1.1.1.315	11-cis-retinol dehydrogenase	frontal lobe	3% mRNA expression of Rdh5 compared to liver	690797	
1.4.3.5	pyridoxal 5'-phosphate synthase	frontal lobe	12.4% of the activity in liver	655483	
1.6.1.2	NAD(P)+ transhydrogenase (Re/Si-specific)	frontal lobe	-	658473	
2.1.1.233	[phosphatase 2A protein]-leucine-carboxy methyltransferase	frontal lobe	-	757463	
2.1.1.6	catechol O-methyltransferase	frontal lobe	-	441535	
2.6.1.7	kynurenine-oxoglutarate transaminase	frontal lobe	-	636627	
2.7.7.1	nicotinamide-nucleotide adenylyltransferase	frontal lobe	cortex	660960	
3.1.4.53	3',5'-cyclic-AMP phosphodiesterase	frontal lobe	-	687488	
3.3.2.9	microsomal epoxide hydrolase	frontal lobe	-	753726	
3.4.11.21	aspartyl aminopeptidase	frontal lobe	29 and 33 months old rats show a 50% decrease of enzymatic activity	137169	
3.4.22.B25	calpain 5	frontal lobe	strong expression	663847	
3.5.1.3	omega-amidase	frontal lobe	-	288894	
3.6.1.13	ADP-ribose diphosphatase	frontal lobe	-	209946, 655991	
4.1.1.15	glutamate decarboxylase	frontal lobe	-	700956	
5.1.1.18	serine racemase	frontal lobe	-	-, 703957	
7.2.2.14	P-type Mg2+ transporter	frontal lobe	-	698035