Active Recombinant Human IGF1

• Cat.No.: IGF1-526H
• Product Overview: Recombinant Human IGF1 produced in E. coli is approximately 7.7 kDa, a single non-glycosylated polypeptide chain containing 70 amino acids. 15N isotope Labeled.

Specification

• Description: 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. The liver predominantly produces iGFs, although a variety of tissues produce the IGFs at distinctive times. The IGFs belong to the Insulin gene family, which also contains insulin and relaxin. 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 and IGF-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 propeptide regions, 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.
• Source: E. coli
• Species: Human
• Form: Lyophilized from a 0.2 μm filtered concentrated solution in PBS, pH 7.2.
• Bio-activity: Fully biologically active when compared to standard. The ED50 determined by a cell proliferation assay using serum free human MCF-7 cells is less than 2 ng/ml, corresponding to a specific activity of >5.0 × 10^5 IU/mg.
• Molecular Mass: 7.7 kDa
• AA Sequence: GPETLCGAEL VDALQFVCGD RGFYFNKPTG YGSSSRRAPQ TGIVDECCFR SCDLRRLEMY CAPLKPAKSA
• Endotoxin: Less than 1 EU/μg of rHuIGF-I, 15N as determined by LAL method.
• Purity: >97% by SDS-PAGE and HPLC analyses.
• Usage: This material is for research, laboratory or further evaluation purposes. NOT FOR HUMAN USE.
• Storage: This lyophilized preparation is stable at 2-8 centigrade, but should be kept at -20 centigrade for long term storage, preferably desiccated. Upon reconstitution, the preparation is stable for up to one week at 2-8 centigrade. For maximal stability, apportion the reconstituted preparation into working aliquots and store at -20 centigrade to -70 centigrade. Avoid repeated freeze/thaw cycles.
• Reconstitution: We recommend that this vial be briefy centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤ -20 centigrade. Further dilutions should be made in appropriate buffered solutions.

Gene Information

• Gene Name: IGF1 insulin-like growth factor 1 (somatomedin C) [ Homo sapiens ]
• Official Symbol: IGF1
• Synonyms: IGF1; insulin-like growth factor 1 (somatomedin C); insulin-like growth factor 1; IGF1A; MGF; IGF-IA; IGF-IB; somatomedin-C; mechano growth factor; insulin-like growth factor I; insulin-like growth factor IA; insulin-like growth factor IB; IGFI; IGF-I
• Gene ID: 3479
• mRNA Refseq: NM_000618
• Protein Refseq: NP_000609
• MIM: 147440
• UniProt ID: P05019
• Chromosome Location: 12q23.2
• Pathway: Adipogenesis, organism-specific biosystem; Aldosterone-regulated sodium reabsorption, organism-specific biosystem; Aldosterone-regulated sodium reabsorption, conserved biosystem; Androgen Receptor Signaling Pathway, organism-specific biosystem; Apoptosis, organism-specific biosystem; Diabetes pathways, organism-specific biosystem; Dilated cardiomyopathy, organism-specific biosystem
• Function: growth factor activity; hormone activity; hormone activity; insulin receptor binding; insulin-like growth factor receptor binding; integrin binding; protein binding