5-Amino-1MQ Research Guide: NNMT Inhibition and the NAD+ Connection

For in-vitro and laboratory research only. 5-Amino-1MQ is a research-grade small molecule, not an approved therapeutic. No medical use is implied.

5-Amino-1MQ (5-Amino-1-methylquinolinium) is a small-molecule inhibitor of nicotinamide N-methyltransferase (NNMT), the enzyme that methylates nicotinamide to produce 1-methylnicotinamide (MNAM). The research interest is downstream: NNMT activity depletes the methyl-donor pool (SAM) and the NAD+ precursor pool simultaneously, so inhibiting it changes the cellular methylation and NAD+ landscape in ways that have been explored in metabolic-research literature. Available as 5-Amino-1MQ 50mg.

Mechanism in one paragraph

NNMT consumes S-adenosylmethionine (SAM, the universal methyl donor) and nicotinamide (an NAD+ precursor) to generate MNAM. In tissues that highly express NNMT — notably adipose tissue and certain tumor cell lines — this activity is reported in published literature to deplete intracellular SAM and reduce nicotinamide salvage into NAD+. Inhibiting NNMT with 5-Amino-1MQ reverses these flows in cell-culture models.

Mechanisms studied in published literature

• Adipocyte energy metabolism. The most-cited mechanistic literature on 5-Amino-1MQ reports increased intracellular SAM and NAD+ in cultured adipocytes, with effects on lipolysis markers in cell-culture work.
• Tumor cell biology. NNMT is overexpressed in several cancer types; cell-culture studies have explored NNMT inhibition in those contexts.
• Methylation landscape. Studies measuring SAM/SAH ratios after NNMT inhibition report changes consistent with a restored methylation-donor pool.

Why it's discussed alongside NAD+

Published reviews frame NNMT inhibition and direct NAD+ supplementation as two strategies aimed at the same downstream readout — cellular NAD+ availability. Direct supplementation uses NAD+ 500mg, NAD+ 1000mg, or related precursors. NNMT inhibition with 5-Amino-1MQ instead reduces the catabolism of nicotinamide upstream of the salvage pathway. The two approaches are sometimes studied in parallel in cell-culture protocols.

Related metabolic-research compounds

For other peptides explored in the same metabolic-research category, see our overviews of MOTS-c and GLP-1 research peptides.

Handling notes

5-Amino-1MQ is a small molecule rather than a peptide and is supplied as a stable lyophilized or crystalline powder. Standard cold/dark storage applies; for general guidance see our peptide storage guide.

What to verify on the COA

• Chemical identity — CAS number where available, plus molecular formula.
• Purity ≥98% (HPLC or HPLC/UV).
• Mass spec match for the expected MW.

For COA fields see how to read a peptide COA.

Reminder: All content above is for in-vitro and laboratory research. Products are not intended for human use.