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Tryptophan--tRNA
ligase,
cytoplasmic
Tryptophan
2,3-dioxygenase
Kynureninase
Kynurenine
formamidase
Kynurenine
formamidase
Kynureninase
Kynurenine/alpha-
aminoadipate
aminotransferase,
mitochondrial
Kynurenine
3-monooxygenase
Kynureninase
Catalase
Kynurenine/alpha-
aminoadipate
aminotransferase,
mitochondrial
3-
hydroxyanthranilate
3,4-dioxygenase
2-amino-3-
carboxymuconate-
6-semialdehyde
decarboxylase
Tryptophan
5-hydroxylase 1
Aromatic-L-
amino-acid
decarboxylase
Kynurenine
3-monooxygenase
Aldehyde
dehydrogenase,
mitochondrial
Acetylserotonin
O-
methyltransferase
Kynurenine
formamidase
Indoleamine
2,3-dioxygenase 1
Aromatic-L-
amino-acid
decarboxylase
Kynurenine
3-monooxygenase
Serotonin N-
acetyltransferase
Acetylserotonin
O-
methyltransferase
Cytochrome P450
1A1
Indoleamine
2,3-dioxygenase 1
Indolethylamine
N-
methyltransferase
Indoleamine
2,3-dioxygenase 1
Aromatic-L-
amino-acid
decarboxylase
Kynurenine
3-monooxygenase
Aldehyde
dehydrogenase,
mitochondrial
Indolethylamine
N-
methyltransferase
Aldehyde oxidase
Indoleamine
2,3-dioxygenase 1
Tryptophan--tRNA
ligase,
mitochondrial
Quinolinic acid
L-Tryptophan
L-Tryptophan
O2
N'-
Formylkynurenine
H2 O
Formylanthranilic
acid
L-Alanine
H2 O
L-Kynurenine
Formic acid
H2 O
2-Aminobenzoic
acid
Formic acid
H2 O
L-Alanine
4-(2-
Aminophenyl)-
2,4-
dioxobutanoic
acid
Kynurenic acid
Oxoglutaric acid
L-Glutamic acid
NADPH
O2
L-3-
Hydroxykynurenine
NADP
H2 O
H2 O
3-
Hydroxyanthranilic
acid
L-Alanine
O2
Cinnavalininate
H2 O
Oxoglutaric acid
4-(2-Amino-3-
hydroxyphenyl)-
2,4-
dioxobutanoic
acid
L-Glutamic acid
Xanthurenic acid
O2
2-Amino-3-
carboxymuconic
acid semialdehyde
2-Aminomuconic
acid semialdehyde
CO2
Tetrahydrobiopterin
O2
5-Hydroxy-L-
tryptophan
4a-
Hydroxytetrahydrobiopterin
Serotonin
CO2
NADPH
O2
5-
Hydroxyindoleacetaldehyde
NADP
H2 O
NAD
H2 O
5-
Hydroxyindoleacetic
acid
NADH
S-
Adenosylmethionine
5-
Methoxyindoleacetate
S-
Adenosylhomocysteine
5-Hydroxy-N-
formylkynurenine
H2 O
5-
Hydroxykynurenine
Formic acid
O2
5-
Hydroxykynurenamine
CO2
NADPH
O2
4,6-
Dihydroxyquinoline
NADP
H2 O
Acetyl-CoA
N-Acetylserotonin
CoA
S-
Adenosylmethionine
Melatonin
S-
Adenosylhomocysteine
O2
6-
Hydroxymelatonin
H2 O
O2
Acetyl-N-
formyl-5-
methoxykynurenamine
