MOTS-C research guide
Mitochondrial-derived 16-amino-acid peptide
A model-by-model guide to MOTS-C research, separating its original cellular and mouse findings from later human observational work and unresolved questions.
AUS Peptide Supply editorial team01 · Identity
What the name identifies
MOTS-C is a 16-amino-acid mitochondrial-derived peptide encoded within the mitochondrial 12S rRNA region. Its unusual origin makes sequence confirmation particularly important: an assay should establish the expected synthetic peptide identity rather than infer it from the product name.
02 · Evidence position
What the literature can support
The foundational evidence is mechanistic, cell-based and animal research. Human studies have measured endogenous circulating MOTS-C and its response to metabolic conditions, but those observations are not equivalent to trials of administered material. Newer results are not uniformly positive, which is why the dossier records both supportive and limiting findings.
03 · Study-level map
Evidence and its limits
What established the research field?
The 2015 discovery paper identified MOTS-C and studied metabolic signalling in cultured cells and mouse models.
Limit: Cell and mouse findings do not establish a human therapeutic effect or an administration protocol.
What has been measured in people?
A controlled metabolic study measured changes in circulating endogenous MOTS-C during lipid and insulin exposure in participants with and without PCOS.
Limit: It studied the endogenous peptide as a biomarker, not the effects of a supplied research product.
Are all cellular findings favourable?
A 2026 study reported metabolic signalling alongside blunted reparative function in human mesenchymal stromal cells under its experimental conditions.
Limit: One cell-system result cannot settle effects across tissues, concentrations or organisms, but it is relevant counter-evidence.
04 · Analytical context
Questions a batch record should answer
- 01Does the expected intact mass match the declared 16-amino-acid sequence?
- 02Are oxidised, truncated or otherwise modified species visible and addressed in the method?
- 03Does the report distinguish identity and area purity from actual peptide content in the vial?
05 · Boundary conditions
What this record does not establish
- Most intervention claims remain grounded in preclinical models.
- Endogenous biomarker measurements do not predict effects of exogenous material.
- The literature contains context-dependent and limiting findings that should not be omitted.
Sources checked
- 1.The mitochondrial-derived peptide MOTS-c promotes metabolic homeostasis
PubMed / Cell Metabolism · 2015 · Primary study
- 2.Lipids and insulin regulate mitochondrial-derived peptide MOTS-c in PCOS and healthy subjects
PubMed / Clinical Endocrinology · 2019 · Primary study
- 3.MOTS-c activates metabolic signalling but blunts reparative function in human mesenchymal stromal cells
PubMed / Inflammation and Regeneration · 2026 · Primary study