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!
CYB5A [mitochondrial outer membrane]
Stable Identifier
R-HSA-198781
Type
Protein [EntityWithAccessionedSequence]
Species
Homo sapiens
Compartment
mitochondrial outer membrane
Synonyms
CYB5A (membrane-bound), Cytochrome b5
Locations in the PathwayBrowser
Expand all
Metabolism (Homo sapiens)
Metabolism of vitamins and cofactors (Homo sapiens)
Metabolism of water-soluble vitamins and cofactors (Homo sapiens)
Vitamin C (ascorbate) metabolism (Homo sapiens)
CYB5A:heme reduces Asc.- to AscH- (Homo sapiens)
CYB5A:ferriheme [mitochondrial outer membrane] (Homo sapiens)
CYB5A [mitochondrial outer membrane] (Homo sapiens)
CYB5A:heme [mitochondrial outer membrane] (Homo sapiens)
CYB5A [mitochondrial outer membrane] (Homo sapiens)
CYB5R3:FAD reduces CYB5A:ferriheme to CYB5A:heme (Homo sapiens)
CYB5A:ferriheme [mitochondrial outer membrane] (Homo sapiens)
CYB5A [mitochondrial outer membrane] (Homo sapiens)
CYB5A:heme [mitochondrial outer membrane] (Homo sapiens)
CYB5A [mitochondrial outer membrane] (Homo sapiens)
External Reference Information
External Reference
UniProt:P00167 CYB5A
Gene Names
CYB5A, CYB5
Chain
initiator methionine:, chain:2-134
Reference Genes
BioGPS Gene:1528 CYB5A
COSMIC (genes):CYB5A CYB5A
CTD Gene:1528 CYB5A
dbSNP Gene:1528 CYB5A
ENSEMBL:ENSG00000166347 CYB5A
HGNC:2570 CYB5A
KEGG:hsa:1528 CYB5A
Monarch:1528 CYB5A
NCBI Gene:1528 CYB5A
OMIM:613218 CYB5A
UCSC:P00167 CYB5A
Reference Transcript
RefSeq:NM_001914.3 CYB5A
RefSeq:NM_001190807.2 CYB5A
RefSeq:XM_011525835.2 CYB5A
RefSeq:NM_148923.3 CYB5A
Participates
as a component of
CYB5A:heme [mitochondrial outer membrane] (Homo sapiens)
CYB5A:ferriheme [mitochondrial outer membrane] (Homo sapiens)
Inferred To
cyb5B [mitochondrial outer membrane]
(Dictyostelium discoideum)
cyb5A [mitochondrial outer membrane]
(Canis familiaris)
cyb5b [mitochondrial outer membrane]
(Danio rerio)
CYB5A [mitochondrial outer membrane]
(Bos taurus)
CYB5A [mitochondrial outer membrane]
(Drosophila melanogaster)
CYB5A [mitochondrial outer membrane]
(Gallus gallus)
CYB5A [mitochondrial outer membrane]
(Mus musculus)
CYB5A [mitochondrial outer membrane]
(Rattus norvegicus)
CYB5A [mitochondrial outer membrane]
(Saccharomyces cerevisiae)
CYB5A [mitochondrial outer membrane]
(Schizosaccharomyces pombe)
CYB5A [mitochondrial outer membrane]
(Sus scrofa)
cyb5a [mitochondrial outer membrane]
(Xenopus tropicalis)
cytb-5.1 [mitochondrial outer membrane]
(Caenorhabditis elegans)
Cross References
ENSEMBL
ENST00000340533
,
ENSP00000341625
,
ENST00000494131
,
ENSP00000381011
,
ENSP00000436461
,
ENSG00000166347
,
ENST00000397914
OpenTargets
ENSG00000166347
GeneCards
CYB5A
HPA
ENSG00000166347-CYB5A
PRO
P00167
Pharos - Targets
P00167
GlyGen
P00167
Orphanet
CYB5A
HMDB Protein
HMDBP02808
PDB
2I96
Interactors (1)
Accession
#Entities
Entities
Confidence Score
Evidence (IntAct)
UniProt:O76024 WFS1
3
WFS1 [endoplasmic reticulum lumen]
(R-HSA-8956747)
p-WFS1 [endoplasmic reticulum lumen]
(R-HSA-8956998)
WFS1 [endoplasmic reticulum membrane]
(R-HSA-535474)
0.556
3
© 2025
Reactome
Cite Us!
Cite Us!
Cite Us!
Warning!
Unable to extract citation. Please try again later.
Download As:
BibTeX
RIS
Text