S-
Adenosylmethionine
N-Methylserotonin
S-
Adenosylhomocysteine
O2
Formyl-5-
hydroxykynurenamine
Tryptamine
CO2
NADPH
O2
Indoleacetaldehyde
NADP
H2 O
NAD
H2 O
Indoleacetic acid
NADH
S-
Adenosylmethionine
N-
Methyltryptamine
S-
Adenosylhomocysteine
H2 O
O2
H2 O2
O2
ATP
AMP
PPi
ATP
AMP
PPi
Heme
Pyrophosphate
Pyrophosphate
Pyridoxal
5'-phosphate
FAD
Pyrophosphate
Heme
NADP
Pyridoxal
5'-phosphate
Fe2+
Fe2+
Pyridoxal
5'-phosphate
FAD
Heme
Pyridoxal
5'-phosphate
FAD
Heme
Heme
Heme
Pyridoxal
5'-phosphate
FAD
FAD
Molybdopterin
2Fe-2S
Heme
Reduced
flavoprotein
Oxidized
flavoprotein
tRNA(Trp)
L-
Tryptophyl-
tRNA(Trp)
tRNA(Trp)
L-
Tryptophyl-
tRNA(Trp)
Nicotinate and
Nicotinamide
Metabolism
Extracellular space
Intracellular space
Mitochondria
Endoplasmic Reticulum
Peroxisome
WARS
TDO2
KYNU
AFMID
AFMID
KYNU
AADAT
KMO
KYNU
CAT
AADAT
HAAO
ACMSD
TPH1
DDC
KMO
ALDH2
ASMT
AFMID
IDO1
DDC
KMO
AANAT
ASMT
CYP1A1
IDO1
INMT
IDO1
DDC
KMO
ALDH2
INMT
AOX1
IDO1
WARS2
Quinolinic acid
L-Tryptophan
L-Tryptophan
Oxygen
N'-
Formylkynurenine
Water
Formylanthranilic
acid
L-Alanine
Water
L-Kynurenine
Formic acid
Water
2-Aminobenzoic
acid
Formic acid
Water
L-Alanine
4-(2-
Aminophenyl)-
2,4-
dioxobutanoic
acid
Kynurenic acid
Oxoglutaric acid
L-Glutamic acid
NADPH
Oxygen
L-3-
Hydroxykynurenine
NADP
Water
Water
3-
Hydroxyanthranilic
acid
L-Alanine
Oxygen
Cinnavalininate
Water
Oxoglutaric acid
4-(2-Amino-3-
hydroxyphenyl)-
2,4-
dioxobutanoic
acid
L-Glutamic acid
Xanthurenic acid
Oxygen
2-Amino-3-
carboxymuconic
acid semialdehyde
2-Aminomuconic
acid semialdehyde
Carbon dioxide
Tetrahydrobiopterin
Oxygen
5-Hydroxy-L-
tryptophan
4a-
Hydroxytetrahydrobiopterin
Serotonin
Carbon dioxide
NADPH
Oxygen
5-
Hydroxyindoleacetaldehyde
NADP
Water
NAD
Water
5-
Hydroxyindoleacetic
acid
NADH
S-
Adenosylmethionine
5-
Methoxyindoleacetate
S-
Adenosylhomocysteine
5-Hydroxy-N-
formylkynurenine
Water
5-
Hydroxykynurenine
Formic acid
Oxygen
5-
Hydroxykynurenamine
Carbon dioxide
NADPH
Oxygen
4,6-
Dihydroxyquinoline
NADP
Water
Acetyl-CoA
N-Acetylserotonin
Coenzyme A
S-
Adenosylmethionine
Melatonin
S-
Adenosylhomocysteine
Oxygen
6-
Hydroxymelatonin
Water
Oxygen
Acetyl-N-
formyl-5-
methoxykynurenamine
S-
Adenosylmethionine
N-Methylserotonin
S-
Adenosylhomocysteine
Oxygen
Formyl-5-
hydroxykynurenamine
