Apolipoprotein E/APOE4 Protein, Human (HEK293, His)

For research use only. We do not sell to patients.

Size	Price	Stock	Quantity
20 μg	$90	In-stock	Estimated Time of Arrival: December 31
50 μg	$200	In-stock	Estimated Time of Arrival: December 31
100 μg	$340	In-stock	Estimated Time of Arrival: December 31
> 100 μg		Get quote

* Please select Quantity before adding items.

Species	Human
Source	HEK293
Tag	N-His
Accession	AAB59397.1 (K19-H317)
Gene ID	348 [NCBI]
Molecular Construction	N-term His APOE4 (K19-H317) Accession # AAB59397.1 C-term
Synonyms	Apolipoprotein E; Apo-E; APOE; apolipo E; APOE4
Molecular Weight	30-40 kDa
Purity	Greater than 95% as determined by reducing SDS-PAGE.
Appearance	Lyophilized powder.
Formulation	Lyophilized from a 0.22 μm filtered solution of PBS, 2mM DTT, pH 7.4. Normally 8% trehalose is added as protectant before lyophilization.
Endotoxin Level	<1 EU/μg, determined by LAL method.
Reconstitution	It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH₂O.
Storage & Stability	Stored at -20°C for 2 years. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.
Shipping	Room temperature in continental US; may vary elsewhere.
Documentation	Select Batch: Data Sheet (231 KB) SDS (0 KB) COA (205 KB) Handling Instructions (2659 KB)

Apolipoprotein E/APOE4 Protein, Human (HEK293, His) Related Classifications

Help & FAQs

Do most proteins show cross-species activity?
Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration

Concentration _(start) × Volume _(start) = Concentration _(final) × Volume _(final)

This equation is commonly abbreviated as: C₁V₁ = C₂V₂

Specific Activity (Unit/mg) = 10⁶ ÷ Biological Activity (ED₅₀)

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