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spontaneous Nicotinic acid adenine dinucleotide Water Adenosine triphosphate Pyrophosphate NADSYN1 Water L-3-Hydroxykynurenine Formic acid pyrophosphate 3-Hydroxyanthranilic acid NADPH Oxygen Hydrogen Ion L-Tryptophan HAAO N'-Formylkynurenine L-Glutamic acid Adenosine triphosphate L-Kynurenine Phosphoribosyl pyrophosphate Pyrophosphate NAD TDO2 Adenosine monophosphate Quinolinic acid 2-Amino-3-carboxymuconic acid semialdehyde QPRT NADP NMNAT1 Carbon dioxide AFMID Water KYNU Nicotinic acid mononucleotide KMO L-Alanine L-Glutamine Hydrogen Ion Water Hydrogen Ion Hydrogen Ion Hydrogen Ion Hydrogen Ion Oxygen Hydrogen Ion Water Hydrogen Ion Hydrogen Ion Hydrogen Ion Oxygen Hydrogen Ion Hydrogen Ion
Description
This is a general pathway for NAD biosynthesis in eukaryotes, where tryptophan is eventually converted into NAD. Though through recent studies it seems that NAD biosynthesis through tryptophan also occurs in some prokaryotes.
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