FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
CV Term Report
Help Close All Open All
General Information
Term cytidine deaminase activity ID (Ontology) GO:0004126 (Gene Ontology)
Definition Catalysis of the reaction: cytidine + H+ + H2O = uridine + NH4 and deoxycytidine + H+ + H2O = deoxyuridine + NH4+.[ EC:3 ]
Also Known As "(deoxy)cytidine deaminase activity"
Comment
Links to External Ontologies
  QuickGO data     AmiGO data
Annotations
Records annotated with this term OR any of its CHILD TERMS
    Results list data from multiple species. Click on a button above and use the 'Filter by species' options on the resulting HitList to retrieve species-specific data.
Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Genes (FBgn)  GO_MOLECULAR_FUNCTION       3
show Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
 Full annotation statements 
Relevant FlyBase reports
 Gene Groups Genes
 cytidine deaminase activity (all annotations which use CV term, excluding "NOT" statements)       1      3
     enables | cytidine deaminase activity       --       3
Spanning Tree (Parents/Children)
Only view relationship: 
hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds
 |__hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in cyclic amidines__
 |__deaminase activity_________________________________________________________________________|
                                                                                         cytidine deaminase activity  4 rec.
Spanning Tree View Settings
Parents/Children
View Depth
Show hierarchy levels: for parents, for children
hide Relationships
Is a hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in cyclic amidines
deaminase activity
Part of
hide Synonyms & Secondary IDs
Synonyms
  • "(deoxy)cytidine deaminase activity" EXACT[ EC:3 ]
    "cytidine aminohydrolase activity" RELATED[ EC:3 ]
    "cytosine nucleoside deaminase activity" RELATED[ EC:3 ]
    "deoxycytidine deaminase activity" RELATED
Secondary IDs
hide External Crossreferences & Linkouts
EC:3.5.4.5
MetaCyc:CYTIDEAM-RXN
MetaCyc:CYTIDEAM2-RXN
Reactome:R-HSA-73608 "(deoxy)cytidine + H2O => (deoxy)uridine + NH4+ (CDA)"
Reactome:R-HSA-83677 "C4 deamination of cytidine"
Reactome:R-HSA-9817513 "AICDA deaminates cytidine in chromatin containing histone H3.3 and 5-methylcytidine"
RHEA:13433
RHEA:16069