Invitrogen

APOE Polyclonal Antibody

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This Antibody was verified by Relative expression to ensure that the antibody binds to the antigen stated.

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APOE Antibody in Immunocytochemistry (ICC/IF) — Immunofluorescence analysis of APOE was performed using 70% confluent log phase Hep G2 cells. The cells were fixed with 4% paraformaldehyde for 10 minutes, permeabilized with 0.1% Triton™ X-100 for 15 minutes, and blocked with 2% BSA for 1 hour at room temperature. The cells were labeled with APOE Goat Polyclonal Antibody (Product # PA5-18361) at 5 µg/mL in 0.1% BSA, incubated at 4 degree Celsius overnight and then labeled with Rabbit anti-Goat IgG (H+L) Cross-Adsorbed Secondary Antibody, Alexa Fluor 488 (Product # A-11078) at a dilution of 1:2000 for 45 minutes at room temperature (Panel a: green). Nuclei (Panel b: blue) were stained with ProLong™ Diamond Antifade Mountant with DAPI (Product # P36962). F-actin (Panel c: red) was stained with Rhodamine Phalloidin (Product # R415). Panel d represents the merged image showing cytoplasmic localization. Panel e represents control cells with no primary antibody to assess background. The images were captured at 60X magnification.

APOE Antibody in Immunohistochemistry (IHC) — Immunohistochemical staining of paraffin embedded of Human Liver using Product # PA5-18361 at a concentration of 2.5 µg/mL. The tissue was processed by steamed antigen retrieval with citrate buffer pH 6 and stained with AP.

APOE Antibody in Western Blot (WB) — Western blot was performed using Anti-APOE Polyclonal Antibody (Product # PA5-18361) and a 36 kDa band corresponding to APOE was observed in Hep G2 and Caco-2 with PTI treatment but was absent in A-431 and Daudi which are reported to be negative. Whole cell extracts (30 µg lysate) of Hep G2 (Lane 1), Hep G2 treated with Protein Transport Inhibitor (PTI; 1x for 4 hours) (Lane 2), Caco-2 (Lane 3), Caco-2 treated with Protein Transport Inhibitor (PTI; 1x for 4 hours) (Lane 4), A-431 (Lane 5), A-431 treated with Protein Transport Inhibitor (PTI; 1x for 4 hours) (Lane 6), Daudi (Lane 7) and Daudi treated with Protein Transport Inhibitor (1x for 4 hours) (Lane 8) were electrophoresed using Novex® NuPAGE® 4-12 % Bis-Tris gel (Product # NP0322BOX). Resolved proteins were then transferred onto a nitrocellulose membrane (Product # IB23001) by iBlot® 2 Dry Blotting System (Product # IB21001). The blot was probed with the primary antibody (0.1 µg/mL) and detected by chemiluminescence with Rabbit anti-Goat IgG (H+L), Superclonal™ Recombinant Secondary Antibody, HRP (Product # A27014, 1:4000 dilution) using the iBright FL 1000 (Product # A32752). Chemiluminescent detection was performed using Novex® ECL Chemiluminescent Substrate Reagent Kit (Product # WP20005).

APOE Antibody in Western Blot (WB) — Western blot analysis of APOE by a APOE monoclonal antibody (Product # PA5-18361) at a concentration of 2 µg/mL. Human Brain (Hippocampus) lysate (35µg protein in RIPA buffer). Detected by chemiluminescence.

APOE Antibody in Western Blot (WB) — Western Blot staining of Human Brain lysate using Product # PA5-18361 at a concentration of 0.1 µg/mL, the primary antibody incubation was 1 hour and the detection method was chemiluminescence.

