(Recombinant Human Insulin-like Growth Factor 1 IGF1, Somatomedin)
Purity: >97% by SDS-PAGE and HPLC analyses
Source: Escherichia coli
The Insulin-like Growth factors (IGFs) are mitogenic polypeptide growth factors that stimulate the proliferation and survival of various cell types including muscle, bone, and cartilage tissue in vitro. They are predominantly produced in the liver. IGFs belong to the Insulin gene family and are similar by structure and function to insulin, but have a much higher growth-promoting activity. IGF1 expression is regulated by growth hormone, while IGF2 expression is influenced by placenta lactogen. Both IGF1 and IGF2 signal through the tyrosine kinase type I receptor (IGF IR). Mature IGFs are generated through proteolytic processing of inactive precursor proteins. Recombinant human IGF1 is a globular protein containing 70 amino acids, and 3 intra-molecular disulfide bonds..
rRtIGF1 General Information
Amino Acid Sequence (70 aa):
GPETLCGAEL VDALQFVCGP RGFYFNKPTG YGSSIRRAPQ TGIVDECCFR SCDLRRLEMY CAPLKPTKSA
Reconstitution:
The sample should be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0 mg/mL. Reconstituted solutions are stable for up to one week at 2-8°C. Stock solutions should be aliquoted and stored at -80°C. Further dilutions should be made in appropriate buffered solution.
Storage:
The lyophilized sample is stable at 2-8°C, but should be kept desiccated at -20°C for long term storage. The reconstituted sample can be apportioned into working aliquots and stored -80°C for maximal stability. Avoid repeated freeze/thaw cycles.
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