Mots-C Peptide Supplier
Navigating the selection of a reliable MOTS-c peptide supplier requires strict evaluation of analytical verification, lot-to-lot consistency, and manufacturing compliance. PX1 Research supplies high-purity synthetic MOTS-c for rigorous in vitro and preclinical laboratory research, backed by comprehensive third-party testing.
Quick answer
Navigating the selection of a reliable MOTS-c peptide supplier requires strict evaluation of analytical verification, lot-to-lot consistency, and manufacturing compliance. PX1 Research supplies high-purity synthetic MOTS-c for rigorous in vitro and preclinical laboratory research, backed by comprehensive third-party testing.
Key takeaways
- A qualified [MOTS-c](/research-peptides/mots-c) peptide supplier provides researchers with fully characterized, high-purity synthesized peptides manufactured under stringent quality controls.
- [MOTS-c](/research-peptides/mots-c) (Mitochondrial Open Reading Frame of the 12S rRNA Type-c) represents a novel class of bioactive signaling molecules known as mitochondrial-derived peptides (MDPs).
- Preclinical investigations have identified [MOTS-c](/research-peptides/mots-c) as a key regulator of systemic metabolic homeostasis.
- [MOTS-c](/research-peptides/mots-c) is a 16-amino-acid peptide with the primary sequence Met-Arg-Trp-Gln-Glu-Met-Gly-Tyr-Ile-Phe-Tyr-Pro-Arg-Lys-Leu-Arg (MRWQEMGYIFYPRKLR).
Evaluating a Verified MOTS-c Peptide Supplier
A qualified MOTS-c peptide supplier provides researchers with fully characterized, high-purity synthesized peptides manufactured under stringent quality controls. Selecting a trusted vendor requires independent third-party analytical verification—specifically High-Performance Liquid Chromatography (RP-HPLC) and Mass Spectrometry (ESI-MS)—alongside documented endotoxin testing. These verification steps guarantee sequence identity and ensure that experimental assays are free from non-specific cellular interference caused by contaminants.
PX1 Research serves as a premier USA-based supplier of research peptides, producing synthetic mitochondrial-derived peptides under ISO 17025 accredited standards and GMP-compliant facilities. Every batch of our MOTS-c peptide is assigned a lot-specific Certificate of Analysis (COA), allowing principal investigators and procurement officers to confirm exact purity metrics, mass verification, and ultra-low endotoxin thresholds prior to laboratory execution.
Biological Mechanism: The Mitochondrial-Derived Peptide Framework
MOTS-c (Mitochondrial Open Reading Frame of the 12S rRNA Type-c) represents a novel class of bioactive signaling molecules known as mitochondrial-derived peptides (MDPs). Encoded within the mitochondrial genome rather than the nuclear DNA, MOTS-c plays a pivotal role in retrograde signaling—transmitting structural and metabolic status cues from the mitochondria directly to the nucleus during metabolic stress.
In vitro models demonstrate that upon cellular stress or metabolic perturbation, MOTS-c translocates to the nucleus where it binds to specific promoter regions and interacts with transcription factors such as NRF2 (Nuclear Factor Erythroid 2-Related Factor 2). This activation triggers a cascade of gene expressions linked to antioxidant responses, cellular homeostasis, and adaptive metabolic remodeling. Understanding this nuclear-mitochondrial crosstalk remains a central focus of modern cell biology research.
Preclinical Applications: Metabolic Regulation and Exercise Capacity
Preclinical investigations have identified MOTS-c as a key regulator of systemic metabolic homeostasis. In rodent models of metabolic dysfunction, administration of MOTS-c has been observed to enhance insulin sensitivity, optimize glucose uptake in skeletal muscle tissue, and modulate fatty acid oxidation pathways. These effects appear to be mediated via the activation of 5'-AMP-activated protein kinase (AMPK), a central cellular energy sensor.
Furthermore, animal studies suggest that MOTS-c plays a significant role in exercise-capacity research. Murine studies indicate that MOTS-c expression increases transiently following physical exertion, and exogenous introduction in research models has been linked to augmented physical performance, enhanced oxygen consumption, and reduced accumulation of metabolic waste products. These findings position MOTS-c as a primary candidate for investigations targeting metabolic inflexibility, age-related decline, and physical endurance pathways. Researchers evaluating these signaling networks can review extended literature within our peptide research library.
Molecular Structure and Synthesis Standards of MOTS-c
MOTS-c is a 16-amino-acid peptide with the primary sequence Met-Arg-Trp-Gln-Glu-Met-Gly-Tyr-Ile-Phe-Tyr-Pro-Arg-Lys-Leu-Arg (MRWQEMGYIFYPRKLR). Due to its hydrophobic residue composition and potential for oxidative aggregation at specific methionine residues, solid-phase peptide synthesis (SPPS) of MOTS-c demands precise coupling reagents and specialized purification protocols.
To ensure maximal biochemical stability, PX1 Research utilizes advanced automated Fmoc solid-phase synthesis methods. Following cleavage and deprotection, crude MOTS-c undergoes multi-step preparative reverse-phase HPLC to yield a refined lyophilized powder. This meticulous processing minimizes truncation sequences, oxidation artifacts, and residual trifluoroacetic acid (TFA) salts, providing investigators with a consistent chemical foundation for sensitive cellular assays.
