The 39-Amino-Acid Peptide from Lizard Venom
Isolation of Exendin-4
In 1992, the Journal of Biological Chemistry reported the isolation of exendin-4, a 39-amino-acid peptide, from the venom of Heloderma suspectum, the Gila monster. This finding was significant as it led to further research into the potential uses of this peptide.
The Journal of Biological Chemistry published this discovery in 1992, highlighting the importance of the venom of the Gila monster in the identification of exendin-4.
Comparison to Exendin-3
Exendin-4 differs from the earlier exendin-3 by two amino acid substitutions, as reported in the scientific literature. This distinction is crucial in understanding the development of exendin-4 and its synthetic form.
The difference between exendin-3 and exendin-4, specifically the two amino acid substitutions, was a key factor in the development of exendin-4 as a potential therapeutic agent.
Approval of Exenatide
The synthetic form of exendin-4, exenatide, was approved by the FDA under NDA 021773 in 2005 as Byetta. This approval marked a significant milestone in the development of exendin-4 from its initial isolation in 1992.
Most peptides, including exenatide, are prescription-only medicines in Australia, as stated by the TGA. The FDA's approval of exenatide in 2005 was based on the results of clinical trials, which demonstrated its efficacy and safety.
Implications of the Discovery
The discovery of exendin-4 in 1992 and its subsequent development into a synthetic form, exenatide, has had significant implications for the field of medicine. The trial found that exenatide, a synthetic form of the 39-amino-acid peptide exendin-4, had potential therapeutic applications.
The committee voted to approve exenatide in 2005, following a thorough review of the available data, including the results of clinical trials involving exendin-4, a 4 peptide with a specific amino acid sequence.
Most peptides are prescription-only medicines in Australia. This article reports published research and regulation for general education and is not medical advice. Speak to your doctor.