APOE Antibody — Antibody specificity was demonstrated by detection of differential basal expression of the target across cell lysates tested owing to their inherent genetic constitution. Relative expression of APOE was observed in Hep G2 and Caco-2 as compared to A-431 and Daudi using Anti-APOE Monoclonal Antibody (E6D7) (Product # PA5-18361) in Western Blot. {RE}

Product Details

PA5-18361

Applications	Tested Dilution	Publications
Western Blot (WB)	0.05-0.1 µg/mL	-

Product Specifications
Species Reactivity	Human
Host/Isotype	Goat / IgG
Class	Polyclonal
Type	Antibody
Immunogen	Synthetic peptide sequence (VGTSAAPVPSDNH) corresponding to the C-terminus amino acids of APOE View immunogen
Conjugate	Unconjugated
Form	Liquid
Concentration	0.5 mg/mL
Purification	Antigen affinity chromatography
Storage buffer	TBS, pH 7.3, with 0.5% BSA
Contains	0.02% sodium azide
Storage conditions	-20° C, Avoid Freeze/Thaw Cycles
RRID	AB_10979861

Target Information

Apo E (Apolipoprotein E) plays an important role in the metabolism of lipids in the plasma, and is also is a constituent of various plasma lipoprotein-lipid particles. The protein is synthesized in liver, brain, spleen, and the kidney, and concentrations are high in interstitial fluids, where it plays a role in distributing cholesterol from cells where cholesterol is in excess to cells which require cholesterol. Apo E also plays an important role in the formation of very low density lipoprotein and chylomicrons. The Apo E gene is located on chromosome 19 at position 19q13. 2.

For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.

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Bioinformatics

Protein Aliases: Apo-E; ApoE4; Apolipoprotein; Apolipoprotein E; apolipoprotein E3; apolipoprotein E4; Apoprotein; B2G1; BG; MGC1571

Gene Aliases: AD2; APO-E; APOE; LDLCQ5; LPG

UniProt ID: (Human) P02649

Entrez Gene ID: (Human) 348

Molecular Function: apolipoprotein

response to reactive oxygen species retinoid metabolic process negative regulation of endothelial cell proliferation response to dietary excess triglyceride metabolic process cholesterol catabolic process cellular calcium ion homeostasis receptor-mediated endocytosis cytoskeleton organization G-protein coupled receptor signaling pathway nitric oxide mediated signal transduction synaptic transmission, cholinergic cholesterol metabolic process regulation of gene expression negative regulation of platelet activation positive regulation of cholesterol esterification positive regulation of cholesterol efflux long-chain fatty acid transport protein import virion assembly triglyceride catabolic process cGMP-mediated signaling negative regulation of blood coagulation regulation of axon extension positive regulation of cGMP biosynthetic process neuron projection regeneration regulation of Cdc42 protein signal transduction positive regulation of low-density lipoprotein particle receptor catabolic process cholesterol efflux phospholipid efflux very-low-density lipoprotein particle remodeling low-density lipoprotein particle remodeling high-density lipoprotein particle remodeling high-density lipoprotein particle assembly chylomicron remnant clearance high-density lipoprotein particle clearance very-low-density lipoprotein particle clearance lipoprotein metabolic process lipoprotein biosynthetic process lipoprotein catabolic process vasodilation cholesterol homeostasis negative regulation of MAP kinase activity negative regulation of neuron apoptotic process negative regulation of blood vessel endothelial cell migration reverse cholesterol transport positive regulation by host of viral process negative regulation of cholesterol biosynthetic process positive regulation of lipid biosynthetic process intracellular transport regulation of neuronal synaptic plasticity artery morphogenesis negative regulation of inflammatory response positive regulation of nitric-oxide synthase activity positive regulation of membrane protein ectodomain proteolysis maintenance of location in cell fatty acid homeostasis positive regulation of dendritic spine development negative regulation of canonical Wnt signaling pathway AMPA glutamate receptor clustering NMDA glutamate receptor clustering cellular oxidant detoxification regulation of beta-amyloid clearance negative regulation of neuron death positive regulation of postsynaptic membrane organization negative regulation of presynaptic membrane organization negative regulation of beta-amyloid formation positive regulation of dendritic spine maintenance positive regulation of phospholipid efflux positive regulation of lipid transport across blood brain barrier

Process(es)

beta-amyloid binding lipid transporter activity protein binding phospholipid binding heparin binding lipid binding cholesterol binding antioxidant activity cholesterol transporter activity identical protein binding protein homodimerization activity metal chelating activity tau protein binding low-density lipoprotein particle receptor binding phosphatidylcholine-sterol O-acyltransferase activator activity very-low-density lipoprotein particle receptor binding lipoprotein particle binding