Analytical Rigor: RP-HPLC, Mass Spectrometry, and Endotoxin Limits
To satisfy the rigorous demands of institutional research, supplier transparency must extend beyond simple self-attestation. High-Performance Liquid Chromatography (RP-HPLC) is utilized to measure chemical purity by separating the target 16-mer peptide from synthesis byproducts. A minimum purity threshold of 98.0% to 99.0% is essential to avoid non-specific receptor binding or toxic artifacts in culture.
Electrospray Ionization Mass Spectrometry (ESI-MS) confirms the exact molecular weight of the synthesized chain (monoisotopic mass approximately 2174.6 Da), validating proper amino acid assembly. Crucially for cell culture and in vivo animal models, endotoxin testing via Limulus Amebocyte Lysate (LAL) assays ensures that lipopolysaccharide contamination is maintained below strictly regulated research limits (<0.01 EU/mg), preventing confounding inflammatory cascades in experimental data.
Reconstitution, Handling, and Storage Protocols for Laboratory Use
Proper handling procedures are critical to maintaining the structural integrity of synthetic MOTS-c once delivered to the laboratory facility. Lyophilized MOTS-c should be stored upon arrival at -20°C or -80°C in a manual defrost freezer, protected from light exposure to prevent oxidative degradation.
For laboratory reconstitution, researchers should allow the vial to equilibrate to room temperature inside a laminar flow hood before opening to prevent condensation accumulation. Reconstitution is typically performed using sterile Bacteriostatic Water or phosphate-buffered saline (PBS, pH 7.4). Gentle agitation by swirling is recommended; vigorous vortexing or sonication should be avoided as shear forces can induce peptide denaturing or aggregation. Reconstituted aliquots should be frozen at -80°C to avoid repeated freeze-thaw cycles. Detailed protocols are documented across our research peptide guides.
Comparative Analysis: MOTS-c vs. Complementary Research Peptides
When designing preclinical protocols investigating mitochondrial kinetics and cellular energetics, researchers frequently contrast MOTS-c with other targeted signaling molecules. While MOTS-c operates primarily via nuclear-mitochondrial translocation and AMPK activation, compounds like SS-31 peptide act directly within the inner mitochondrial membrane by binding cardiolipin to reduce electron leak and reactive oxygen species (ROS) production.
Similarly, Humanin represents another classic mitochondrial-derived peptide investigated for cytoprotective and anti-apoptotic signaling, whereas metabolic modulators such as AOD-9604 focus specifically on lipid metabolic pathways via human growth hormone fragment mechanisms. Comparing these compounds within parallel research arms allows laboratories to map distinct nodes of metabolic control. Academic facilities acquiring reagents across multiple pathways can utilize our bulk lab ordering portal for streamlined procurement.
Why Select PX1 Research as Your MOTS-c Peptide Supplier
PX1 Research stands out as a high-tier domestic supplier committed exclusively to the advancement of scientific discovery. By maintaining 100% USA-based synthesis, quality assurance, and fulfillment workflows, we mitigate the risk of supply chain delays, batch inconsistencies, and compromised cold-chain transit times that frequently affect international shipments.
Our facility protocols enforce lot-by-lot third-party laboratory verification. Every shipment of MOTS-c includes full public access to analytical spectrum data, confirming purity, identity, and safety parameters. With same-day fulfillment options operating out of California and Arizona facilities, PX1 Research provides the speed, reliability, and precision required by leading academic, biotechnology, and institutional laboratories.
Frequently Asked Questions
What is the primary role of MOTS-c in preclinical research?
MOTS-c is a mitochondrial-derived peptide studied primarily for its roles in mitochondrial retrograde signaling, cellular metabolic regulation, insulin sensitivity pathways, and exercise-capacity responses in preclinical animal and cell models.
How does PX1 Research verify the purity of its MOTS-c peptide?
PX1 Research verifies every lot of MOTS-c using third-party analytical testing, including RP-HPLC to confirm >98% chemical purity and ESI-MS to verify exact molecular weight and sequence identity. Endotoxin assays are also conducted to ensure suitability for laboratory research.
What is the recommended storage temperature for lyophilized MOTS-c?
Lyophilized MOTS-c should be stored at -20°C or -80°C in a desiccated environment protected from light. Under these conditions, the dry peptide remains stable for extended laboratory storage.
How should MOTS-c be reconstituted for in vitro assays?
MOTS-c should be reconstituted under sterile conditions using sterile Bacteriostatic Water or sterile PBS (pH 7.4). The solution should be gently swirled rather than vortexed to avoid shear stress and peptide aggregation.
Does PX1 Research provide a Certificate of Analysis (COA) with MOTS-c?
Yes. Every batch of MOTS-c supplied by PX1 Research includes a lot-specific Certificate of Analysis detailing HPLC purity graphs, Mass Spectrometry results, and endotoxin verification.
Is MOTS-c supplied by PX1 Research intended for human consumption?
No. All products offered by PX1 Research, including MOTS-c, are strictly for in vitro, animal, and preclinical laboratory research use only. They are not intended for human or clinical applications, medical diagnosis, or therapeutic use.
What compounds are typically studied alongside MOTS-c in metabolic research?
Researchers frequently study MOTS-c alongside other mitochondrial-targeted compounds such as SS-31, Humanin, and metabolic fragments like AOD-9604 to evaluate broad cellular energetics and signaling networks.
Where does PX1 Research manufacture and ship its peptides from?
PX1 Research manufactures its peptides in USA-based, ISO 17025 accredited, and GMP-compliant facilities. Orders are fulfilled directly from distribution centers located in California and Arizona.
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All products are sold strictly for laboratory and research use only. Not for human or veterinary use, diagnosis, treatment or consumption. Statements have not been evaluated by the FDA.