NNMT enzyme
NNMT transfers a methyl group from S-adenosylmethionine to nicotinamide. 5-Amino-1MQ inhibits that enzyme in experimental systems, reducing formation of methylated nicotinamide products.

Compound guide
A pathway-focused guide to molecular mechanisms, published evidence, and the limits of interpretation.
Overview
5-Amino-1MQ is a small-molecule inhibitor used to study nicotinamide N-methyltransferase (NNMT), an enzyme involved in nicotinamide and methyl-donor metabolism.
NNMT inhibition is investigated for effects on NAD-related metabolism, methylation balance, adipocyte biology, glucose handling, and liver-metabolism models.
Published outcome data are predominantly preclinical, including diet-induced obesity models in mice. Human benefits and long-term safety have not been established.
Research model
These receptors, enzymes, and signaling networks define the primary laboratory questions associated with this research material.
NNMT transfers a methyl group from S-adenosylmethionine to nicotinamide. 5-Amino-1MQ inhibits that enzyme in experimental systems, reducing formation of methylated nicotinamide products.
Because nicotinamide can be recycled into NAD+, reducing one route of nicotinamide disposal could alter the precursor pool available for NAD-related metabolism. The actual effect depends on many competing enzymes.
Mouse and cell studies associate NNMT inhibition with changes in adipose energy expenditure, methyl-donor balance, and metabolic gene activity.
Research interpretation
NNMT transfers a methyl group from S-adenosylmethionine to nicotinamide.
Because nicotinamide can be recycled into NAD+, reducing one route of nicotinamide disposal could alter the precursor pool available for NAD-related metabolism.
Mouse and cell studies associate NNMT inhibition with changes in adipose energy expenditure, methyl-donor balance, and metabolic gene activity.
Published outcome data are predominantly preclinical, including diet-induced obesity models in mice. Human benefits and long-term safety have not been established.
Read the evidence
One important note
Published intervention findings are from laboratory and animal models, including mouse studies of diet-related obesity and metabolic function. Controlled human outcome data are not established.
This guide summarizes molecular mechanisms, published evidence, and evidence limits in everyday language. It is educational information, not medical advice or instructions for personal use. Products offered on this site are intended exclusively for laboratory research and are not for human or veterinary use.