kynurenine pathway
E376854
The kynurenine pathway is the primary metabolic route for tryptophan degradation, producing several bioactive metabolites involved in immune regulation, neurobiology, and redox balance.
All labels observed (1)
| Label | Occurrences |
|---|---|
| kynurenine pathway canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3670760 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: kynurenine pathway Context triple: [tryptophan, participatesInPathway, kynurenine pathway]
-
A.
Ketoy
Ketoy is an uninhabited volcanic island in the central Kuril Islands chain in the northwest Pacific Ocean.
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B.
Metabolism
Metabolism was a postwar Japanese architectural movement that envisioned cities and buildings as dynamic, organic systems capable of continuous growth and change through modular, flexible design.
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C.
essential amino acid tryptophan
Essential amino acid tryptophan is a vital nutrient that humans must obtain from their diet and that serves as a biochemical precursor to important molecules such as serotonin, melatonin, and niacin.
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D.
endocannabinoid system
The endocannabinoid system is a widespread cell-signaling network in the body that helps regulate processes such as mood, appetite, pain, memory, and immune function through cannabinoid receptors, endogenous ligands, and metabolic enzymes.
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E.
substantia nigra
The substantia nigra is a midbrain structure rich in dopamine-producing neurons that plays a key role in movement control and is critically involved in Parkinson’s disease.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: kynurenine pathway Target entity description: The kynurenine pathway is the primary metabolic route for tryptophan degradation, producing several bioactive metabolites involved in immune regulation, neurobiology, and redox balance.
-
A.
Ketoy
Ketoy is an uninhabited volcanic island in the central Kuril Islands chain in the northwest Pacific Ocean.
-
B.
Metabolism
Metabolism was a postwar Japanese architectural movement that envisioned cities and buildings as dynamic, organic systems capable of continuous growth and change through modular, flexible design.
-
C.
essential amino acid tryptophan
Essential amino acid tryptophan is a vital nutrient that humans must obtain from their diet and that serves as a biochemical precursor to important molecules such as serotonin, melatonin, and niacin.
-
D.
endocannabinoid system
The endocannabinoid system is a widespread cell-signaling network in the body that helps regulate processes such as mood, appetite, pain, memory, and immune function through cannabinoid receptors, endogenous ligands, and metabolic enzymes.
-
E.
substantia nigra
The substantia nigra is a midbrain structure rich in dopamine-producing neurons that plays a key role in movement control and is critically involved in Parkinson’s disease.
- F. None of above. chosen
Statements (52)
| Predicate | Object |
|---|---|
| instanceOf |
metabolic pathway
ⓘ
tryptophan catabolic pathway ⓘ |
| activatedBy |
inflammatory cytokines
ⓘ
interferon-gamma ⓘ |
| competesWith | serotonin synthesis pathway ⓘ |
| dysregulationAssociatedWith |
Alzheimer's disease
ⓘ
Parkinson's disease ⓘ autoimmune diseases ⓘ cancer immune evasion ⓘ chronic inflammation ⓘ major depressive disorder ⓘ schizophrenia ⓘ |
| hasBranch |
neuroprotective branch
ⓘ
neurotoxic branch ⓘ |
| involvedIn |
NAD+ biosynthesis
ⓘ
immune regulation ⓘ neurotransmission modulation ⓘ redox balance ⓘ |
| involvesEnzyme |
3-hydroxyanthranilate 3,4-dioxygenase
ⓘ
formamidase ⓘ indoleamine 2,3-dioxygenase 1 ⓘ indoleamine 2,3-dioxygenase 2 ⓘ kynureninase ⓘ kynurenine aminotransferase I ⓘ kynurenine aminotransferase II ⓘ kynurenine aminotransferase III ⓘ kynurenine aminotransferase III ⓘ
surface form:
kynurenine aminotransferase IV
kynurenine monooxygenase ⓘ quinolinate phosphoribosyltransferase ⓘ tryptophan 2,3-dioxygenase ⓘ |
| neuroprotectiveMetabolite | kynurenic acid ⓘ |
| neurotoxicMetabolite |
3-hydroxykynurenine
ⓘ
quinolinic acid ⓘ |
| occursIn |
astrocytes
ⓘ
brain ⓘ immune cells ⓘ liver ⓘ microglia ⓘ |
| produces |
3-hydroxyanthranilic acid
ⓘ
3-hydroxykynurenine ⓘ NAD+ ⓘ anthranilic acid ⓘ kynurenic acid ⓘ kynurenine ⓘ nicotinamide adenine dinucleotide ⓘ picolinic acid ⓘ quinolinic acid ⓘ |
| rateLimitingEnzyme |
indoleamine 2,3-dioxygenase 1
ⓘ
tryptophan 2,3-dioxygenase ⓘ |
| regulates | tryptophan availability ⓘ |
| startsWithReaction | oxidation of tryptophan to N-formylkynurenine ⓘ |
| usesSubstrate | tryptophan ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: kynurenine pathway Description of subject: The kynurenine pathway is the primary metabolic route for tryptophan degradation, producing several bioactive metabolites involved in immune regulation, neurobiology, and redox balance.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
tryptophan