catalog number :
MBS692296
products type :
Recombinant Protein
products full name :
Human IGF-1 LR3
products short name :
[IGF-1 LR3]
products name syn :
[Long R3 IGF-I; Insulin-like Growth Factor-I; Somatamedin C; IGF-IA]
other names :
[Insulin-like growth factor I; Insulin-like growth factor I; insulin-like growth factor I; insulin like growth factor 1; Mechano growth factor; MGF; Somatomedin-C]
products gene name :
[IGF-1 LR3]
other gene names :
[IGF1; IGF1; MGF; IGFI; IGF-I; IBP1; IGF-I; MGF]
sequence :
MFPAMPLSSL FVNGPRTLCG AELVDALQFV CGDRGFYFNK PTGYGS SSRR APQTGIVDEC CFRSCDLRRL EMYCAPLKPA KSA
purity :
> 98% by SDS-PAGE & HPLC analyses
other info2 :
Biological Activity: The ED50 was determined by a cell proliferation assay using FDC-P1 cells is = 5 x 105 units/mg.
products categories :
Cytokines & Growth Factors
products description :
The IGFs are mitogenic, polypeptide growth factors that stimulate the proliferation and survival of various cell types, including muscle, bone, and cartilage tissue in vitro. IGFs are predominantly produced by the liver, 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 to insulin by structure and function, 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. Mature IGFs are generated by proteolytic processing of inactive precursor proteins, which contain N-terminal and C-terminal propeptide regions. Recombinant human IGF-I and IGF-II are globular proteins containing 70 and 67 amino acids, respectively, and 3 intra-molecular disulfide bonds. IGF-I LR3 is a recombinant analog of human IGF-I comprised of the complete IGF-I sequence, with an Arginine substitution for the third position Glutamic acid, and a 13 amino acid length N terminus peptide extension. Specifically engineered for higher biological potency in vitro, IGF-I LR3 has an increased half-life and a binding aversion to native proteins within the body that make it ideal for both research and large-scale culturing. Recombinant Human IGF-I LR3 is a 9.1 kDa, single, non-glycosylated polypeptide chain containing 83 amino acid residues.
ncbi mol weight :
17,762 Da
ncbi pathways :
AMPK Signaling Pathway (989139); AMPK Signaling Pathway (992181); Adipogenesis Pathway (198832); Aldosterone-regulated Sodium Reabsorption Pathway (130626); Aldosterone-regulated Sodium Reabsorption Pathway (130590); Apoptosis Pathway (198797); Breast Cancer Pathway (1435207); Breast Cancer Pathway (1435182); Cardiac Hypertrophic Response Pathway (1458291); Cardiac Progenitor Differentiation Pathway (712094)
ncbi summary :
The protein encoded by this gene is similar to insulin in function and structure and is a member of a family of proteins involved in mediating growth and development. The encoded protein is processed from a precursor, bound by a specific receptor, and secreted. Defects in this gene are a cause of insulin-like growth factor I deficiency. Alternative splicing results in multiple transcript variants encoding different isoforms that may undergo similar processing to generate mature protein. [provided by RefSeq, Sep 2015]
uniprot summary :
IGF1: The insulin-like growth factors, isolated from plasma, are structurally and functionally related to insulin but have a much higher growth-promoting activity. May be a physiological regulator of [1-14C]-2-deoxy-D-glucose (2DG) transport and glycogen synthesis in osteoblasts. Stimulates glucose transport in rat bone-derived osteoblastic (PyMS) cells and is effective at much lower concentrations than insulin, not only regarding glycogen and DNA synthesis but also with regard to enhancing glucose uptake. Defects in IGF1 are the cause of insulin-like growth factor I deficiency (IGF1 deficiency). IGF1 deficiency is an autosomal recessive disorder characterized by growth retardation, sensorineural deafness and mental retardation. Belongs to the insulin family. 3 isoforms of the human protein are produced by alternative splicing. Protein type: Motility/polarity/chemotaxis; Secreted; Secreted, signal peptide. Chromosomal Location of Human Ortholog: 12q23.2. Cellular Component: extracellular region; extracellular space; insulin-like growth factor binding protein complex; plasma membrane. Molecular Function: hormone activity; insulin receptor binding; insulin-like growth factor receptor binding; integrin binding; protein binding. Biological Process: activation of MAPK activity; activation of protein kinase B; cell activation; cell motility; cell proliferation; cellular protein metabolic process; DNA replication; glycolate metabolic process; insulin-like growth factor receptor signaling pathway; muscle development; muscle hypertrophy; myoblast differentiation; myoblast proliferation; myotube cell development; negative regulation of apoptosis; phosphoinositide 3-kinase cascade; phosphoinositide-mediated signaling; platelet degranulation; positive regulation of activated T cell proliferation; positive regulation of cell migration; positive regulation of cell proliferation; positive regulation of DNA binding; positive regulation of DNA replication; positive regulation of epithelial cell proliferation; positive regulation of fibroblast proliferation; positive regulation of glucose import; positive regulation of glycogen biosynthetic process; positive regulation of glycolysis; positive regulation of insulin-like growth factor receptor signaling pathway; positive regulation of MAPKKK cascade; positive regulation of mitosis; positive regulation of osteoblast differentiation; positive regulation of peptidyl-tyrosine phosphorylation; positive regulation of phosphoinositide 3-kinase cascade; positive regulation of protein import into nucleus, translocation; positive regulation of protein secretion; positive regulation of Ras protein signal transduction; positive regulation of smooth muscle cell migration; positive regulation of smooth muscle cell proliferation; positive regulation of transcription from RNA polymerase II promoter; positive regulation of transcription, DNA-dependent; positive regulation of tyrosine phosphorylation of Stat5 protein; protein kinase B signaling cascade; protein stabilization; proteoglycan biosynthetic process; Ras protein signal transduction; regulation of gene expression; regulation of multicellular organism growth; response to heat; satellite cell compartment self-renewal involved in skeletal muscle regeneration; signal transduction; skeletal development. Disease: Insulin-like Growth Factor I Deficiency