5-Amino-1MQ FAQ for Laboratory Researchers
This comprehensive technical reference answers core laboratory queries regarding 5-Amino-1MQ (5-amino-1-methylquinolinium), a selective small-molecule inhibitor of nicotinamide N-methyltransferase (NNMT). Designed exclusively for analytical investigators and laboratory personnel, this document details its biochemical targets, cellular NAD+ interactions, reconstitution chemistry, quality verification standards, and storage parameters.
Quick answer
This comprehensive technical reference answers core laboratory queries regarding 5-Amino-1MQ (5-amino-1-methylquinolinium), a selective small-molecule inhibitor of nicotinamide N-methyltransferase (NNMT). Designed exclusively for analytical investigators and laboratory personnel, this document details its biochemical targets, cellular NAD+ interactions, reconstitution chemistry, quality verification standards, and storage parameters.
Key takeaways
- [5-Amino-1MQ](/research-peptides/5-amino-1mq) (5-amino-1-methylquinolinium) is a synthetic membrane-permeable small molecule quinolinium derivative designed to selectively inhibit the cytosolic enzyme nicotinamide N-methyltransferase (NNMT).
- Nicotinamide N-methyltransferase transfers a methyl group from SAM to nicotinamide, producing N1-methylnicotinamide (MNAM) and S-adenosylhomocysteine (SAH).
- Intracellular [NAD+](/research-peptides/nad-plus) is a critical coenzyme required for redox reactions, sirtuin (SIRT1-7) activity, and poly(ADP-ribose) polymerase (PARP) dependent DNA repair mechanisms.
- Mitochondrial dysfunction is frequently characterized by reduced basal respiration, diminished ATP production, and lowered maximal respiratory capacity.
Overview of 5-Amino-1MQ in Preclinical Biochemical Research
5-Amino-1MQ (5-amino-1-methylquinolinium) is a synthetic membrane-permeable small molecule quinolinium derivative designed to selectively inhibit the cytosolic enzyme nicotinamide N-methyltransferase (NNMT). In metabolic and cellular biology, NNMT serves as a master regulator of energy homeostasis by methylating nicotinamide (NAM) using S-adenosylmethionine (SAM) as the methyl donor. By blocking this enzymatic clearance pathway, 5-Amino-1MQ facilitates the retention of intracellular nicotinamide, which is subsequently recycled through the salvage pathway to synthesize nicotinamide adenine dinucleotide (NAD+).
Investigational interest in 5-Amino-1MQ stems from its high selectivity and potency against NNMT without suppressing adjacent methyltransferases or related metabolic enzymes. Preclinical literature demonstrates that high NNMT expression correlates with compromised cellular bioenergetics, diminished NAD+ pools, and reduced oxidative phosphorylation across various tissue models. Consequently, researchers utilize 5-Amino-1MQ to interrogate the biochemical cascades governing cellular respiration, adipocyte remodeling, and mitochondrial maintenance in controlled in vitro and animal models.
Enzymatic Mechanism: Selective NNMT Inhibition
Nicotinamide N-methyltransferase transfers a methyl group from SAM to nicotinamide, producing N1-methylnicotinamide (MNAM) and S-adenosylhomocysteine (SAH). Because MNAM is predominantly excreted, high NNMT activity functions as a metabolic sink, draining nicotinamide reserves that would otherwise fuel the NAD+ salvage pathway via nicotinamide phosphoribosyltransferase (NAMPT). 5-Amino-1MQ acts as a methyltransferase inhibitor, directly binding to the catalytic domain of NNMT.
In cell-free and cell-based enzymatic assays, 5-Amino-1MQ exhibits an IC50 in the micromolar range for NNMT, preventing the methyl transfer reaction without interfering with upstream or downstream enzymes such as NAMPT, NMNAT, or PARP family proteins. Investigators studying NAD+ precursor research utilize 5-Amino-1MQ to block this degradation pathway, evaluating how altered methyl donor availability (SAM/SAH ratios) influences epigenetic histone methylation and metabolic gene expression in primary cell lines.
Impact on Cellular NAD+ Dynamics and Salvage Pathways
Intracellular NAD+ is a critical coenzyme required for redox reactions, sirtuin (SIRT1-7) activity, and poly(ADP-ribose) polymerase (PARP) dependent DNA repair mechanisms. As cells age or undergo metabolic stress, NNMT expression often rises, depleting the NAM substrate pool required for NAD+ synthesis. In vitro assays demonstrate that treating high-NNMT-expressing cell lines with 5-Amino-1MQ results in a statistically significant increase in baseline intracellular NAD+ concentrations.
By preserving the cytosolic pool of nicotinamide, 5-Amino-1MQ restores substrate flux through NAMPT and NMNAT, effectively boosting NAD+ availability without requiring exogenous precursor loading. Researchers comparative-testing small molecules and research peptides frequently combine or compare 5-Amino-1MQ with direct NAD+ intermediates to observe differences in sirtuin activation, acetyl-CoA flux, and mitochondrial biogenesis across cultured myoblasts and hepatocytes.
