MOTS-C and DSIP: Mitochondria-Derived Peptides and Sleep Research
MOTS-C and DSIP represent two distinct areas of peptide research — mitochondrial biology and sleep physiology — with significant implications for longevity and neuroendocrine research.
- MOTS-C is a 16-amino-acid peptide encoded within mitochondrial DNA (the 12S rRNA gene) — a landmark example of mitochondria acting as signalling hubs, not just energy producers.
- MOTS-C research centres on AMPK activation, insulin sensitivity, and metabolic regulation in animal models; its plasma levels decline with age.
- DSIP (Delta Sleep-Inducing Peptide), first isolated in 1977, is studied for delta/slow-wave sleep, HPA-axis and neuroendocrine modulation, and neuroprotection.
- DSIP serves as a research tool for sleep physiology, neuroendocrine interactions, and the peptidergic regulation of circadian rhythms.
- Popular Peptides supplies MOTS-C (10 mg) and DSIP (10 mg) as independently tested, GMP-grade research compounds; research use only.
MOTS-C: A Mitochondrial-Derived Peptide
MOTS-C is a 16-amino acid peptide encoded within the 12S rRNA gene of mitochondrial DNA. Its discovery represented a significant advance in understanding mitochondrial biology — challenging the view that mitochondria primarily function as energy-producing organelles and establishing their role as signalling hubs.
Metabolic Regulation
The most extensively studied property of MOTS-C is its role in metabolic regulation. Research in animal models has demonstrated that MOTS-C:
- —Activates AMPK (AMP-activated protein kinase), a key cellular energy sensor that promotes glucose uptake and fatty acid oxidation
- —Improves insulin sensitivity in muscle and adipose tissue
- —Reduces diet-induced obesity and metabolic dysfunction in mouse models
- —Enhances exercise capacity and endurance
MOTS-C levels in plasma decline with age, and researchers have proposed that this decline may contribute to age-associated metabolic impairment. Preclinical studies restoring MOTS-C levels in aged animals have shown improvements in physical performance and metabolic parameters.
The Retrograde Signalling Concept
MOTS-C exemplifies the concept of mitochondrial retrograde signalling — where mitochondria communicate their functional state to the nucleus and broader cellular environment. This positions MOTS-C as both a research target and a research tool for studying the mitochondria-to-nucleus communication axis.
DSIP: Delta Sleep-Inducing Peptide
Delta Sleep-Inducing Peptide (DSIP) is a neuropeptide first isolated from the cerebral venous blood of rabbits in 1977. It was identified based on its ability to induce delta (slow-wave) sleep states in research animal models.
Neuroendocrine Research
Beyond its original characterisation, research has identified DSIP as having broad neuroendocrine modulatory properties:
**Sleep architecture**: DSIP has been studied for its effects on the circadian regulation of sleep stages, particularly the induction and maintenance of delta-wave sleep
**HPA axis modulation**: Research has examined DSIP's interactions with the hypothalamic-pituitary-adrenal axis, including potential effects on corticotropin and cortisol regulation
**LH and GH secretion**: Studies have investigated DSIP's influence on luteinising hormone and growth hormone release patterns
**Neuroprotection**: Preclinical models have explored potential neuroprotective properties under oxidative stress conditions
Research Utility
DSIP serves as a research tool for studying sleep physiology, neuroendocrine interactions, and the peptidergic regulation of circadian rhythms. Its broad receptor interactions make it useful for mapping neuropeptide signalling systems.
Availability in Canada
Popular Peptides supplies both MOTS-C (10mg) and DSIP (10mg) as independently tested, GMP-grade research compounds.
Important Notice
For research use only. Not approved for human therapeutic application.
Where to get these
Compounds referenced in this guide:
Everything below ships domestically from Vancouver, BC — tracked, insured, discreetly packaged, typically 2 to 5 business days. Nothing crosses a border, so nothing gets held at one. Purity and identity are confirmed per batch by an independent lab, and you can pull the certificate for your exact vial by lot number. Canadian dollars, free shipping over $300 CAD.
Browse every published lab result before you order, or check the reference library for molecular data on each compound.
Frequently asked questions
What is MOTS-c?
A mitochondria-derived peptide studied in metabolic and mitochondrial research — one of a small group of peptides encoded in mitochondrial rather than nuclear DNA.
What is DSIP?
Delta sleep-inducing peptide, a synthetic nonapeptide studied in sleep and neuroendocrine research.
Why are they covered together?
Both sit in metabolic and neuroendocrine research space and are frequently studied alongside NAD+ biology, though they are structurally unrelated.
Every batch we sell is independently third-party tested, with the full Certificate of Analysis published and checkable by lot number.