Buy Mots-C Online

Direct Answer: Sourcing MOTS-c Online for Laboratory Research

To buy MOTS-c online for laboratory research, qualified investigators must select a supplier providing lot-specific, third-party analytical verification. PX1 Research supplies synthesized MOTS-c peptide at >98% purity, verified via Reverse-Phase High-Performance Liquid Chromatography (RP-HPLC) and Electrospray Ionization Mass Spectrometry (ESI-MS). Manufactured in USA-based GMP-compliant facilities, all lots undergo strict endotoxin screening (<0.1 EU/mg) to ensure baseline consistency across in vitro assays and animal models.

When sourcing mitochondrial-derived peptides, acquiring fully characterized materials with transparent documentation is essential for reproducible research. Investigators can explore our complete catalog of all peptides or establish a dedicated wholesale account for high-throughput institutional studies.

Overview of MOTS-c: Structure and Mitochondrial Origin

MOTS-c (Mitochondrial Open Reading Frame of the 12S rRNA Type-c) is a 16-amino-acid peptide encoded within the mitochondrial genome rather than the nuclear DNA. First identified in 2015, MOTS-c belongs to an emerging class of signaling molecules known as mitochondrial-derived peptides (MDPs). These peptides act as retrograde signaling factors, communicating mitochondrial stress and metabolic status directly to the nucleus to regulate nuclear gene expression.

Structurally, the 16-amino-acid sequence of MOTS-c (Met-Arg-Trp-Gln-Glu-Met-Gly-Tyr-Ile-Phe-Tyr-Pro-Arg-Lys-Leu-Arg) is highly conserved across mammalian species. Preclinical models indicate that under conditions of metabolic stress, MOTS-c translocates from the mitochondrion to the cell nucleus, where it binds to specific response elements and interacts with transcription factors such as NRF2. This nuclear translocation highlights its role as an active hormonal signaling molecule rather than a simple metabolic byproduct.

Mechanisms of Action: AMPK Pathway and Folate-Methionine Cycle

Preclinical investigations demonstrate that the primary mechanism of action for MOTS-c involves the modulation of the folate-methionine cycle, which subsequently leads to the activation of 5'-AMP-activated protein kinase (AMPK). AMPK functions as a master metabolic sensor within mammalian cells, regulating energy homeostasis by promoting ATP-generating catabolic processes while inhibiting ATP-consuming anabolic pathways.

In vitro assays reveal that MOTS-c inhibits the folate cycle by targeting 5-methyltetrahydrofolate (5-MTHF) synthesis. This transient perturbation increases cellular levels of 5-aminoimidazole-4-carboxamide ribonucleotide (AICAR), a natural endogenous activator of AMPK. To explore related cellular signaling cascades, researchers often examine broader AMPK signaling pathways alongside mitochondrial signaling studies.

Beyond AMPK activation, in vitro data indicate that MOTS-c regulates glucose transport by upregulating glucose transporter 4 (GLUT4) translocation to the plasma membrane independent of classical insulin receptor signaling cascades. This unique pathway allows researchers to examine glucose utilization and cellular metabolic capacity under isolated experimental conditions.

Preclinical Research Findings: Metabolic Regulation and Exercise Capacity

In animal models, MOTS-c administration has been evaluated extensively in the context of metabolic flexibility, insulin sensitivity, and physical endurance capacity. Rodent studies published in peer-reviewed literature indicate that MOTS-c treatment significantly enhances skeletal muscle insulin sensitivity and prevents diet-induced obesity in mice fed high-fat diets.

Furthermore, preclinical studies suggest that MOTS-c acts as an exercise-mimetic peptide. In mouse models subjected to treadmill running assays, acute administration of MOTS-c enhanced physical performance and oxygen consumption capacity. Researchers observed an upregulation of genes associated with fatty acid oxidation and mitochondrial biogenesis within skeletal muscle tissue, suggesting that MOTS-c mediates adaptive responses typically associated with acute physical exertion.

Investigating these adaptive responses provides critical insights into cellular energetics and age-related metabolic decline. Additional mechanistic details and published literature compilations are maintained in the PX1 Research peptide literature repository.

