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Catalog Number | orb107739 |
---|---|
Category | Proteins |
Description | The Insulin-like Growth factors (IGFs) are mitogenic polypeptide growth factors that stimulate the proliferation and survival ofvarious cell types including muscle, bone, and cartilage tissue in vitro. The liver predominantly produces iGFs, although a varietyof tissues produce the IGFs at distinctive times. The IGFs belong to the Insulin gene family, which also contains insulin andrelaxin. The IGFs are similar by structure and function to insulin, but have a much higher growth-promoting activity than insulin.IGF-II expression is influenced by placenta lactogen, while IGF-I expression is regulated by growth hormone. Both IGF-I andIGF-II signal through the tyrosine kinase type I receptor (IGF-IR), but, IGF-II can also signal through the IGF-II/Mannose-6-phosphate receptor. Proteolytic processing of inactive precursor proteins, which contain N-terminal and C-terminal propeptideregions, generates mature IGFs. Recombinant human IGF-I and IGF-II are globular proteins containing 70 and 67 amino acids,respectively, and 3 intra-molecular disulfide bonds. |
Tested applications | HPLC, SDS-PAGE |
Purity | > 97 % by SDS-PAGE and HPLC analyses |
Conjugation | Unconjugated |
MW | 7.7 kDa |
Target | IGF-1 |
Protein Sequence | GPETLCGAEL VDALQFVCGD RGFYFNKPTG YGSSSRRAPQ TGIVDECCFR SCDLRRLEMYCAPLKPAKSA |
Biological Origin | E.coli |
Storage | Store at 4°C for up to two weeks. For long term storage, aliquot and store at -20°C, avoid freeze/thaw cycles. |
Buffer/Preservatives | Lyophilized from a 0.2 μm filtered concentrated solution in PBS, pH 7.2. |
Alternative names | Human Insulin-like Growth Factor-I protein Read more... |
Note | For research use only |
Expiration Date | 6 months from date of receipt. |
SDS-PAGE analysis of Human IGF-1 protein
Unconjugated | |
95% | |
129.3 kDa | |
Human IGF-I R, Fc Tag (orb1496214) is expressed from human 293 cells (HEK293). It contains AA Glu 31 - Asn 932 (Accession # P08069-1). |
Unconjugated | |
Greater than 95% as determined by reducing SDS-PAGE. | |
9.1 KDa | |
E. Coli |
Unconjugated | |
The purity of the protein is greater than 95% as determined by SDS-PAGE and Coomassie blue staining. | |
The protein has a predicted molecular mass of 33.8 kDa after removal of the signal peptide. The apparent molecular mass of hFc-mIGF1 is approximately 35-55 kDa due to glycosylation. | |
Mammalian |
Greater than 90% as determined by SDS-PAGE. | |
9.7 kDa | |
Yeast |
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