What Is MOTS-C? A Research Overview

MOTS-C is a mitochondrial-derived peptide that has become a notable subject of metabolic research. This overview is for laboratory reference only.

What is MOTS-C?

MOTS-c (Mitochondrial ORF of the Twelve S rRNA type-C) is a 16-amino-acid mitochondrial-derived peptide — a short peptide encoded within mitochondrial DNA (in the 12S rRNA region) rather than by the cell nucleus. It's of research interest because of its association with metabolic regulation and cellular energy pathways, and because it is one of the first examples of the mitochondrial genome encoding a signaling molecule.

What research has examined

MOTS-c stepped into wide research attention in 2015, when a landmark study characterized it as a mitochondrially encoded peptide that improved metabolic measures in animal models — reducing diet-induced obesity and insulin resistance.¹ An accompanying commentary framed it as a "mitochondrially encoded hormone," underscoring how unusual it is for the mitochondrial genome to encode a signaling molecule.² The threads that followed include:

• Metabolic homeostasis and insulin sensitivity. The primary literature describes MOTS-c treatment preventing age- and high-fat-diet–induced insulin resistance in mice, with skeletal muscle identified as a principal target tissue.¹
• The AMPK / folate-cycle mechanism. Mechanistically, MOTS-c has been described as acting on the folate–methionine cycle and de-novo purine synthesis, leading to activation of AMPK — a central cellular energy sensor.³
• Exercise and aging. A 2021 study reported that MOTS-c is exercise-induced and that treatment improved physical capacity across young, middle-aged, and old mice, positioning it in healthspan and age-related-decline research.⁴

Broader reviews summarize MOTS-c as a mitochondrial-derived peptide of interest across metabolic-disorder research.⁵ All of the above are animal- and cell-model findings, presented for scientific reference only.

Why "mitochondrial-derived" is unusual

Most of the body's peptides are encoded by the cell nucleus. MOTS-c is instead encoded within the mitochondrial genome — one of a small family of mitochondrial-derived peptides. Researchers find this notable because it implies mitochondria can send signals that influence metabolism at the level of the whole cell, and even communicate with the nucleus. That "retrograde signaling" idea is part of why MOTS-c is studied alongside other mitochondria- and longevity-linked molecules.

MOTS-c, NAD+ and SS-31 in mitochondrial research

MOTS-c is often grouped with two other compounds studied in mitochondrial and longevity contexts, though each works by a different route:

They are referenced together not because they share a mechanism, but because they converge on mitochondrial function from different angles.

Related comparisons: MOTS-c vs SS-31 · MOTS-c vs Tesamorelin.

What the research does not establish

The MOTS-c literature is preclinical — cell and animal models, plus observational human measurements of circulating levels. There are no controlled human efficacy trials establishing outcomes, and Renova makes no human-use claims. The citations below let researchers evaluate the primary sources themselves.

Handling

Supplied as a lyophilized powder; reconstitute with bacteriostatic water and store refrigerated (2–8°C) after reconstitution. See our reconstitution and storage guides for concentration math and cold-chain handling.

Verified quality

Renova MOTS-C ships with a per-batch third-party COA. Confirm your lot with Verify Your Vial.

Explore MOTS-C →

References

1. Lee C, et al. The mitochondrial-derived peptide MOTS-c promotes metabolic homeostasis and reduces obesity and insulin resistance. Cell Metab. 2015;21(3):443–454. PMID: 25738459. ↩ ↩²

2. Zarse K, Ristow M. A mitochondrially encoded hormone ameliorates obesity and insulin resistance. Cell Metab. 2015;21(3):355–356. PMID: 25738453. ↩

3. Lee C, Kim KH, Cohen P. MOTS-c: A novel mitochondrial-derived peptide regulating muscle and fat metabolism. Free Radic Biol Med. 2016;100:182–187. PMID: 27216708. ↩

4. Reynolds JC, et al. MOTS-c is an exercise-induced mitochondrial-encoded regulator of age-dependent physical decline and muscle homeostasis. Nat Commun. 2021;12(1):470. PMID: 33473109. ↩

5. Gao Y, et al. MOTS-c Functionally Prevents Metabolic Disorders. Metabolites. 2023;13(1):125. PMID: 36677050. ↩