MetaCyc Pathway: NAD de novo biosynthesis II (from tryptophan) in Rhodosporidium toruloides IFO0880

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Tryptophan 2,3-dioxygenase:
L-tryptophan + dioxygen→N-Formyl-L-kynurenine (EC 1.13.11.11; 1.13.11.52)
No genes
Arylformamidase:
N-Formyl-L-kynurenine + H2O→L-kynurenine + formate + H+ (EC 3.5.1.9)
No genes
Kynurenine 3-monooxygenase:
L-kynurenine + NADPH + dioxygen + H+→3-hydroxy-L-kynurenine + NADP+ + H2O (EC 1.14.13.9)
mRNA_899 (9267)
Kynureninase:
3-hydroxy-L-kynurenine + H2O→3-hydroxyanthranilate + L-alanine + H+ (EC 3.7.1.3)
mRNA_357 (8725)
3-hydroxyanthranilate 3,4-dioxygenase:
3-hydroxyanthranilate + dioxygen→2-amino-3-carboxymuconate-6-semialdehyde (EC 1.13.11.6)
mRNA_234 (8602)
2-amino-3-carboxymuconate-6-semialdehyde→quinolinate + H+ + H2O (spontaneous)
mRNA_234 (8602)
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)

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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