FB2026_03 , released September 17, 2026
CV Term Report
Help Close All Open All
General Information
Term L-ornithine transaminase activity ID (Ontology) GO:0004587 (Gene Ontology)
Definition Catalysis of the reaction: a 2-oxocarboxylate + L-ornithine = L-glutamate 5-semialdehyde + an L-alpha-amino acid.
Also Known As"ornithine aminotransferase activity" ; "ornithine-oxo-acid aminotransferase activity"
Comment
Links to External Ontologies
  QuickGO data     AmiGO data
Annotations
Records annotated with this term OR any of its CHILD TERMS

Choose a record type to view annotations for this term and its child terms. Direct annotations and full annotation statements below also provide HitList buttons.

  • Results list data from multiple species. Choose a record type above to open its HitList.
Direct annotations: records annotated with this exact term (child terms are NOT included)
Data ClassFieldDirect annotations
Genes (FBgn)GO_MOLECULAR_FUNCTION
show Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
 Full annotation statements 
Relevant FlyBase reports
 Genes
 L-ornithine transaminase activity (all annotations which use CV term, excluding "NOT" statements)
     enables | L-ornithine transaminase activity
Spanning Tree (Parents/Children)
Only view relationship:
Vocabulary search
  transferase activity, transferring nitrogenous groups
   |__transaminase activity
       |__L-ornithine transaminase activity  1 rec.
Spanning Tree View Settings
Parents/Children
View Depth
Show hierarchy levels: for parents, for children
hide Relationships
Is a transaminase activity
Part of
hide Synonyms & Secondary IDs
Synonyms
  • "GabT" RELATED[ EC:2 ]
    "L-ornithine 5-aminotransferase activity" RELATED[ EC:2 ]
    "L-ornithine aminotransferase activity" RELATED[ EC:2 ]
    "L-ornithine:2-oxo-acid aminotransferase activity" RELATED[ EC:2 ]
    "L-ornithine:alpha-ketoglutarate delta-aminotransferase activity" RELATED[ EC:2 ]
    "OAT" RELATED[ EC:2 ]
    "ornithine 5-aminotransferase activity" RELATED[ EC:2 ]
    "ornithine aminotransferase activity" EXACT
    "ornithine delta-transaminase activity" RELATED[ EC:2 ]
    "ornithine ketoacid aminotransferase activity" RELATED[ EC:2 ]
    "ornithine transaminase activity" RELATED[ EC:2 ]
    "ornithine(lysine) transaminase activity" RELATED
    "ornithine--2-oxoacid aminotransferase activity" RELATED[ EC:2 ]
    "ornithine--alpha-ketoglutarate aminotransferase activity" RELATED[ EC:2 ]
    "ornithine--keto acid aminotransferase activity" RELATED[ EC:2 ]
    "ornithine--keto acid transaminase activity" RELATED[ EC:2 ]
    "ornithine--ketoglutarate aminotransferase activity" RELATED[ EC:2 ]
    "ornithine--oxo acid aminotransferase activity" RELATED[ EC:2 ]
    "ornithine--oxo-acid transaminase activity" RELATED[ EC:2 ]
    "ornithine-oxo-acid aminotransferase activity" EXACT
    "ornithine-oxo-acid transaminase activity" RELATED
    "ornithine:alpha-oxoglutarate transaminase activity" RELATED[ EC:2 ]
Secondary IDs
hide External Crossreferences & Linkouts
EC:2.6.1.13
MetaCyc:ORNITHINE--OXO-ACID-AMINOTRANSFERASE-RXN
Reactome:R-HSA-70654 "ornithine + alpha-ketoglutarate <=> glutamate + L-glutamate gamma-semialdehyde [OAT]"
Reactome:R-HSA-70666 "glutamate + L-glutamate gamma-semialdehyde <=> ornithine + alpha-ketoglutarate [OAT]"
RHEA:13877
RHEA:25160