peptide (s), derived proteolytically from the transmembrane precursor protein APP by sequential secretase processing. The cytotoxic C-terminal fragments (CTFs) and the caspase-cleaved products such as C31 derived from APP, are also implicated in neuronal death. Note=The APOE*4 allele is genetically associated with the common late onset familial and sporadic forms of Alzheimer disease. Risk for AD increased from 20% to 90% and mean age at onset decreased from 84 to 68 years with increasing number of APOE*4 alleles in 42 families with late onset AD. Thus APOE*4 gene dose is a major risk factor for late onset AD and, in these families, homozygosity for APOE*4 was virtually sufficient to cause AD by age 80. The mechanism by which APOE*4 participates in pathogenesis is not known.
Defects in APOE are a cause of sea-blue histiocyte disease (SBHD) [MIM:269600]; also known as sea-blue histiocytosis. This disorder is characterized by splenomegaly, mild thrombocytopenia and, in the bone marrow, numerous histiocytes containing cytoplasmic granules which stain bright blue with the usual hematologic stains. The syndrome is the consequence of an inherited metabolic defect analogous to Gaucher disease and other sphingolipidoses.
Defects in APOE are a cause of lipoprotein glomerulopathy (LPG) [MIM:611771]. LPG is an uncommon kidney disease characterized by proteinuria, progressive kidney failure, and distinctive lipoprotein thrombi in glomerular capillaries. It mainly affects people of Japanese and Chinese origin. The disorder has rarely been described in Caucasians. -
序列相似性
Belongs to the apolipoprotein A1/A4/E family. -
翻译后修饰
Synthesized with the sialic acid attached by O-glycosidic linkage and is subsequently desialylated in plasma. O-glycosylated with core 1 or possibly core 8 glycans. Thr-307 is a minor glycosylation site compared to Ser-308.
Glycated in plasma VLDL of normal subjects, and of hyperglycemic diabetic patients at a higher level (2-3 fold).
Phosphorylation sites are present in the extracelllular medium. -
细胞定位
Secreted. - Information by UniProt
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数据库链接
- Entrez Gene: 348 Human
- Omim: 107741 Human
- SwissProt: P02649 Human
- Unigene: 654439 Human
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别名
- AD2 antibody
- Apo-E antibody
- APOE antibody
see all
图片
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All lanes : Anti-Apolipoprotein E antibody [EP1373Y] (ab51015) at 1/1000 dilution
Lane 1 : Wild-type HepG2 cell lysate
Lane 2 : APOE knockout HepG2 cell lysate
Lane 3 : HepG2 cell lysate
Lane 4 : HeLa cell lysate
Lysates/proteins at 20 µg per lane.
Performed under reducing conditions.
Predicted band size: 36 kDa
Observed band size: 32-35 kDa why is the actual band size different from the predicted?False colour image of Western blot: Anti-Apolipoprotein E antibody [EP1373Y] staining at 1/1000 dilution, shown in green; Mouse anti-Alpha Tubulin [DM1A] (ab7291) loading control staining at 1/20000 dilution, shown in red. In Western blot, ab51015 was shown to bind specifically to Apolipoprotein E. A band was observed at 32-35 kDa in wild-type HepG2 cell lysates with no signal observed at this size in APOE knockout cell line ab280758 (knockout cell lysate ab282991). To generate this image, wild-type and APOE knockout HepG2 cell lysates were analysed. First, samples were run on an SDS-PAGE gel then transferred onto a nitrocellulose membrane. Membranes were blocked in 5 % milk in TBS-0.1 % Tween® 20 (TBS-T) before incubation with primary antibodies overnight at 4 °C. Blots were washed four times in TBS-T, incubated with secondary antibodies for 1 h at room temperature, washed again four times then imaged. Secondary antibodies used were Goat anti-Rabbit IgG H&L 800CW and Goat anti-Mouse IgG H&L 680RD at 1/20000 dilution.
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Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of human fetal liver tissue labelling Apolipoprotein with unpurified ab51015 at 1/100.
Perform heat mediated antigen retrieval with Tris/EDTA buffer pH 9.0 before commencing with IHC staining protocol.
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Immunocytochemistry/Immunofluorescence analysis of HepG2 cells labelling Apolipoprotein E with purified ab51015 at 1/50. Cells were fixed with 4% paraformaldehyde and permeabilized with 0.1% Triton X-100. An Alexa Fluor® 488-conjugated goat anti-rabbit IgG (1/500) was used as the secondary antibody. DAPI (blue) was used as the nuclear counterstain.
Control: primary antibody (1/100) and secondary antibody, ab150120, an Alexa Fluor® 594-conjugated goat anti-mouse IgG (1/500).
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Intracellular Flow Cytometry analysis of 293T cells labelling Apolipoprotein E with purified ab51015 at 1/20 (red). Cells were fixed with 2% paraformaldehyde. A FITC-conjugated goat anti-rabbit IgG (1/150) was used as the secondary antibody. Black - Isotype control, rabbit monoclonal IgG. Blue - Unlabelled control, cells without incubation with primary and secondary antibodies.
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Anti-Apolipoprotein E antibody [EP1373Y] (ab51015) at 1/1000 dilution (purified) + Human fetal liver tissue lysate at 20 µg
Secondary
Peroxidase-conjugated goat anti-rabbit IgG (H+L) at 1/1000 dilution
Predicted band size: 36 kDa
Observed band size: 36 kDaBlocking buffer and concentration: 5% NFDM/TBST.
Diluting buffer and concentration: 5% NFDM /TBST.
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Anti-Apolipoprotein E antibody [EP1373Y] (ab51015) at 1/10000 dilution (purified) + Human serum at 20 µg
Secondary
Peroxidase-conjugated goat anti-rabbit IgG (H+L) at 1/1000 dilution
Predicted band size: 36 kDa
Observed band size: 36 kDaBlocking buffer and concentration: 5% NFDM/TBST.
Diluting buffer and concentration: 5% NFDM /TBST.
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Anti-Apolipoprotein E antibody [EP1373Y] (ab51015) at 1/10000 dilution (unpurified) + Human serum at 10 µg
Secondary
Goat anti-rabbit HRP labelled at 1/2000 dilution
Predicted band size: 36 kDa
Observed band size: 36 kDa -
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of human liver tissue labelling Apolipoprotein E with purified ab51015 at 1/100. Heat mediated antigen retrieval was performed using Tris/EDTA buffer pH 9. ab97051, a HRP-conjugated goat anti-rabbit IgG (H+L) was used as the secondary antibody. Negative control using PBS instead of primary antibody. Counterstained with hematoxylin.
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ab51015 (purified) at 1/30 immunoprecipitating Apolipoprotein in human fetal liver tissue lysate. For western blotting, a peroxidase-conjugated goat anti-rabbit IgG (H+L) was used as the secondary antibody (1/1000).
Blocking buffer and concentration: 5% NFDM/TBST.
Diluting buffer and concentration: 5% NFDM /TBST.
实验方案
To our knowledge, customised protocols are not required for this product. Please try the standard protocols listed below and let us know how you get on.
数据表及文件
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SDS download
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Datasheet download
文献 (2)
ab51015 被引用在 2 文献中.
- Lee EG et al. Redefining transcriptional regulation of the APOE gene and its association with Alzheimer's disease. PLoS One 15:e0227667 (2020). PubMed: 31978088
- Liu L et al. The Glia-Neuron Lactate Shuttle and Elevated ROS Promote Lipid Synthesis in Neurons and Lipid Droplet Accumulation in Glia via APOE/D. Cell Metab 26:719-737.e6 (2017). PubMed: 28965825