Mitochondrial Peptides: MOTS-c, SS-31 and the Energy-Metabolism Frontier

MOTS-c is a 16-amino-acid peptide encoded inside mitochondrial DNA itself. one of the few peptides whose gene lives outside the nucleus. It activates AMPK and improves insulin sensitivity in animal models, with downstream effects on glucose uptake and fatty-acid oxidation.

SS-31 (elamipretide) is a tetrapeptide that binds cardiolipin in the inner mitochondrial membrane, stabilising cristae morphology and electron-transport chain efficiency. It has been studied in ischemia-reperfusion injury, heart failure models, and age-related mitochondrial dysfunction.

What unites these compounds is target specificity. classical antioxidants distribute through the cell; cardiolipin-targeted peptides concentrate where oxidative stress originates. That selectivity is why mitochondrial peptides are now a distinct research category, not just a niche.

Working with mitochondrial peptides demands strict cold-chain handling. cardiolipin-binding kinetics are sensitive to oxidation. Orvion's SS-31 ships in argon-flushed lyophilized vials with full lot traceability.