FB2026_03 , released September 17, 2026
CV Term Report
Help Close All Open All
General Information
Term galactokinase activity ID (Ontology) GO:0004335 (Gene Ontology)
Definition Catalysis of the reaction: D-galactose + ATP = alpha-D-galactose 1-phosphate + ADP + 2 H+.[ EC:2 ]
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
 galactokinase activity (all annotations which use CV term, excluding "NOT" statements)
     enables | galactokinase activity
Spanning Tree (Parents/Children)
Only view relationship:
Vocabulary search 
kinase activity
 |__carbohydrate kinase activity_________________________________
transferase activity, transferring phosphorus-containing groups  |
 |__phosphotransferase activity, alcohol group as acceptor_______|
                                                                 galactokinase activity  1 rec.
Spanning Tree View Settings
Parents/Children
View Depth
Show hierarchy levels: for parents, for children
hide Relationships
Is a phosphotransferase activity, alcohol group as acceptor
carbohydrate kinase activity
Part of
hide Synonyms & Secondary IDs
Synonyms
  • "ATP:D-galactose 1-phosphotransferase activity" RELATED[ EC:2 ]
    "ATP:D-galactose-1-phosphotransferase activity" RELATED[ EC:2 ]
    "galactokinase (phosphorylating)" RELATED[ EC:2 ]
Secondary IDs
hide External Crossreferences & Linkouts
EC:2.7.1.6
KEGG_REACTION:R01092
MetaCyc:GALACTOKIN-RXN
Reactome:R-HSA-5610026 "Defective GALK1 does not phosphorylate Gal"
Reactome:R-HSA-70355 "GALK1 phosphorylates Gal to Gal1P"
RHEA:13553