Anti-Apolipoprotein E antibody (Biotin) (ab24274)

Overview

  • Product nameAnti-Apolipoprotein E antibody (Biotin)See all Apolipoprotein E primary antibodies ...
  • Description
    Goat polyclonal to Apolipoprotein E (Biotin)
  • ConjugationBiotin
  • Specificityab24274 binds to Apo E. No cross-reaction to Apo AI, Apo AII, Apo CI, Apo CII, and Apo CIII.
  • Tested applicationsICC/IF, ELISA, WBmore details
  • Species reactivity
    Reacts with: Human
  • Immunogen

    Purified human Apolipoprotein E from human plasma.

  • Positive control
    • Liver (Human), Brain (Human), Spleen (Human), Ovary (Human), Kidney (Human) This antibody gave a positive result when used in the following methanol fixed cell lines: HepG2.

Applications

Our Abpromise guarantee covers the use of ab24274 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
ICC/IF Use a concentration of 5 µg/ml.
ELISA 1/5000 - 1/40000.
WB 1/5000 - 1/40000. Predicted molecular weight: 36 kDa. Dilution optimised using Chromogenic detection.

Target

  • FunctionMediates 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.
  • Tissue specificityOccurs 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.
  • Involvement in diseaseDefects 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.
  • Sequence similaritiesBelongs to the apolipoprotein A1/A4/E family.
  • Post-translational
    modifications
    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.
  • Cellular localizationSecreted.
  • Information by UniProt
  • Database links
  • Alternative names
    • AD2 antibody
    • Alzheimer disease 2 antibody
    • Apo E antibody
    • Apo-E antibody
    • ApoE antibody
    • APOE_HUMAN antibody
    • APOEA antibody
    • Apolipoprotein E antibody
    • Apolipoprotein E3 antibody
    • ApolipoproteinE antibody
    • Apoprotein antibody
    • LDLCQ5 antibody
    • LPG antibody
    • MGC1571 antibody
    see all

Anti-Apolipoprotein E antibody (Biotin) images

  • ICC/IF image of ab24274 stained HepG2 cells. The cells were 100% methanol fixed (5 min) and then incubated in 1%BSA / 10% normal donkey serum / 0.3M glycine in 0.1% PBS-Tween for 1h to permeabilise the cells and block non-specific protein-protein interactions. The cells were then incubated with the antibody ab24274 at 5µg/ml overnight at +4°C. The secondary antibody (green) was DyLight® 488 donkey anti- goat (ab96931) IgG (H+L) used at a 1/250 dilution for 1h. Alexa Fluor® 594 WGA was used to label plasma membranes (red) at a 1/200 dilution for 1h. DAPI was used to stain the cell nuclei (blue) at a concentration of 1.43µM.

  • All lanes : Anti-Apolipoprotein E antibody (Biotin) (ab24274) at 1 µg/ml

    Lane 1 : Liver (Human) Tissue Lysate - adult normal tissue (ab29889)
    Lane 2 : Brain (Human) Tissue Lysate - adult normal tissue (ab29466)
    Lane 3 : Spleen (Human) Tissue Lysate - adult normal tissue (ab29699)
    Lane 4 : Ovary (Human) Tissue Lysate - adult normal tissue (ab30222)
    Lane 5 : Kidney (Human) Tissue Lysate - adult normal tissue (ab30203)

    Lysates/proteins at 10 µg per lane.

    Secondary
    Rabbit polyclonal to Goat IgG - H&L - Pre-Adsorbed (HRP) (ab65486) at 1/3000 dilution
    developed using the ECL technique

    Performed under reducing conditions.

    Predicted band size : 36 kDa
    Observed band size : 36 kDa


    Exposure time : 20 minutes

References for Anti-Apolipoprotein E antibody (Biotin) (ab24274)

ab24274 has not yet been referenced specifically in any publications.

Product Wall

Thank you for your inquiry. Ab24274 is a polyclonal antibody and it recognizes multiple epitopes on the Apo E molecule.  This antibody will recognize isoforms E2, E3 and E4.  I hope this informaiton helps. Please let me know if you have any othe...

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Please note: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"