Description: Recombinant Human IGF1 Protein is produced by E. coli expression system and the target gene encoding Gly49-Ala118 is expressed. Form: Lyophilized from a 0.2 μM filtered solution of 300mM NaAc, pH 6.5. Gene Symbol: IGF1 Alternative Names: IBP1; Insulin-like growth factor I; IGF-I; Mechano growth factor; MGF; Somatomedin-CEntrez Gene (Human): SwissProt (Human): Purity : Greater than 95% as determined by SEC-HPLC and reducing SDS-PAGE.Chemical Structure : GPETLCGAEL VDALQFVCGD RGFYFNKPTG YGSSSRRAPQ TGIVDECCFR SCDLRRLEMY CAPLKPAKSA Directions for Use : Always centrifuge tubes before opening. Do not mix by vortex or pipetting. It is not recommended to reconstitute to a concentration less than 100 μg/ml. Dissolve the lyophilized protein in 1X PBS. Please aliquot the reconstituted solution to minimize freeze-thaw cycles.Quality Control : Endotoxin: Less than 0.1 ng/μg (1 IEU/μg) as determined by LAL test.Storage/Stability : Lyophilized protein should be stored at -20°C, though stable at room temperature for 3 weeks. Reconstituted protein solution can be stored at 2-8°C for 2-7 days. Aliquots of reconstituted samples are stable at -20°C for 3 months.