The IGF-I/IGF-1 protein is structurally similar to insulin and has potent growth-promoting activity. As a physiological regulator, it stimulates glucose transport and glycogen synthesis in osteoblasts, exceeding the efficacy of insulin at lower concentrations. IGF-I/IGF-1 Protein, Mouse (N-His) is the recombinant mouse-derived IGF-I/IGF-1 protein, expressed by E. coli , with N-6*His labeled tag.