Recombinant Human Insulin Like

Somatomedin C, IGF-I, IGFI, IGF1, IGF-IA MGF.

The somatomedins, IGFs, comprise a family of peptides that play important roles in mammalian growth and development. IGF1 mediates many of the growth-promoting effects of GH. Early studies showed that GH did not directly stimulate the incorporation of sulfate into cartilage, but rather acted through a serum factor, termed 'sulfation factor,' which later became known as 'somatomedin. Three main somatomedins have been characterized: somatomedin C (IGF1), somatomedin A (IGF2; MIM 147470), and somatomedin B.

IGF1 Human Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 70 amino acids and having a molecular mass of 7.6kDa.
IGF-1 is purified by proprietary chromatographic techniques.

Escherichia Coli. 

Sterile Filtered White lyophilized (freeze-dried) powder.

The protein was lyophilized from a concentrated solution in PBS, pH 7.0.

It is recommended to reconstitute the lyophilized IGF-1 in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.

Lyophilized IGF1 although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution IGF1 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.

Greater than 97.0% as determined by:
(a) Analysis by RP-HPLC.
(b) Analysis by SDS-PAGE.

GPETLCGAEL VDALQFVCGD RGFYFNKPTG Yg-s-sSRRAPQ TGIVDECCFR SCDLRRLEMY CAPLKPAKSA.

The biological activity was determined by the cell proliferation assay using serum free human MCF-7 cells in <2ng/ml, corresponding to a Specific Activity of >5.0 x 10⁵IU/mg.