MOTS-c and SS-31: Mitochondrial Peptide Research (Two Different Strategies)

### MOTS-c: organelle-encoded signaling **MOTS-c** is a peptide encoded in mitochondrial DNA. Research explores its role as a **mitokine**—a muscle-derived signal influencing insulin sensitivity, exercise adaptation, and metabolic gene expression in rodent models. peptide limited stocks **MOTS-c** for RUO buyers. ### SS-31 (Elamipretide): membrane-targeted peptide **SS-31** (sometimes called Elamipretide in literature) is a **tetrapeptide** that associates with **cardiolipin** on the inner mitochondrial membrane, stabilizing electron transport chain complexes in preclinical models of oxidative stress and aging-related dysfunction. It is a **different mechanistic class** from MOTS-c (not a mitokine in the same sense). ### “Stack” questions Online discussions sometimes combine mitochondrial tools; in **regulated research**, combinations require justification, analytics, and ethics review. We do not publish protocols. ### RUO Laboratory research only. *MOTS-c is available from peptide limited; SS-31 is discussed here for educational comparison to published literature.*