MOTS-c (mitochondrial ORF of the 12S rRNA type-c) is a mitochondrial-derived peptide that has emerged as a significant research peptide in the fields of metabolism, aging, and exercise physiology. This article examines its research applications and the importance of sourcing from reliable peptides raw material manufacturers.
What Is MOTS-c?
MOTS-c is a short 16-amino-acid peptide encoded within the 12S rRNA region of the mitochondrial genome. Unlike traditional peptides encoded by nuclear DNA, MOTS-c represents a novel class of mitochondrial signaling molecules that regulate cellular metabolism and stress responses.
Mechanism of Action
MOTS-c activates AMP-activated protein kinase (AMPK), enhances insulin sensitivity, and stimulates β-oxidation of fatty acids. It improves intrinsic muscle mitochondrial bioenergetic health and efficiency in a PGC-1α/AMPK-dependent manner.
2026 Research Breakthroughs
– Diabetes Research : MOTS-c treatment significantly reduced fasting blood glucose and circulating C-reactive protein levels in a diabetic rat model, suppressing systemic and cardiac inflammasome activation.
– Muscle Research : MOTS-c enhances physical endurance, prevents age-related sarcopenia, and supports muscle mass maintenance in animal models.
– Reproductive Research : MOTS-c targets SLC7A11 to preserve spermatogenesis by suppressing ferroptosis.
– Stem Cell Research : MOTS-c activates metabolic signaling but may blunt reparative function in human mesenchymal stromal cells, highlighting the complexity of its biological effects.
Research Applications
MOTS-c is widely used in laboratory settings for metabolic disease and insulin resistance studies, exercise physiology and endurance research, aging and mitochondrial dysfunction studies, reproductive biology research, and cardiac and inflammatory research.
Regulatory Status
MOTS-c was evaluated by the FDA’s PCAC in July 2026. The PCAC voted in favor of adding MOTS-c to the 503A Bulks List, subject to formal rulemaking. WADA has designated MOTS-c as prohibited.
Sourcing MOTS-c for Research
When sourcing MOTS-c from peptide raw material suppliers, verify:
– HPLC Purity : ≥98% with batch-specific chromatograms.
– Mass Confirmation : Verification of the correct molecular weight (approximately 1,741 Da).
– Sequence Confirmation : The 16-amino-acid sequence must be confirmed by MS/MS.
Product Disclaimer & Terms of Use
IMPORTANT NOTICE: FOR RESEARCH USE ONLY (RUO)
This product is intended exclusively for laboratory research and scientific development purposes. It is NOT a drug, food, medical device, cosmetic, or diagnostic product.