Tryptamine
Carbon dioxide
NADPH
Oxygen
Indoleacetaldehyde
NADP
Water
NAD
Water
Indoleacetic acid
NADH
S-
Adenosylmethionine
N-
Methyltryptamine
S-
Adenosylhomocysteine
Water
Oxygen
Hydrogen peroxide
Oxygen
Adenosine
triphosphate
Adenosine
monophosphate
Pyrophosphate
Adenosine
triphosphate
Adenosine
monophosphate
Pyrophosphate
Reduced
flavoprotein
Oxidized
flavoprotein
tRNA(Trp)
L-
Tryptophyl-
tRNA(Trp)
tRNA(Trp)
L-
Tryptophyl-
tRNA(Trp)
Nicotinate and
Nicotinamide
Metabolism
WARS
TDO2
KYNU
AFMID
AFMID
KYNU
AADAT
KMO
KYNU
CAT
AADAT
HAAO
ACMSD
TPH1
DDC
KMO
ALDH2
ASMT
AFMID
IDO1
DDC
KMO
AANAT
ASMT
CYP1A1
IDO1
INMT
IDO1
DDC
KMO
ALDH2
INMT
AOX1
IDO1
WARS2
Quinoli
Trp
Trp
O2
Formylk
H2 O
Formyla
Ala
H2 O
L-Kynr
Formate
H2 O
2AA
Formate
H2 O
Ala
42A24D
Kynuren
AKG
Glu
NADPH
O2
L-3-HK
NADP
H2 O
H2 O
3-OHAa
Ala
O2
CinVal
H2 O
AKG
42A3H24
Glu
Xanthur
O2
2Am3CSa
2-AaSa
CO2
BH4
O2
5-HTP
4aHtHbp
5-HT
CO2
NADPH
O2
5-Hial
NADP
H2 O
NAD
H2 O
5HIDA
NADH
SAMe
Methoxy
SAH
5HNFKN
H2 O
5HKnn
Formate
O2
5-Hkynm
CO2
NADPH
O2
46Q
NADP
H2 O
Ac-CoA
NAsertn
CoA
SAMe
Meltn
SAH
O2
6HMeltn
H2 O
O2
AceNf5m
SAMe
NMetser
SAH
O2
F5H
Tryptam
CO2
NADPH
O2
Tryptal
NADP
H2 O
NAD
H2 O
Indolaa
NADH
SAMe
N-Metrp
SAH
H2 O
O2
H2 O2
O2
ATP
AMP
PPi
ATP
AMP
PPi
Heme
Ppi
Ppi
Pyr-5'P
FAD
Ppi
Heme
NADP
Pyr-5'P
Fe2+
Fe2+
Pyr-5'P
FAD
Heme
Pyr-5'P
FAD
Heme
Heme
Heme
Pyr-5'P
FAD
FAD
mlyBdpn
2Fe2S
Heme
RF
OF
TRNATRP
LTTT
TRNATRP
LTTT
PW000151
Extracellular space
Intracellular space
Mitochondria
Endoplasmic Reticulum
Peroxisome
WARS
TDO2
KYNU
AFMID
AFMID
KYNU
AADAT
KMO
KYNU
CAT
AADAT
HAAO
ACMSD
TPH1
DDC
KMO
ALDH2
ASMT
AFMID
IDO1
DDC
KMO
AANAT
ASMT
CYP1A1
IDO1
INMT
IDO1
DDC
KMO
ALDH2
INMT
AOX1
IDO1
WARS2
Quinoli
Trp
Trp
O2
Formylk
H2O
Formyla
Ala
H2O
L-Kynr
Formate
H2O
2AA
Formate
H2O
Ala
42A24D
Kynuren
AKG
Glu
NADPH
O2
L-3-HK
NADP
H2O
H2O
3-OHAa
Ala
O2
CinVal
H2O
AKG
42A3H24
Glu
Xanthur
O2
2Am3CSa
2-AaSa
CO2
BH4
O2
5-HTP
4aHtHbp
5-HT
CO2
NADPH
O2
5-Hial
NADP
H2O
NAD
H2O
5HIDA
NADH
SAMe
Methoxy
SAH
5HNFKN
H2O
5HKnn
Formate
O2
5-Hkynm
CO2
NADPH
O2
46Q
NADP
H2O
Ac-CoA
NAsertn
CoA
SAMe
Meltn
SAH
O2
6HMeltn
H2O
O2
AceNf5m
SAMe
NMetser
SAH
O2
F5H
Tryptam
CO2
NADPH
O2
Tryptal
NADP
H2O
NAD
H2O
Indolaa
NADH
SAMe
N-Metrp
SAH
H2O
O2
H2O2
O2
ATP
AMP
Ppi
ATP
AMP
Ppi
RF
OF
TRNATRP
LTTT
TRNATRP
LTTT
PW000151