The nicotinamide N-methyltransferase (NNMT) protein catalyzes the methylation of nicotinamide using S-adenosyl-L-methionine to form N1-methylnicotinamide NNMT affects pluripotent embryonic stem cell development and acts as a metabolic regulator affecting adipose tissue energy expenditure gluconeogenesis and cholesterol biosynthesis Nicotinamide N-Methyltransferase/NNMT Protein Human (His) is the recombinant human-derived Nicotinamide N-Methyltransferase/NNMT protein expressed by E coli with C-His labeled tag