MOTS-c (Mitochondrial Open Reading Frame of the 12S rRNA-c)
Mitochondrial-Derived Peptide | Metabolic Regulator
Community Research
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MOTS-c is a mitochondrial-derived peptide that operates as a mitohormone through the Folate-AICAR-AMPK pathway. Under metabolic stress, it translocates to the nucleus to bind stress-response transcription factors (NRF2, ATF1/ATF7), regulating genes involved in metabolism and cellular adaptation.
Inhibits the folate cycle leading to AMPK activation. Under metabolic stress, translocates to nucleus to bind stress-response transcription factors, regulating genes involved in metabolism, insulin sensitivity, and cellular adaptation.
Molecular Data
MRWQEMGYIFYPRKLRMethionine
Position 1
Arginine
Position 2
Tryptophan
Position 3
Glutamine
Position 4
Glutamic Acid
Position 5
Methionine
Position 6
Glycine
Position 7
Tyrosine
Position 8
Isoleucine
Position 9
Phenylalanine
Position 10
Tyrosine
Position 11
Proline
Position 12
Arginine
Position 13
Lysine
Position 14
Leucine
Position 15
Arginine
Position 16
Research Indications
Improves insulin sensitivity by ~30% in animal studies through AMPK activation.
Restores metabolic function via insulin receptor sensitization.
Promotes fatty acid oxidation despite identical caloric intake.
Reverses age-dependent physical decline in animal models.
Enhances mitochondrial function via PGC-1α activation.
6.4% median lifespan extension observed in mice studies.
12-15% improvement in running performance from single dose in studies.
Exercise induced 11.9-fold increase in skeletal muscle MOTS-c.
Supports muscle recovery and adaptation to exercise.
Dosing Protocols
Subcutaneous injection is the primary route. Optimal administration is morning before exercise. AMPK activation occurs within 30 minutes.
| Goal | Dose | Frequency | Route |
|---|---|---|---|
| Metabolic health | 5-10mg | Once daily | SubQ |
| Anti-aging protocol | 15mg | 3x weekly | SubQ |
| Exercise performance | 10-15mg | Pre-workout | SubQ |
| Conservative start | 5mg | Once daily | SubQ |
Reconstitution Instructions
- MOTS-c lyophilized powder
- Bacteriostatic water
- Insulin syringes
- Alcohol swabs
- 1 Allow vial to reach room temperature (15-20 minutes)
- 2 Calculate required bacteriostatic water volume
- 3 Draw BAC water into insulin syringe
- 4 Inject slowly down vial side (not directly onto powder)
- 5 Gently swirl until dissolved (never shake vigorously)
- 6 Store at 2-8°C; use within 14 days
Interactions
What to Expect
Side Effects & Safety
Common Side Effects
- Generally well-tolerated in animal studies with minimal side effects
- Mild injection site reactions (redness, swelling)
Stop Signs - Discontinue if:
- Severe allergic reactions or anaphylaxis
- Recurrent hypoglycemia (<50 mg/dL)
- Persistent severe injection site reactions
- Unexplained weight loss >10% of baseline
Contraindications
- Pregnancy or breastfeeding
- WADA prohibited substance (banned for athletic competition)
- Limited long-term human safety data
Quality Checklist
Good Signs
- White to off-white powder with uniform appearance indicating proper storage
- Clear, colorless solution without particles after reconstitution
- Sequence verification (MRWQEMGYIFYPRKLR) with CoA >95% purity by RP-HPLC
Warning Signs
- Limited human clinical data - start conservatively
- WADA banned substance - not for competitive athletes
Bad Signs
- Discolored powder or solution
- Cloudy solution after reconstitution
- No certificate of analysis available
References
- The Mitochondrial-Derived Peptide MOTS-c Promotes Metabolic Homeostasis and Reduces Obesity and Insulin ResistanceLee, C., et al.Cell Metabolism (2015)
Landmark discovery paper identifying MOTS-c as a 16-amino-acid peptide encoded by mitochondrial DNA. Prevented age-dependent and high-fat-diet-induced insulin resistance and obesity in mice via AMPK activation in skeletal muscle.
- The Mitochondrial-Encoded Peptide MOTS-c Translocates to the Nucleus to Regulate Nuclear Gene Expression in Response to Metabolic StressKim, S.J., et al.Cell Metabolism (2018)
MOTS-c rapidly translocates to the nucleus within 30 minutes under metabolic stress in an AMPK-dependent manner, where it interacts with stress-responsive transcription factors including NRF2 and ATF7 to regulate nuclear gene expression.
- MOTS-c Is an Exercise-Induced Mitochondrial-Encoded Regulator of Age-Dependent Physical Decline and Muscle HomeostasisReynolds, J.C., et al.Nature Communications (2021)
Exercise induced an 11.9-fold increase in skeletal muscle MOTS-c. MOTS-c enhanced physical performance across age groups and improved muscle homeostasis in aging mice.
- MOTS-c Increases in Skeletal Muscle Following Long-Term Physical Activity and Improves Acute Exercise Performance After a Single DoseHyatt, J.K.Physiological Reports (2022)
4-8 weeks of voluntary running increased MOTS-c protein expression ~1.5-5-fold in rodent skeletal muscles, sustained for 4-6 weeks of detraining. Single dose improved acute exercise performance.
- The Mitochondrial-Derived Peptide MOTS-c Relieves Hyperglycemia and Insulin Resistance in Gestational Diabetes MellitusYin, Y., et al.Pharmacological Research (2022)
MOTS-c significantly alleviated hyperglycemia, improved insulin sensitivity and glucose tolerance, and reduced birth weight and offspring death in a gestational diabetes mouse model.
Disclaimer
This information is for educational and research purposes only. Consult a healthcare professional before use.