1.2.1.38	N-acetyl-gamma-glutamyl-phosphate reductase	L-ornithine biosynthesis I	-	-	
2.3.1.1	amino-acid N-acetyltransferase	L-ornithine biosynthesis I	-	-	
2.6.1.11	acetylornithine transaminase	L-ornithine biosynthesis I	-	-	
2.7.2.8	acetylglutamate kinase	L-ornithine biosynthesis I	-	-	
3.5.1.16	acetylornithine deacetylase	L-ornithine biosynthesis I	-	-