MOTS-c is a small peptide encoded within the mitochondrial genome, unlike most peptides that come from nuclear DNA. It is studied as a mitochondrial-derived signaling molecule involved in metabolism, cellular stress responses, aging, and exercise.
What is MOTS-c?
MOTS-c (Mitochondrial Open Reading Frame of the 12S rRNA type-c) is a small peptide encoded within the mitochondrial genome. Unlike most peptides, which are coded in nuclear DNA, MOTS-c originates from mitochondrial DNA. This highlights the organelle's role not only in energy metabolism but also in signaling. The discovery has expanded interest in mitochondrial-derived peptides as potential regulators of cellular processes. To understand where peptides fit among biomolecules, see amino acids, peptides, and proteins. (Reference: Lee et al., 2015)
How has MOTS-c been studied?
Research on MOTS-c spans in vitro, animal, and human models:
- Cell culture studies have examined how MOTS-c influences metabolic pathways, including glucose utilization and stress responses.
- Animal models have explored its role in energy balance, skeletal muscle activity, and mitochondrial function.
- Human studies have measured circulating MOTS-c levels in contexts such as exercise and aging, showing how the peptide behaves under different physiological states.
(Reference: Reynolds et al., 2021)
Key research observations
Across published studies, several observations about MOTS-c have emerged:
- Metabolic regulation: MOTS-c interacts with pathways related to AMPK signaling and folate metabolism.
- Stress response: MOTS-c levels change under cellular and environmental stress, suggesting a role in adaptive responses.
- Age-related patterns: research notes that MOTS-c concentrations decline with age in some tissues and circulating samples.
- Exercise association: human studies have measured increases in MOTS-c after acute bouts of physical activity.
(Reference: Reynolds et al., 2021)
Common research applications
MOTS-c is currently studied in laboratory settings to:
- Investigate mitochondrial and nuclear communication pathways.
- Analyze changes in peptide signaling during metabolic stress.
- Explore mitochondrial contributions to age-related cellular changes.
- Develop models of exercise-induced signaling molecules.
Peptides like MOTS-c used in research are produced by peptide synthesis and verified for purity. (Reference: Kim et al., 2018)
The compound at Codex Research
MOTS-c, 10 mg per vial — batch-verified, with its certificate of analysis.
Frequently asked questions
What is MOTS-c?
MOTS-c is a small mitochondrial-derived peptide encoded in mitochondrial DNA. It is studied as a signaling molecule involved in metabolism, stress response, aging, and exercise.
Where does MOTS-c come from?
Unlike most peptides, which are encoded in nuclear DNA, MOTS-c is encoded within the mitochondrial genome, specifically the 12S rRNA region.
What does MOTS-c do in research studies?
Studies associate MOTS-c with AMPK signaling and folate metabolism, changes under cellular stress, declines with age in some tissues, and increases after exercise.
References
- Lee, C., et al. (2015). The mitochondrial-derived peptide MOTS-c promotes metabolic homeostasis and reduces obesity and insulin resistance. Cell Metabolism, 21(3), 443-454.
- Kim, K.H., et al. (2018). Mitochondrial peptides as regulators of metabolism. Cell Metabolism, 28(3), 330-341.
- Reynolds, J.C., et al. (2021). MOTS-c: a mitochondrial signal regulating metabolism and aging. Frontiers in Endocrinology, 12, 678778.
- Reynolds, J.C., et al. (2021). MOTS-c is an exercise-induced mitochondrial-encoded regulator of age-dependent physical decline and muscle homeostasis. Nature Communications, 12, 470.