Recombinant Human IGF-2
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DescriptionInsulin-like Growth Factor 2 (IGF-2) is an important fetal growth hormone made by theca cells during gestation. IGF-2 engages the IGF-1 receptor (IGF1R) to mediate embryonic growth. IGF-2 also binds the sink IGF-2 receptor (IGF2R) leading to IGF-2 degradation.
Activity AssayHuman IGF-2 is fully biologically active when compared to standard. The activity is determined by the ability to induce mouse FDC-P1 cells proliferation and it is typically less than 15 ng/ml. This corresponds to an expected specific activity of 6.7 x 104 units/mg.
AA SequenceAYRPSETLCG GELVDTLQFV CGDRGFYFSR PASRVSRRSR GIVEECCFRS CDLALLETYC ATPAKSE
Alternative NamesInsulin-like Growth Factor 2, somatamedin A, IGF-II
|Molecular Weight||7.5 kDa|
|Purity||≥95% determined by reducing and non-reducing SDS-PAGE|
|Endotoxin Level||≤1.00 EU/μg as measured by kinetic LAL|
|Formulation||Lyophilized from a sterile (0.2 micron) filtered aqueous solution containing 0.1% Trifluoroacetic Acid (TFA)|
|Reconstitution||Centrifuge vial before opening. When reconstituting the product, gently pipet and wash down the sides of the vial to ensure full recovery of the protein into solution. It is recommended to reconstitute the lyophilized product with sterile water at 0.1 mg/ml, which can be further diluted into other aqueous solutions.|
|Stability and Storage||
12 months from date of receipt when stored at -20°C to -80°C as supplied. 1 month when stored at 4°C after reconstituting as directed. 3 months when stored at -20°C to -80°C after reconstituting as directed.