ELISA (recommended work dilution= 1: 80,000), Western Blotting (recommended work dilution= 1:1000) , (see image)Immunodetection Analysis: Representative blot from a previous lot. Lane 1, protein marker, Lane 2, recombinant protein IGF-1, Lane 3, SP2/0 lysate. The blot was probed with anti-IGF-1primary antibody (1:1,000). Proteins were visualized using a Donkey anti-mouse secondary antibody conjugated to IRDye 800CW detection system.
Immunogen was recombinant protein derived from human IGF-1. This antibody was produced from a hybridoma resulting from the fusion of a mouse myeloma with B cells obtained from a mouse immunized with the immunogen. The IgG fraction of tissue culture supernatant was purified by Protein G/A affinity chromatography.
Product is supplied as a powder obtained from lyophilization of purified antibody in PBS without preservatives. Reconstitute the antibody with sterile 1x PBS to a final concentration of 1 mg/ml.
Insulin-like growth factor 1 (IGF-1), also called somatomedin C, is a protein in humans encoded by the IGF1 gene. IGF-1 is a hormone similar in molecular structure to insulin. It plays an important role in childhood growth and continues to have anabolic effects in adults. IGF-1 is produced primarily by the liver as an endocrine hormone as well as in target tissues in a paracrine/autocrine fashion. Production is stimulated by growth hormone (GH) and can be retarded by under-nutrition, growth hormone insensitivity, lack of growth hormone receptors, or failures of the downstream signaling pathway post GH receptor including SHP2 and STAT5B. Approximately 98% of IGF-1 is always bound to one of 6 binding proteins (IGF-BP). IGFBP-3, the most abundant protein, accounts for 80% of all IGF binding. IGF-1 binds to IGFBP-3 in a 1:1 molar ratio.
The Mouse anti-human IGF-1 binds to the target derived from human recombinant protein at various concentrations. Cross reactivity with mouse and rat was not tested
Store at 4°C if intended for use within one month, otherwise, store at -20°C to -80°C. The lyophilized antibody is stable for at least 18 months after the date of receipt when stored at -20°C to -80°C. After reconstitution, it can be aliquoted and stored frozen at -20°C to -80°C in a manual defrost freezer for 6 months without detectable loss of activity. Upon reconstitution, the antibody can also be stored for 1 month at 4°C. Please avoid freeze-thaw cycles, as this will lower the activity of the antibody.
- HÃ¶ppener JW, et al. (1985). "The human gene encoding insulin-like growth factor I is located on chromosome 12". Hum. Genet. 69 (2): 15760.
- Jansen M, et al. (1983). "Sequence of cDNA encoding human insulin-like growth factor I precursor". Nature 306 (5943): 60911.