Evaluating Supplier Quality: HPLC, Mass Spectrometry, and COAs

When procuring synthetic peptides online, verifying analytical purity is crucial to prevent experimental artifacts caused by truncated sequences, residual counterions, or organic solvents. A trustworthy supplier must furnish a lot-specific Certificate of Analysis (COA) generated by an independent, ISO 17025 accredited testing laboratory.

Purity should be evaluated primarily through Reverse-Phase High-Performance Liquid Chromatography (RP-HPLC). RP-HPLC separates the target peptide from synthesis side-products, providing a clear chromatogram and baseline integration. Qualified research material should display a target peak area corresponding to >98% overall purity. Below is an example of standard quality criteria applied at PX1 Research:

Importance of Endotoxin Testing in Cell Culture and In Vivo Protocols

Endotoxins (lipopolysaccharides or LPS) are structural components of Gram-negative bacterial cell walls that commonly contaminate synthetic peptides during production or purification. In cellular and animal research, elevated endotoxin levels induce non-specific inflammatory responses, activating Toll-like receptor 4 (TLR4) and triggering cytokine cascades (e.g., TNF-alpha, IL-6).

These uncharacterized inflammatory responses corrupt experimental data, leading to false conclusions regarding peptide activity. PX1 Research subjects every synthesized batch to Limulus Amebocyte Lysate (LAL) chromogenic assays, ensuring endotoxin levels remain strictly below 0.1 EU/mg. This guarantees that observed biological effects in cell culture or rodent assays stem solely from the peptide sequence itself.

Comparative Analysis: MOTS-c vs. SS-31 vs. Humanin

To properly contextualize MOTS-c within mitochondrial research, it is useful to compare its functional profile with other widely studied mitochondrial-targeted compounds. While MOTS-c acts primarily as a retrograde nuclear signaling agent that modulates systemic metabolism and AMPK activation, other compounds target distinct structural components of the mitochondrion.

For instance, SS-31 (Elamipretide) is a cell-permeable tetrapeptide that selectively targets cardiolipin within the inner mitochondrial membrane, optimizing electron transport chain efficiency and reducing ROS generation. Conversely, Humanin is another mitochondrial-derived peptide primarily studied for its neuroprotective and cytoprotective properties against oxidative stress and apoptosis. Researchers interested in mitochondrial bioenergetics often incorporate multiple compounds to study complementary pathways; review our overview of mitochondrial peptides to compare these mechanisms directly.

Reconstitution, Handling, and Laboratory Storage Protocols

Proper handling and storage of lyophilized MOTS-c are necessary to preserve peptide stability and prevent premature enzymatic or hydrolytic degradation. Upon receipt, lyophilized MOTS-c should be stored in a dry, dark environment at -20°C or -80°C for long-term preservation.

When preparing MOTS-c for bench experimentation, follow standard aseptic laboratory protocols:

1. Equilibrate the vial to room temperature prior to reconstitution to minimize condensation inside the container.

2. Reconstitute using sterile Bacteriostatic Water (0.9% benzyl alcohol) for multi-use laboratory protocols or Sterile 0.9% Normal Saline for acute cell culture or in vivo applications.

3. Gently swirl or invert the vial until complete dissolution occurs. Avoid aggressive vortexing or vigorous shaking, as mechanical shear stress can denature delicate peptide structures.

4. Aliquot the reconstituted solution into single-use microcentrifuge tubes to avoid repeated freeze-thaw cycles, which degrade peptide integrity over time.

5. Store reconstituted liquid aliquots at 2°C to 8°C for short-term experimentation (up to 7 days) or -80°C for extended storage.

Why Source Research Compounds from PX1 Research?

PX1 Research is an established USA-based supplier committed to advancing scientific discovery by providing reliable, ultra-pure peptide reagents. Every lot of MOTS-c peptide is manufactured in domestic, GMP-compliant facilities under rigid quality management protocols.

We maintain fully transparent lot traceability and post accessible third-party COAs for every product batch. Orders placed before 3 PM EST Monday through Friday ship same-day from our primary logistics hubs in California and Arizona. Institutional laboratories and academic facilities seeking bulk quantities or custom synthesis services can access scalable volume pricing through our dedicated wholesale program.