MOTS-c is a mitochondria-derived regulatory peptide encoded within the 12S rRNA region of mitochondrial DNA, functioning as an intracellular signaling molecule between the mitochondria and nucleus. Discovered less than a decade ago, MOTS-c is encoded directly in mitochondrial DNA and operates as a stress-response signal. When cellular energy stress occurs, MOTS-c travels to the nucleus and activates AMPK-dependent signaling cascades — the enzyme researchers associate most closely with metabolic adaptation and longevity-associated gene expression. Research models demonstrate effects on mitochondrial efficiency, cellular metabolic flexibility, and the expression of longevity-associated markers. Studies have examined its role in AMPK activation, exercise physiology models, and the biology of cellular aging. MOTS-c represents a relatively new class of peptide encoded by organellar rather than nuclear DNA. For researchers studying mitochondrial signaling, metabolic adaptation mechanisms, or longevity biology, MOTS-c offers an unusual research profile — a compound that acts as both a cellular stress sensor and a transcriptional activator. For research use only.
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