Receptor Grade IGF-1 LR3 (1mg)

Receptor Grade IGF-1 LR3 is an altered variant of insulin-like growth factor-1; the complete name of the peptide is insulin-like growth factor-1 long arginine 3. IGF-1 derivatives have played important roles in research studies on cell proliferation, cell division, and cell-to-cell communication. Despite research reporting physiological potential similar to the parent protein, Receptor Grade IGF-1 LR3 does not appear to interact with IGF binding proteins (IGFBPs) as strongly as IGF-1. IGFBPs are a group of proteins that modulate the accessibility of Insulin-like Growth Factors (IGFs) within the bloodstream. This modulation potentially alters how IGFs engage with diverse bodily tissues. A reduction in the binding affinity of Insulin-like Growth Factor 1 Long Arg3 (IGF-1 LR3) for IGFBPs might potentially influence its bioavailability. Furthermore, this reduced binding might also affect the manner in which IGF-1 LR3 interacts with targeted tissues within experimental frameworks. Such alterations may lead to an enhanced potential of IGF-1 LR3, albeit possibly with a diminished duration of its active presence. This scenario suggests that the dynamics between IGF-1 LR3 and IGFBPs might be critical in determining the functional outcomes of IGF-1 LR3 in specific experimental contexts. The structural modifications in IGF-1 LR3 may have also contributed to the increased affinity of the peptide towards the IGF-1 receptors. The peptide is created by the inclusion of 13 amino acids to the N-terminus of native IGF-1 and by replacing the glutamic acid at position 3 with arginine, which ultimately leads to the formation of an 83 amino acid peptide.^[1] The designation of Receptor Grade addresses the purity of the reference product, which is considered higher than Media Grade IGF-1 LR3.