ProSpec-IGF1 Rat

Somatomedin C, IGF-I, IGFIA, IGF1.

The somatomedins, or 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 , somatomedin A , and somatomedin B .

IGF-1 Rat Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 70 amino acids and having a molecular mass of 7.7kDa.
IGF-I is purified by proprietary chromatographic techniques.

Escherichia Coli.

Sterile Filtered White lyophilized powder.

The protein was lyophilized with a 0.2µm filtered concentrated solution in 20mM PBS, pH 7.0.

It is recommended to reconstitute the lyophilized IGF1 in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.

Lyophilized IGF-1 although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution IGFI 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 .
Please prevent freeze-thaw cycles.

Greater than 98.0% as determined by -PAGE.

GPETLCGAEL VDALQFVCGP RGFYFNKPTG YGSSIRRAPQ TGIVDECCFR SCDLRRLEMY CAPLKPTKSA.

The ED₅₀ as determined by a cell proliferation assay using FDC-P1 cells is less than 2.0ng/ml, corresponding to a specific activity of >500,000units/mg.

ProSpec’s products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Title:Evidence that androgen-independent stromal growth factor signals promote androgen-insensitive prostate cancer cell growth in vivo.
Publication: Published online before print March 17, 2009, doi: 10.1677/ERC-08-0219 Endocr Relat Cancer June 1, 2009 16 415-428 .
Link:http://erc.endocrinology-journals.org/content/16/2/415.full