MOTS-c

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MOTS-c is a short peptide encoded in the mitochondrial genome and a member of the larger group of mitochondrial-derived peptides (MDPs). MDPs have recently been found to be bioactive hormones that play important roles in mitochondrial communication and energy regulation. Originally thought to be related to the mitochondria only, new research has revealed that many MDPs are active in the cell nucleus and that some even make their way into the blood stream to have systemic effects. MOTS-c is a newly identified MDP that has, to date, been found to play important roles in metabolism, weight regulation, exercise capacity, longevity, and even processes leading to disease states like osteoporosis. MOTS-c has been found in the nucleus of cells as well as in the general circulation, making it a bonafide natural hormone. The peptide has been targeted for intensive research in the last five years due to its therapeutic potential.

Sequence: Met-Arg-Trp-Gln-Glu-Met-Gly-Tyr-Ile-Phe-Tyr-Pro-Arg-Lys-Leu-Arg
Molecular Formula: C101H152N28O22S2
Molecular Weight: 2174.64 g/mol
PubChem SID: 255386757
CAS Number: 1627580-64-6
Synonyms: Mitochondrial open reading frame of the 12S rRNA-c, MT-RNR1

RESEARCH OBSERVATIONS

  • Mitochondria-derived peptide (MDP).
  • Promotes biosynthesis of the endogenous AMP analog AICAR and consequently AMP-activated protein kinase (AMPK).
  • Induces cellular and systemic glucose uptake and improves insulin sensitivity. Shown to prevent diet-induced obesity (DIO) in mice.
  • Potential anti-obesity and anti-aging compound.
  • Involved in cellular stress resistance by regulating the nuclear genome. During metabolic stress (serum or glucose deprivation or oxidative stress) translocates to the nucleus in an AMPK-dependent manner. In the nucleus, MOTS-c binds to the transcription factor NRF2 that is a stress-responsive transcription factor and activates anti-oxidative stress genes.

RESEARCH LINKS

https://www.sciencedirect.com/science/article/abs/pii/S0891584916302507

https://www.researchgate.net/publication/303438605_MOTS-c_A_novel_mitochondrial-derived_peptide_regulating_muscle_and_fat_metabolism

https://pressroom.usc.edu/hormone-mimics-the-effects-of-exercise/

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