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Insulin-Like Growth Factor 1 Rat Recombinant ( IGF1 Rat )
DescriptionInsulin-Like Growth Factor I Rat Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 70 amino acids and having a molecular mass of 7687 Dalton. IGF-I is purified by proprietary chromatographic
Data sheet
| Formulation | The protein was lyophilized with a 0.2um filtered concentrated solution in 20mM PBS, pH 7.0. |
| Solubility | It is recommended to reconstitute the lyophilized IGF1 in sterile 18M-cm H2O not less than 100ug/ml, which can then be further diluted to other aqueous solutions. |
| Purity | Greater than 98.0% as determined by SDS-PAGE. |
| Description | Insulin-Like Growth Factor I 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. |
| Protein Background | The somatomedins, or insulin-like growth factors (IGFs), comprise a family of peptides that play important roles in mammalian growth and development. IGF1 mediates many of the growth-promoting effects of growth hormone (GH; MIM 139250). Early studies showed that growth hormone 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' (Daughaday et al., 1972). Three main somatomedins have been characterized: somatomedin C (IGF1), somatomedin A (IGF2; MIM 147470), and somatomedin B (MIM 193190) (Rotwein, 1986; Rosenfeld, 2003). |
| Expression host | Escherichia Coli. |
| Synonyms | Somatomedin C, IGF-I, IGFIA, IGF1. |
| Reagent Appearance | Sterile Filtered White lyophilized (freeze-dried) powder. |
| Stability | 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 (0.1% HSA or BSA).Please prevent freeze-thaw cycles. |
| Amino acid sequence | GPETLCGAEL VDALQFVCGP RGFYFNKPTG YGSSIRRAPQ TGIVDECCFR SCDLRRLEMY CAPLKPTKSA. |
| Biological Activity | 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. |
| References | 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 |