STACK IMAGEMots-C Mitochondrial Open Reading Frame Peptide
Mots-C is a small peptide (16 amino acids long) with an unusual origin: its instructions are encoded in the DNA found inside mitochondria (the parts of a cell that produce energy), not in the cell's main DNA. Under metabolic stress, studies have investigated how it travels to the cell's nucleus and activates AMPK - an enzyme that acts like a fuel gauge for the cell, sensing how much energy is available and adjusting the cell's behaviour.
- CAS Number
- 1627580-64-6
- Molecular Formula
- C₁₀₁H₁₅₂N₂₈O₂₂S₂
- HPLC Purity
- ≥99% (batch-verified)
- Form
- Lyophilised powder
- Storage
- 2–8°C, desiccated, protected from light
- Classification
- Research reagent - in vitro use only
Mots-C research overview
Mots-C is a 16-amino-acid peptide encoded within the mitochondrial genome — specifically within the 12S ribosomal RNA (rRNA) gene — making it one of the very few biologically active peptides known to be encoded by mitochondrial rather than nuclear DNA. It was first identified in 2015 by researchers examining small open reading frames (sORFs) within the mitochondrial genome. As a mitochondrial-derived peptide (MDP), Mots-C occupies a distinct research category: it is an endogenous signalling molecule that appears to communicate mitochondrial metabolic status to other cellular compartments — a form of retrograde (mitochondria-to-nucleus) signalling.
Preclinical research on Mots-C has primarily focused on metabolic regulation. Cell culture studies have reported that Mots-C activates AMP-activated protein kinase (AMPK), a master sensor of cellular energy status that is activated when the AMP:ATP ratio rises. Downstream of AMPK activation, researchers have examined effects on glucose uptake, fatty acid oxidation, and insulin signalling in skeletal muscle cell lines. Rodent studies have investigated Mots-C administration in diet-induced metabolic dysfunction models, examining changes in lean mass and adipose tissue distribution parameters, glucose tolerance, and insulin sensitivity markers. Research has also examined its effects on the folate cycle and AICAR metabolism, suggesting involvement in purine biosynthesis regulation.
Beyond metabolic biology, Mots-C has attracted research interest in the context of ageing and cellular stress responses. Plasma Mots-C concentrations have been reported to change with age and metabolic status in human samples, prompting investigation of its role as a research marker. Its unique mitochondrial origin and systemic signalling properties make it a subject of growing interest in longevity biology, mitochondrial communication research, and exercise physiology studies. Velox Peptides supplies Mots-C at ≥99% HPLC-verified purity as a lyophilised research reagent. Not for human or veterinary consumption.
Summary paraphrased from the peer-reviewed preclinical literature. For in vitro research use only. For source citations, email support@veloxpeps.com.
Compound specifications
| Common name | Mots-C |
|---|---|
| Full name | Mitochondrial Open Reading Frame Peptide |
| CAS number | 1627580-64-6 |
| Molecular formula | C₁₀₁H₁₅₂N₂₈O₂₂S₂ |
| Molecular weight | 2174.5 g/mol |
| Sequence | MRWQEMGYIFYPRKLR |
| HPLC purity | ≥99% (batch-verified) |
| Appearance | White to off-white lyophilised powder |
| Solubility | Bacteriostatic water, sterile saline |
| Storage (lyophilised) | 2–8°C, protected from light |
| Storage (reconstituted) | 2–8°C, up to 28 days |
| Supplied as | 10mg |
Batch testing and certificate of analysis
Every batch of Mots-C is third-party HPLC-tested prior to dispatch. Batch documentation is available on request.
Previous batch CoAs are archived in the CoA library. For batch-specific CoA requests prior to purchase, contact support@veloxpeps.com.
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Compliance notice
For in vitro research use only. Mots-C is supplied solely as a research reagent for qualified professionals conducting in vitro or animal-model studies. It is not a medicinal product within the meaning of the Human Medicines Regulations 2012. It has not been evaluated by the MHRA or FDA. It is not intended for human or veterinary consumption, diagnosis, treatment, cure, or prevention of any condition. Any use outside lawful scientific research is outside the scope of sale.
