Recombinant Human Apolipoprotein E4

SKU:BHP11000347
Suppliers
ProSpec-Tany TechnoGene Ltd
ProSpec-Tany TechnoGene Ltd
Details Products
Overview
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RUO recombinant Apolipoprotein E4 (Human) protein for mechanistic studies and assay development. Supplied as a traceable protein input (E. coli; >95% (SDS-PAGE) purity; lyophilized; MW 34.4 kDa) for reproducible assay inputs.
Target LDLCQ5
Species Human
Options selector
Catalog no. Size
cyt-968-100UG 100 ug
cyt-968-500UG 500 ug
cyt-968-1MG 1 mg
Available Options

Select the variant that best fits your experiment. Availability and lead time may vary by option.

  • Options: Size (3) — 100 ug, 500 ug, 1 mg
  • Lead time: options listed as “in stock at manufacturer” typically ship in 5–7 business days; other statuses may take longer.
  • Storage: Lyophilized APOE4 although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution APOE4 should be stored at 4°C between 2-7 days and for future use below -18°C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Please prevent freeze-thaw cycles.
  • Shipping: cold-chain shipment (typically with ice packs).
  • Upon receipt: store at the recommended temperature as soon as possible.
  • Sales terms and conditions: Please review prior to ordering.
Field Specification
Mfr No cyt-968
Alternative Names Apolipoprotein E, APO-E, Alzheimer Disease 2 (APOE*E4-Associated, Late Onset), Apolipoprotein E3, LDLCQ5, LPG, AD2, APOE.
Biological Activity When Recombinant Human ApoE4 is immobilized at 1µg/mL (100 µl/well), the concentration of recombinant mouse VLDLR that produces 50% of the optimal binding response is found to be approximately 0.075 - 0.375 µg/mL.
Concentration 1 µg/mL
Expression System
  • E. coli
Form Sterile Filtered White lyophilized (freeze-dried) powder.
Formulation Lyophilized from a sterile (0.2µm) filtered aqueous solution containing 20mM PBS, pH7.8 and 5% trehalose.
Product Type
  • Proteins & Peptides
  • Cytokines and Growth Factors
  • Apolipoprotein & Lipid Protein
Protein Length 299
Protein Size 34.4 kDa
Purity Greater than 95% as determined by:<br>(a) Analysis by RP-HPLC.<br>(b) Analysis by SDS-PAGE.
Solubility It is recommended to reconstitute the lyophilized APOE4 in sterile 18M-cm H 2 O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
Source Escherichia Coli.
Species Human
Storage Lyophilized APOE4 although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution APOE4 should be stored at 4°C between 2-7 days and for future use below -18°C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Please prevent freeze-thaw cycles.
Target LDLCQ5

Recombinant Human Apolipoprotein E4 is supplied as a recombinant protein for in vitro research use.

Background

Apolipoprotein E (APOE) is a chylomicron lipoprotein which is essential for the metabolism of lipoproteins and lipid transport. The APOE gene has 3 alleles, designated APOE2, APOE3, and APOE4. The APOE allelic proteins differ by only one or two amino acids, however have different biological structures and functions. APOE3 is the most common and neutral allele. The APOE4 allele is linked with an increased risk for Alzheimer's Disease (AD) and coronary artery disease (CAD). The APOE4 protein morphology decreases the ability of APOE4 to clear beta-amyloid protein from the brain, resulting in AD progression. The APOE2 allele is linked with type III hyperlipoproteinemia, which is characterized by defects in the clearance of plasma lipoproteins, however APOE2 may have a protective effect against AD.

Product format

Provided as a recombinant protein suitable for in vitro workflows such as binding studies, screening, and assay development. Refer to the specifications table for expression format and molecular properties.

What is the purity of Recombinant Human Apolipoprotein E4 (Human)?
Greater than 95% as determined by:
(a) Analysis by RP-HPLC.
(b) Analysis by SDS-PAGE. BioHippo includes a Certificate of Analysis (CoA) confirming purity per lot with every order.
What buffer / formulation is this protein supplied in?
Supplied as: Lyophilized from a sterile (0.2µm) filtered aqueous solution containing 20mM PBS, pH7.8 and 5% trehalose. Reconstitute lyophilized material in sterile ultrapure water or the recommended buffer per the datasheet prior to use.
How should Recombinant Human Apolipoprotein E4 (Human) be stored?
Lyophilized APOE4 although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution APOE4 should be stored at 4°C between 2-7 days and for future use below -18°C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Please prevent freeze-thaw cycles. Prepare single-use aliquots after reconstitution to avoid repeated freeze–thaw cycles.
What expression system was used to produce this protein?
This recombinant protein was expressed in E. coli. The system was selected to achieve high yield, correct folding, and appropriate post-translational modifications.
Is this protein biologically active?
When Recombinant Human ApoE4 is immobilized at 1µg/mL (100 µl/well), the concentration of recombinant mouse VLDLR that produces 50% of the optimal binding response is found to be approximately 0.075 - 0.375 µg/mL. Refer to the product datasheet for recommended assay conditions and controls.
Is this protein approved for clinical or in vitro diagnostic use?
No. Supplied for Research Use Only (RUO) — not intended for therapeutic applications or in vitro diagnostic procedures.
Can I request a custom size, tag variant, or formulation?
Yes. BioHippo can accommodate custom requests including alternative sizes, His/GST/Fc tag variants, bulk quantities, and custom formulations. See the Customization & Add-ons tab or email support@biohippo.com.

Can’t Find What You’re Looking For? We can help you source the best match or customize a recombinant protein solution for your study. Options may include species (human/mouse/rat), protein region/domain (full-length vs fragment), tag or label (His/GST/FLAG/biotin/fluorescent), expression system (E. coli/HEK293/insect), purity grade, formulation (buffer, carrier-free, glycerol-free), activity/functional validation (binding or enzymatic assays), endotoxin level (low-endotoxin for cell-based work), mutants/variants (point mutations, isoforms), and bulk or custom packaging. Click Talk to a Scientist to submit a request form, email us at support@biohippo.com, or explore our Research Services for additional support. Our team will be in contact with you shortly.

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Experience the power of Celltrypse™, c-LEcta's innovative enzyme solution for gentle and efficient cell dissociation. Request your free sample and discover a superior alternative for your cell culture workflows.

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