TABLE 1.

Activity summary of NR

Substrate	Product monitored	Specific activity
		pmol min−1 mg protein−1
Noroxomaritidinea	Oxomaritinamine	8600 ± 1250
8,9-O-Didemethyloxomaritidine	9-O-Demethyloxomaritinamine	−b
3,4-Dihydroxybenzaldehyde and tyraminea	Norbelladine	21.2 ± 1.2
Isovanillin and tyraminea	4′-O-Methylnorbelladine	5.33 ± 0.21
Vanillin and tyramine	3′-O-Methylnorbelladine	−b
Piperonal and tyramine	4-(2-((1,3-Benzodioxol-5-ylmethyl)amino)ethyl)phenol	−b

^a Measurements are with 500 μm substrate and 1 mm NADPH.

^b Product made but not quantified. Values shown are mean ± S.D. for n = 3.