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Product Details
Synonyms
IGF2, C11orf43, FLJ22066, FLJ44734, IGF-II, PP9974
Source
Biotinylated Human IGF-II, Avitag,Fc Tag (IG2-H82F9) is expressed from human 293 cells (HEK293). It contains AA Ala 25 - Glu 91 (Accession # P01344-1).
Predicted N-terminus: Gly
Request for sequenceMolecular Characterization
Other Tags and Version Biotin & Other Labeled Version
This protein carries an Avi tag (Avitag™) at the N-terminus, followed by a human IgG1 Fc tag.
The protein has a calculated MW of 35.3 kDa. The protein migrates as 38-42kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.
Labeling
Biotinylation of this product is performed using Avitag™ technology. Briefly, the single lysine residue in the Avitag is enzymatically labeled with biotin.
Protein Ratio
Passed as determined by the SABA assay / HABA assay / binding ELISA.
Purity
>95% as determined by SDS-PAGE.
Formulation
Lyophilized from 0.22 μm filtered solution in Tris with Glycine, Arginine and NaCl, pH7.5 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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Performance Data
SDS-PAGE
Biotinylated Human IGF-II, Avitag,Fc Tag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95% (With Star Ribbon Pre-stained Protein Marker).
Bioactivity-ELISA
Immobilized Human IGFBP-3, His Tag (Cat. No. IG3-H52H9) at 5 μg/mL (100 μL/well) can bind Biotinylated Human IGF-II, Avitag,Fc Tag (Cat. No. IG2-H82F9) with a linear range of 1.2-39 ng/mL (QC tested).
Protocol
Bioactivity-SPR
Biotinylated Human IGF-II, Avitag,Fc Tag (Cat. No. IG2-H82F9) captured on Protein A Chip can bind Human IGF-II R Protein, His Tag (Cat. No. IGR-H53H3) with an affinity constant of 189 nM as determined in a SPR assay (Biacore 8K) (Routinely tested).
Protocol
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FAQ
- 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
Background
Recent Advances
Drug Development Progress- English Name：
Insulin-like growth factor II
- Category：
- Approved Drugs：
0 Details
- Drugs in Clinical Trials：
1 Details
- Highest Development Stage：
Phase 2 Clinical
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