Mitochondrial Bioenergetics and Oxygen Consumption Rate (OCR)
Mitochondrial dysfunction is frequently characterized by reduced basal respiration, diminished ATP production, and lowered maximal respiratory capacity. Because SIRT1 and SIRT3 require NAD+ as an obligate substrate to deacetylate key mitochondrial proteins (such as PGC-1α and Isocitrate Dehydrogenase 2), elevated NAD+ levels downstream of NNMT inhibition directly modulate mitochondrial dynamics.
In extracellular flux analyzer (Seahorse) experiments, cells cultured with 5-Amino-1MQ demonstrate marked increases in Oxygen Consumption Rate (OCR) and spare respiratory capacity. These mitochondrial bioenergetics data indicate enhanced electron transport chain efficiency and increased fatty acid oxidation, providing a mechanistic foundation for investigating metabolic rate regulation in obesity and neuromuscular degeneration rodent models.
Adipocyte Remodeling and Preclinical Fat Metabolism Research
Adipose tissue expressed high concentrations of NNMT in rodent models of diet-induced obesity. Elevated adipocyte NNMT activity alters energy expenditure by suppressing futile metabolic cycles and reducing basal metabolic rate. Preclinical studies administering 5-Amino-1MQ to high-fat diet-fed mice observed a marked reduction in white adipose tissue (WAT) mass, decreased adipocyte soma volume, and elevated thermogenic marker expression (such as UCP-1) without modifying caloric intake.
These findings position 5-Amino-1MQ as a valuable tool for investigating lipolysis, adipogenesis arrest, and systemic metabolic homeostasis. Investigators studying lipid signaling regularly analyze serum triglycerides, free fatty acids, and inflammatory cytokines (IL-6, TNF-alpha) in rodent models receiving 5-Amino-1MQ to map the downstream physiological effects of NNMT blockade on peripheral insulin sensitivity.
Comparative Analysis: 5-Amino-1MQ vs. Other Metabolic Compounds
When evaluating agents that modulate cellular metabolism, energy expenditure, or body composition in laboratory models, researchers often contrast small molecule NNMT inhibitors like 5-Amino-1MQ against mitochondrial and lipolytic research peptides. While 5-Amino-1MQ operates strictly via intracellular enzyme inhibition and NAD+ preservation, mitochondrial-derived peptides like MOTS-c regulate metabolic homeostasis by translocating to the nucleus under stress to regulate adaptive nuclear gene expression. Concurrently, growth hormone fragment analogues such as AOD-9604 act through beta-adrenergic activation and hGH receptor pathways to stimulate lipolysis without affecting NNMT or cellular NAD+ flux.
Furthermore, hypothalamic-pituitary-axis secretagogues like Tesamorelin promote endogenous growth hormone release to alter body composition via systemic IGF-1 cascades. Unlike peptide hormones that rely on membrane receptor activation, 5-Amino-1MQ is a cell-permeable small molecule that alters fundamental intracellular co-factor ratios (NAD+/NADH and SAM/SAH). Choosing between or combining these distinct classes depends on whether an assay targets systemic endocrine pathways or intracellular bioenergetic salvage systems.
Analytical Quality Verification: HPLC, Mass Spectrometry, and Endotoxin Limits
To ensure high experimental reproducibility, PX1 Research subjects every synthesis lot of 5-Amino-1MQ to stringent analytical protocols. Chemical identity and exact molecular weight (233.11 g/mol as the free cation) are verified via Electrospray Ionization Mass Spectrometry (ESI-MS). Chromatographic purity is quantified using High-Performance Liquid Chromatography (HPLC) with photodiode array detection, confirming chemical purity equal to or exceeding 98.0%.
Because small molecule contaminants and bacterial endotoxins can confound cell viability assays and alter cytokine expression in vitro, all lots undergo quantitative Chromogenic Recombinant Factor C (rFC) or LAL endotoxin testing. Batch-specific Certificates of Analysis (COAs) detailing nuclear magnetic resonance (1H-NMR) spectra, HPLC chromatograms, and endotoxin levels (<0.01 EU/mg) are accessible for every lot supplied via our HPLC and Mass Spectrometry validation library.
Solvent Compatibility and Laboratory Reconstitution Protocols
Unlike standard hydrophilic peptides, 5-Amino-1MQ is a salt-form small molecule quinolinium compound with specific solubility characteristics. For in vitro stock solutions, 5-Amino-1MQ exhibits superior solubility in dimethyl sulfoxide (DMSO) and dimethylformamide (DMF), reaching concentrations up to 20–50 mg/mL. Stock solutions prepared in DMSO can subsequently be diluted into aqueous cell culture media (e.g., DMEM or RPMI), provided final DMSO concentrations remain below 0.1% v/v to eliminate solvent-induced cytotoxicity.
For aqueous-only or in vivo formulations, 5-Amino-1MQ shows moderate solubility in sterile physiological saline (0.9% NaCl) and phosphate-buffered saline (PBS, pH 7.4), though mild sonication or gentle warming (37°C) may be required for complete dissolution at higher concentrations (>5 mg/mL). Reconstitution should always be conducted under sterile laminar flow hoods using analytical-grade, gas-degassed solvents.
