Toggle navigation
About
What is Reactome ?
News
Team
Scientific Advisory Board
Funding
Editorial Calendar
Release Calendar
Statistics
Our Logo
License Agreement
Privacy Notice
Disclaimer
Digital Preservation
Contact us
Content
Table of Contents
DOIs
Data Schema
Reactome Research Spotlight
ORCID Integration Project
COVID-19 Disease Pathways
Docs
Userguide
Pathway Browser
How do I search ?
Details Panel
Analysis Tools
Analysis Data
Analysis Gene Expression
Species Comparison
Tissue Distribution
Diseases
Cytomics
Review Status of Reactome Events
ReactomeFIViz
Developer's Zone
Graph Database
Analysis Service
Content Service
Pathways Overview
Pathway Diagrams
Icon Info
EHLD Specs & Guidelines
Icon Library Guidelines
Data Model
Curator Guide
Release Documentation
Computationally inferred events
FAQ
Linking to Us
Citing us
Tools
Pathway Browser
Analyse gene list
Analyse gene expression
Species Comparison
Tissue Distribution
Analysis Service
Content Service
ReactomeFIViz
Advanced Data Search
Site Search
Community
Contribute Pathway Knowledge
Icon Library
Outreach
Events
Publications
Partners
Contributors
Resources Guide
Download
About
What is Reactome ?
News
Team
Scientific Advisory Board
Funding
Editorial Calendar
Release Calendar
Statistics
Our Logo
License Agreement
Privacy Notice
Disclaimer
Digital Preservation
Contact us
Content
Table of Contents
DOIs
Data Schema
Reactome Research Spotlight
ORCID Integration Project
COVID-19 Disease Pathways
Docs
Userguide
Pathway Browser
How do I search ?
Details Panel
Analysis Tools
Analysis Data
Analysis Gene Expression
Species Comparison
Tissue Distribution
Diseases
Cytomics
Review Status of Reactome Events
ReactomeFIViz
Developer's Zone
Graph Database
Analysis Service
Content Service
Pathways Overview
Pathway Diagrams
Icon Info
EHLD Specs & Guidelines
Icon Library Guidelines
Data Model
Curator Guide
Release Documentation
Computationally inferred events
FAQ
Linking to Us
Citing us
Tools
Pathway Browser
Analyse gene list
Analyse gene expression
Species Comparison
Tissue Distribution
Analysis Service
Content Service
ReactomeFIViz
Advanced Data Search
Site Search
Community
Contribute Pathway Knowledge
Icon Library
Outreach
Events
Publications
Partners
Contributors
Resources Guide
Download
Search ...
Go!
Schema
>
Reaction
>
Entries
kynurenine + O2 + NADPH + H+ => 3-hydroxykynurenine + NADP+ + H2O
Show undefined attributes
Go to Details
authored
[InstanceEdit:164915] D'Eustachio, P, 2005-07-20 13:46:37
catalystActivity
[CatalystActivity:71199] kynurenine 3-monooxygenase activity of KMO [mitochondrial outer membrane]
category
transition
compartment
[Compartment:70101] cytosol
crossReference
[DatabaseIdentifier:12667987] RHEA:20546
[DatabaseIdentifier:9929645] RHEA:20546
dbId
71200
displayName
kynurenine + O2 + NADPH + H+ => 3-hydroxykynurenine + NADP+ + H2O
edited
[InstanceEdit:164915] D'Eustachio, P, 2005-07-20 13:46:37
eventOf
[Pathway:R-HSA-71240] Tryptophan catabolism - Homo sapiens
followingEvent
[Reaction:R-HSA-9972889] AADAT transaminates 3HKYN to xanthurenate - Homo sapiens
[Reaction:R-HSA-71217] 3-hydroxykynurenine + H2O => 3-hydroxyanthranilate + alanine + H+ - Homo sapiens
input
[SimpleEntity:R-ALL-70106] H+ [cytosol]
[SimpleEntity:R-ALL-29970] L-KYN [cytosol]
[SimpleEntity:R-ALL-29364] NADPH [cytosol]
[SimpleEntity:R-ALL-29368] O2 [cytosol]
isInDisease
false
isInferred
false
literatureReference
