Low StockA mitochondrial-encoded peptide that triggers the same metabolic adaptations as sustained exercise — glucose uptake through insulin-independent pathways, improved oxidative capacity, and enhanced stress resistance.
Cells release it when they detect metabolic demand. Endogenous levels rise 12-fold during physical activity.
The mechanism runs through AMPK, the cellular energy sensor that coordinates fuel availability with energy expenditure.
Made in USA•Purity: 99% HPLC
Observational human data and one MOTS-c analog Phase 1 trial; no native MOTS-c randomized controlled trials
For laboratory research use only.
MOTS-c is an exercise signal encoded in mitochondrial DNA — a 16-amino-acid peptide that rises 12-fold in muscle during physical activity. It represents a class of molecules called mitochondrial-derived peptides (MDPs) that allow mitochondria to communicate with the nucleus and other cellular compartments.
Research positions MOTS-c as more than a metabolic regulator. Circulating levels are higher in younger, metabolically healthy individuals and lower in obesity, type 2 diabetes, coronary artery disease, and sarcopenia. Exercise trials show MOTS-c behaves as an exercise-induced mitokine; better-conditioned subjects have more dynamic MOTS-c responses. Reviews in diabetes, aging, bone biology, and cardiovascular research frame MOTS-c as a broad mitochondrial signaling peptide for healthy aging rather than a narrow fat-loss tool.
MOTS-c levels in skeletal muscle rise approximately 12-fold following exercise, with elevations persisting for several hours. Circulating MOTS-c also increases during and after physical activity. This positions MOTS-c as a molecular mediator of exercise's metabolic benefits — the signal that translates physical demand into cellular adaptation.
Endogenous MOTS-c expression declines with age alongside reduced physical capacity. Population genetic studies have identified a MOTS-c variant (m.1382A>C) associated with exceptional longevity in Japanese cohorts.
Multiple studies have examined circulating MOTS-c across metabolic and cardiovascular contexts:
Preclinical research has examined MOTS-c in cardiac stress models. In pressure-overload cardiac dysfunction and diabetic myocardial injury models, MOTS-c administration reduced remodeling and enhanced antioxidant defense. The mechanism aligns with its AMPK/antioxidant profile — the same pathways that protect muscle and metabolism appear to protect heart tissue under stress.
Early research suggests MOTS-c influences bone remodeling. Preclinical data show effects on osteoblast and osteoclast activity, nudging the cells that build and break down bone toward a more balanced state. This extends the exercise-mimetic framing: MOTS-c appears to talk to bone as well as muscle and fat.
CB4211, a MOTS-c analog, completed Phase 1a/1b clinical trials in 2021. Reductions in liver enzymes (ALT, AST) and trends toward weight loss were observed with acceptable tolerability. Development was discontinued due to formulation challenges rather than safety signals. This remains the only clinical trial of a MOTS-c analog to date.
Most mechanistic research comes from murine models. Human data is primarily observational, correlating endogenous MOTS-c levels with metabolic and cardiovascular phenotypes. The single clinical trial of a MOTS-c analog was discontinued before efficacy endpoints could be established. Cardiovascular, bone, and cardiac effects are preclinical only — human interventional data does not yet exist for these domains. Exercise-induction data in humans confirms the biological response but does not establish exogenous administration effects.
For laboratory research use only.
| Amino Acid Sequence | Met-Arg-Trp-Gln-Glu-Met-Gly-Tyr-Ile-Phe-Tyr-Pro-Arg-Lys-Leu-Arg |
|---|---|
| Single-Letter Code | MRWQEMGYIFYPRKLR |
| Molecular Formula | C101H152N28O22S2 |
| Molecular Weight | 2174.64 g/mol |
| Amino Acid Count | 16 |
| CAS Number | 1627580-64-6 |
| PubChem CID | 255386757 |
| Origin | Mitochondrial-derived peptide encoded within the mitochondrial 12S rRNA gene (MT-RNR1) |
| Synonyms | Mitochondrial ORF of the 12S rRNA type-c, MT-RNR1 |
This product ships as lyophilized (freeze-dried) powder. After reconstitution, the solution requires different storage conditions than the powder.
Do not freeze. Use within 30 days of mixing.