Fatty Acid
Fatty Acid — A long-chain carboxylic acid that can be conjugated to peptides to enhance albumin binding, extend half-life, and improve membrane permeability.
What Is a Fatty Acid?
A fatty acid is a long-chain carboxylic acid (C12-C22) that serves as an energy source and membrane component. In peptide drug design, fatty acid conjugation (lipidation) extends peptide half-life by promoting reversible binding to serum albumin (67 kDa), preventing renal filtration.
Fatty Acids in Peptide Drugs
- Palmitic acid (C16): Liraglutide fatty acid chain. t1/2 = 13 hours
- Stearic diacid (C18): Semaglutide fatty diacid chain. t1/2 = 7 days
- Myristic acid (C14): Insulin detemir fatty acid. t1/2 = 5-7 hours
Frequently Asked Questions
What is Fatty Acid?
A long-chain carboxylic acid that can be conjugated to peptides to enhance albumin binding, extend half-life, and improve membrane permeability.
Why is Fatty Acid important in peptide research?
Fatty Acid is a fundamental concept in chemistry as it relates to peptide science. It directly influences experimental design, compound characterization, and the reliability of research outcomes across biochemistry and molecular biology disciplines.