Pyridine nucleotide formation from tryptophan and niacin.
D009525:Niacin / Q000378:metabolism*; D009711:Nucleotides; D014364:Tryptophan / Q000378:metabolism*
D009711:Nucleotides; D009525:Niacin; D014364:Tryptophan
NICOTINIC ACID/metabolism; NUCLEOTIDES; TRYPTOPHAN/metabolism