MOTS-c research overview

Molecular overview

MOTS-c is a 16-amino-acid mitochondrial-derived peptide encoded within the mitochondrial 12S rRNA region. Its discovery expanded the view of mitochondrial DNA beyond proteins of the respiratory chain.

Research pathways

The original mechanistic work connected MOTS-c with the folate–methionine cycle, AICAR accumulation and AMPK activation. Later studies reported stress-dependent movement to the nucleus and changes in stress-response gene expression.

These findings support a model of retrograde signaling from mitochondria to the nucleus, but much of the detail remains dependent on the model and experimental conditions used.

Published-research summary

Cell and mouse studies have examined metabolic stress, insulin sensitivity and age-associated physiology. Studies measuring endogenous MOTS-c in people are observational and do not establish what administration of synthetic material would do.

Analytical testing methodology

Sequence identity is appropriately evaluated with mass spectrometry, while reversed-phase HPLC assesses chromatographic purity. The Novanta lot report provides the third-party HPLC result for the referenced lot; it does not make a biological or clinical claim.

Storage and stability

No compound-specific shelf life is asserted here. Store sealed lyophilized material dry, cold and protected from light according to its lot documentation, and validate any solution-state interval within the actual laboratory protocol.