Table 6.

Representative N-acetyltransferase (NAT) activities^a in skin of various mammalian species

Substrate	Human	Rat	Mouse	Pig
Para-aminobenzoic acid	0.45 ± 0.17	3–6	+
Para-phenylenediamine	0.41–3.68	+ (Tentative)		+ (Tentative)
Para-aminophenol	+	+ (Tentative)		+ (Tentative)
Para-toluidine	0.63–3.03
2-Aminofluorene		ca. 1	ca.3

More examples and references in the text; only constitutive activities

^anmol product/mg cytosolic protein/min