5-Amino-1MQ Research
5-Amino-1MQ is a small-molecule inhibitor of nicotinamide N-methyltransferase (NNMT) studied in laboratory models of adipocyte metabolism and energy homeostasis. Supplied for laboratory research use only.
Also known as: 5-Amino-1-methylquinolinium · NNMT inhibitor
5-Amino-1MQ is a cell-permeable small molecule that inhibits NNMT, the enzyme that methylates nicotinamide to form 1-methylnicotinamide while consuming a methyl donor. NNMT is overexpressed in adipose tissue in obese and diabetic research models. By inhibiting NNMT, 5-Amino-1MQ is studied for its effects on intracellular nicotinamide and NAD+ availability and on adipocyte energy metabolism.
Mechanism of Action
In research models, NNMT consumes nicotinamide (a NAD+ precursor) and S-adenosylmethionine to produce 1-methylnicotinamide, draining substrates that feed NAD+ salvage and cellular methylation. Elevated NNMT activity in adipose tissue is linked in research literature to a metabolically unfavorable state. 5-Amino-1MQ inhibits this enzyme, and investigators study whether that inhibition preserves intracellular nicotinamide and NAD+ pools while shifting adipocyte energy expenditure. NNMT expression is itself regulated by glucose availability through mTOR- and AMPK-dependent mechanisms, so 5-Amino-1MQ is frequently used to dissect the NNMT–NAD+–energy-metabolism axis in cultured adipocytes and experimental tissue. Its small size and cell permeability make it a practical chemical probe for these pathways.
Research Applications
5-Amino-1MQ is used in experimental and cell-based research focused on adipocyte biology, energy expenditure, and metabolic disorders associated with NNMT overexpression. Research studies in experimental models of diet-induced obesity examine NNMT inhibition as a strategy to influence body composition and metabolic markers, while cultured 3T3-L1 adipocytes serve as a common in-vitro system for measuring downstream effects on nicotinamide and NAD+. The compound also appears in research probing the 1-methylnicotinamide signaling axis and its interaction with sirtuins. It is supplied exclusively for laboratory research; it is not offered for human use, weight management, or any therapeutic application.
The NNMT–NAD+ Connection
Interest in 5-Amino-1MQ stems from the position of NNMT at the intersection of NAD+ metabolism and cellular methylation. Because NNMT siphons nicotinamide away from the NAD+ salvage pathway, its overactivity can lower NAD+ availability in research systems, indirectly affecting sirtuin and PARP function. Inhibiting NNMT is therefore studied as a complementary approach to direct NAD+ repletion. The enzyme's product, 1-methylnicotinamide, has its own reported signaling roles, adding complexity that researchers untangle using selective inhibitors like 5-Amino-1MQ. This dual relevance to both NAD+ economy and methyl-group balance makes the compound a useful tool for connecting metabolic, epigenetic, and longevity-related research questions.
Applications at a glance
- Chemical probe for NNMT enzyme inhibition studies
- Tool in adipocyte energy-metabolism research
- Investigative compound in NAD+ salvage pathway models
- Reference inhibitor in 1-methylnicotinamide signaling research