[LiteratureReference:198585] Functional characterization and mechanism of action of recombinant human kynurenine 3-hydroxylase
[LiteratureReference:9978937] On the submitochondrial localization of l-kynurenine-3-hydroxylase
maxDepth
1
modified
[InstanceEdit:11080360] Weiser, Joel, 2026-03-16
name
kynurenine + O2 + NADPH + H+ => 3-hydroxykynurenine + NADP+ + H2O
H(+) + L-kynurenine + NADPH + O2 => 3-hydroxy-L-kynurenine + H2O + NADP(+)
orthologousEvent
[Reaction:R-RNO-71200] kynurenine + O2 + NADPH + H+ => 3-hydroxykynurenine + NADP+ + H2O - Rattus norvegicus
[Reaction:R-SCE-71200] kynurenine + O2 + NADPH + H+ => 3-hydroxykynurenine + NADP+ + H2O - Saccharomyces cerevisiae
[Reaction:R-DDI-71200] kynurenine + O2 + NADPH + H+ => 3-hydroxykynurenine + NADP+ + H2O - Dictyostelium discoideum
[Reaction:R-CEL-71200] kynurenine + O2 + NADPH + H+ => 3-hydroxykynurenine + NADP+ + H2O - Caenorhabditis elegans
[Reaction:R-DME-71200] kynurenine + O2 + NADPH + H+ => 3-hydroxykynurenine + NADP+ + H2O - Drosophila melanogaster
[Reaction:R-GGA-71200] kynurenine + O2 + NADPH + H+ => 3-hydroxykynurenine + NADP+ + H2O - Gallus gallus
[Reaction:R-XTR-71200] kynurenine + O2 + NADPH + H+ => 3-hydroxykynurenine + NADP+ + H2O - Xenopus tropicalis
[Reaction:R-DRE-71200] kynurenine + O2 + NADPH + H+ => 3-hydroxykynurenine + NADP+ + H2O - Danio rerio
[Reaction:R-SSC-71200] kynurenine + O2 + NADPH + H+ => 3-hydroxykynurenine + NADP+ + H2O - Sus scrofa
[Reaction:R-BTA-71200] kynurenine + O2 + NADPH + H+ => 3-hydroxykynurenine + NADP+ + H2O - Bos taurus
[Reaction:R-CFA-71200] kynurenine + O2 + NADPH + H+ => 3-hydroxykynurenine + NADP+ + H2O - Canis familiaris
[Reaction:R-MMU-71200] kynurenine + O2 + NADPH + H+ => 3-hydroxykynurenine + NADP+ + H2O - Mus musculus
output
[SimpleEntity:R-ALL-34351] 3HKYN [cytosol]
[SimpleEntity:R-ALL-29356] H2O [cytosol]
[SimpleEntity:R-ALL-29366] NADP+ [cytosol]
precedingEvent
[Reaction:R-HSA-71189] AFMID hydrolyses NFK to L-KYN - Homo sapiens
releaseDate
2004-07-06
reviewStatus
[ReviewStatus:9821382] five stars
schemaClass
Reaction
species
[Species:48887] Homo sapiens
stId
R-HSA-71200
summation
[Summation:178923] Cytosolic kynurenine 3-monooxygenase (KMO) catalyzes the rea...
updateTrackers
[UpdateTracker:9792301] Update Tracker - [Reaction:71200] kynurenine + O2 + NADPH + H+ => 3-hydroxykynurenine + NADP+ + H2O - v22:[addLiteratureReference, modifyText]
[UpdateTracker:9984682] Update Tracker - [Reaction:71200] kynurenine + O2 + NADPH + H+ => 3-hydroxykynurenine + NADP+ + H2O - v96:[modifyText, removeLiteratureReference]
Referrals
(updatedInstance)
[UpdateTracker:9792301] Update Tracker - [Reaction:71200] kynurenine + O2 + NADPH + H+ => 3-hydroxykynurenine + NADP+ + H2O - v22:[addLiteratureReference, modifyText]
[UpdateTracker:9984682] Update Tracker - [Reaction:71200] kynurenine + O2 + NADPH + H+ => 3-hydroxykynurenine + NADP+ + H2O - v96:[modifyText, removeLiteratureReference]
(hasEvent)
[Pathway:R-HSA-71240] Tryptophan catabolism
(precedingEvent)
[Reaction:R-HSA-9972889] AADAT transaminates 3HKYN to xanthurenate
[Reaction:R-HSA-71217] 3-hydroxykynurenine + H2O => 3-hydroxyanthranilate + alanine + H+
© 2026
Reactome
This website requires cookies and the limited processing of your personal data in order to function. By using the site you are agreeing to this as outlined in our
Privacy Notice
.
I agree, dismiss this banner
Cite Us!
Cite Us!
Cite Us!
Warning!
Unable to extract citation. Please try again later.
Download As:
BibTeX
RIS
Text