MetaCyc Pathway: NAD de novo biosynthesis I (from aspartate) in Rhodosporidium toruloides IFO0880

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L-aspartate oxidase:
L-aspartate + dioxygen→2-iminosuccinate + hydrogen peroxide + H+ (EC 1.4.3.16)
No genes
Quinolinate synthase:
2-iminosuccinate + glycerone phosphate→quinolinate + phosphate + 2 H2O (EC 2.5.1.72)
No genes
Nicotinate-nucleotide diphosphorylase (carboxylating) (in reverse):
quinolinate + 2 H+ + 5-phospho-α-D-ribose 1-diphosphate→β-nicotinate D-ribonucleotide + CO2 + diphosphate (EC 2.4.2.19)
mRNA_1963 (10331)
Nicotinate-nucleotide adenylyltransferase:
β-nicotinate D-ribonucleotide + ATP + H+→nicotinate adenine dinucleotide + diphosphate (EC 2.7.7.18)
mRNA_2062 (10430)
NAD(+) synthase (glutamine-hydrolyzing):
nicotinate adenine dinucleotide + ATP + L-glutamine + H2O→NAD+ + AMP + L-glutamate + diphosphate + H+ (EC 6.3.5.1)
mRNA_915 (9283)
NAD(+) synthase:
nicotinate adenine dinucleotide + ammonium + ATP→NAD+ + AMP + diphosphate + H+ (EC 6.3.1.5)
mRNA_915 (9283)

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Candidate genes for each reaction are identified from best hits to MetaCyc; by matching EC numbers (which are assigned by TIGRFam, SEED, or best hits to KEGG); or by matching SEED roles to KEGG reactions to MetaCyc reactions. See the "Protein" tab of each gene for more information