Storage Parameters and Degradation Safeguards
5-Amino-1MQ in dry, lyophilized/crystalline powder form demonstrates exceptional chemical stability when stored under proper conditions. Upon arrival, solid material should be stored at -20°C in a desiccated, light-protected container. Light exposure should be minimized, as quinolinium structures can undergo slow photo-oxidation when exposed to ambient ultraviolet light over extended durations.
Liquid stock solutions prepared in pure anhydrous DMSO remain stable at -80°C for up to 6 months when split into single-use aliquots. Repeated freeze-thaw cycles must be avoided to prevent compound precipitation and chemical degradation. Aqueous stock solutions exhibit shorter stability windows and should be prepared fresh prior to experimental execution or utilized within 24–48 hours when maintained at 4°C.
Procurement, Compliance, and Wholesale Lab Sourcing
PX1 Research synthesizes and packages 5-Amino-1MQ within ISO 17025 accredited and GMP-compliant domestic facilities located in California and Arizona. Every order ships same-day when placed Monday through Friday before cut-off thresholds, ensuring rapid transit times to minimize environmental exposure.
Institutional laboratories requiring multi-gram quantities or recurring delivery schedules for high-throughput screening assays can manage their orders directly through the PX1 Research wholesale institutional portal. All materials are strictly sold for laboratory research, analytical testing, and in vitro or animal experimentation—never for human or clinical consumption.
Frequently Asked Questions
What is 5-Amino-1MQ and what is its primary target in laboratory research?
5-Amino-1MQ (5-amino-1-methylquinolinium) is a selective small-molecule inhibitor targeting nicotinamide N-methyltransferase (NNMT). It is studied in metabolic research to prevent the enzymatic degradation of nicotinamide and elevate intracellular NAD+ levels.
How does 5-Amino-1MQ influence cellular NAD+ pools?
By inhibiting NNMT, 5-Amino-1MQ blocks the methylation and clearance of nicotinamide (NAM) into N1-methylnicotinamide. This preserves the intracellular NAM substrate pool, allowing the NAMPT salvage pathway to generate higher concentrations of NAD+.
What analytical purity standards apply to PX1 Research 5-Amino-1MQ?
PX1 Research requires all 5-Amino-1MQ lots to achieve ≥98.0% purity as determined by High-Performance Liquid Chromatography (HPLC) and Mass Spectrometry (MS). Every lot is accompanied by a batch-specific Certificate of Analysis.
What endotoxin levels are verified for 5-Amino-1MQ batches?
Each batch undergoes rigorous endotoxin quantification using LAL/rFC assays, maintaining levels strictly below 0.01 EU/mg to prevent confounding immune or inflammatory responses in cell culture and animal models.
What is the recommended storage temperature for solid 5-Amino-1MQ?
Lyophilized or crystalline 5-Amino-1MQ powder should be stored at -20°C in a dry, desiccated container protected from light. Under these conditions, the solid compound remains stable for up to 24 months.
Which solvents are best suited for reconstituting 5-Amino-1MQ?
5-Amino-1MQ dissolves readily in organic solvents such as DMSO or DMF at concentrations up to 20–50 mg/mL. It is also soluble in sterile saline or PBS at lower concentrations with mild warming or sonication.
How does 5-Amino-1MQ differ from peptide metabolic regulators like MOTS-c or AOD-9604?
5-Amino-1MQ is a small molecule that directly inhibits cytosolic NNMT to boost cellular NAD+. In contrast, MOTS-c is a mitochondrial-derived peptide regulating nuclear gene transcription, and AOD-9604 is a lipolytic peptide fragment acting via adrenergic/growth hormone pathways.
Is 5-Amino-1MQ stable in aqueous cell culture media?
Yes, stock solutions dissolved in DMSO can be diluted into aqueous culture media to a final working concentration (ensuring DMSO <0.1% v/v). Aqueous working solutions should be prepared fresh or used within 24–48 hours at 4°C.
Does 5-Amino-1MQ affect sirtuin enzyme activity?
Preclinical data indicate that by increasing intracellular NAD+ levels, 5-Amino-1MQ indirectly promotes the deacetylase activity of NAD+-dependent sirtuins such as SIRT1 and SIRT3, supporting mitochondrial biogenesis.
Where is PX1 Research 5-Amino-1MQ synthesized and shipped from?
All 5-Amino-1MQ supplied by PX1 Research is synthesized in USA-based GMP-compliant and ISO 17025 accredited facilities, with orders fulfilled same-day (M–F) from distribution hubs in California and Arizona.
What documentation is provided with institutional purchases of 5-Amino-1MQ?
Every shipment includes a lot-specific Certificate of Analysis (COA) containing HPLC chromatograms, mass spectra, purity percentages, appearance, safety data sheets (SDS), and endotoxin testing results.
How can academic and corporate labs establish bulk accounts for 5-Amino-1MQ?
Qualified research facilities can establish high-volume procurement accounts by applying through the PX1 Research wholesale portal, granting access to bulk pricing tiers and reserved lot manufacturing.
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.