2.4.2.19	nicotinate-nucleotide diphosphorylase (carboxylating)	NAD biosynthesis from 2-amino-3-carboxymuconate semialdehyde	
2.7.7.18	nicotinate-nucleotide adenylyltransferase	NAD biosynthesis from 2-amino-3-carboxymuconate semialdehyde	
6.3.5.1	NAD+ synthase (glutamine-hydrolysing)	NAD biosynthesis from 2-amino-3-carboxymuconate semialdehyde