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製品詳細
Synonyms
Apolipoprotein E, APOE, Apo-E
Source
Human APOE3, His Tag (APE-H5246) is expressed from human 293 cells (HEK293). It contains AA Lys 19 - His 317 (Accession # P02649-1 ).
Predicted N-terminus: Lys19
Request for sequenceMolecular Characterization
Other Tags and Version Biotin & Other Labeled Version
This protein carries a polyhistidine tag at the C-terminus.
The protein has a calculated MW of 36.1 kDa. The protein migrates as 35-40 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.
Endotoxin
Less than 0.01 EU per μg by the LAL method / rFC method.
Sterility
Negative
Purity
>90% as determined by SDS-PAGE.
Formulation
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.
Contact us for customized product form or formulation.
Reconstitution
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
Shipping and Storage
This product is shipped at ambient temperature.
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
- -20°C to -70°C for 12 months in lyophilized state;
- -70°C for 3 months under sterile conditions after reconstitution.
ACRO Quality Management System
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データ表示
SDS-PAGE
Human APOE3, His Tag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 90% (With Star Ribbon Pre-stained Protein Marker).
Bioactivity-BLI
Loaded Biotinylated Human TREM2, His,Avitag (Cat. No. TR2-H82E7) on SA Biosensor, can bind Human APOE3, His Tag (Cat. No. APE-H5246) with an affinity constant of 37.1 nM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
Protocol
Loaded Human TREM2, Fc Tag (Cat. No. TR2-H5254) on Protein A Biosensor, can bind Human APOE3, His Tag (Cat. No. APE-H5246) with an affinity constant of 66.1 nM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
Protocol
Loaded Human TREM2, Mouse IgG2a Fc Tag (Cat. No. TR2-H5256) on Protein A Biosensor, can bind Human APOE3, His Tag (Cat. No. APE-H5246) with an affinity constant of 9.53 nM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
Protocol
Bioactivity-Flow Cytometry
3e5 of HeLa cells were co-incubated with 50 nM Cy3-labeled LNPs-siRNA in the presence or absence of 1 μg/mL Human APOE3, His Tag (Cat. No. APE-H5246), washed and analyzed with FACS. PE signal was used to evaluate the expression of Cy3+ HeLa cells (Routinely tested).
Protocol
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よくある質問
- product
Can lyophilized proteins remain stable during room-temperature shipping or temporary room-temperature exposure?
In general, lyophilized proteins remain stable during room-temperature shipping or temporary exposure to room-temperature conditions.
Many ACROBiosystems recombinant proteins are supplied in lyophilized (freeze-dried) form. The lyophilization process effectively removes moisture from the product, helping reduce degradation-related reactions and improve protein stability during transportation and storage.
To evaluate the stability of lyophilized proteins under normal temperature conditions, ACROBiosystems conducted a stability study on 11 representative lyophilized protein products at 37°C. The study demonstrated that these proteins maintained good quality stability after storage at 37°C for approximately 20 days. Based on these validation results, temporary room-temperature exposure during shipping or handling is generally not expected to have a significant impact on product quality or downstream application performance.
To ensure optimal long-term stability, products should be stored according to the storage conditions specified in the product Certificate of Analysis (COA) upon receipt.
Supporting Document
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最新の進展
医薬品開発の進捗- 英語名：
Apolipoprotein E
- カテゴリ：
- 市販の医薬品数：
0 詳細
- 治験医薬品数：
3 詳細
- 最新の開発ステージ：
Phase 2 Clinical
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