Comparison

MOTS-c vs Selank

Function

While MOTS-c improves insulin sensitivity, enhances glycolysis, reduces oxidative stress, and shows protective effects in models of metabolic syndrome, aging, and ischemia-reperfusion injury8135146, Selank is a peptide developed in Russia as an anxiolytic and nootropic; in animal models it reduces anxiety-like behavior and modulates immune parameters under stress39.

Mechanism

While MOTS-c works as a 16-amino-acid mitochondrial-derived peptide that translocates to the nucleus under metabolic stress and regulates glucose and lipid metabolism largely via activation of AMPK and modulation of mTOR and folate-cycle–linked pathways854140146, Selank is a synthetic heptapeptide, Thr-Lys-Pro-Arg-Pro-Gly-Pro, that combines a tuftsin fragment with a Pro-Gly-Pro motif and is reported to modulate GABAergic neurotransmission and cytokine balance while being resistant to proteolytic degradation39.

Length and Sequence

MOTS-c is 16 amino acids long, whereas Selank is shorter as it has a length of 7 amino acids. MOTS-c is made up of a sequence of Methionine, Arginine, Tryptophan, Glutamine, Glutamic acid, Methionine, Glycine, Tyrosine, Isoleucine, Phenylalanine, Tyrosine, Proline, Arginine, Lysine, Leucine, Arginine. Selank is made up of a sequence of Threonine, Lysine, Proline, Arginine, Proline, Glycine, Proline.

Receptor

MOTS-c

No dedicated cell-surface receptor has been definitively identified; signaling is primarily described via intracellular AMPK and related metabolic pathways8135146

Selank

Not clearly established in the current dataset.

Organism or Origin

MOTS-c

Human mitochondrial peptide encoded in the 12S rRNA gene region54146

Selank

Synthetic analog of the IgG-derived tetrapeptide tuftsin39

Gene

MOTS-c

MT-RNR1

Selank

Not assigned in the current dataset.

Related articles

No related articles are linked to these peptides yet.

Sources

8Mitochondrial-encoded peptide MOTS-c prevents pancreatic islet ..., https://www.nature.com/articles/s12276-025-01521-1
54MOTS-c - Wikipedia, https://en.wikipedia.org/wiki/MOTS-c
135MOTS-c Promotes Glycolysis via AMPK-HIF-1α-PFKFB3 ... - PubMed, https://pubmed.ncbi.nlm.nih.gov/40035775/
146MOTS-c: A promising mitochondrial-derived peptide for therapeutic ..., https://pmc.ncbi.nlm.nih.gov/articles/PMC9905433/
39Application of thr-lys-pro-arg-pro-gly-pro peptide (selank) for ..., https://patents.google.com/patent/RU2629832C1/en