FB2026_03 , released September 17, 2026

CV Term Report

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General Information

Term

polynucleotide 5'-hydroxyl-kinase activity

ID (Ontology)

GO:0051731 (Gene Ontology)

Definition

Catalysis of the reaction: NTP + 5'-dephosphopolynucleotide = NDP + 5'-phosphopolynucleotide. The polynucleotide may be DNA or RNA.

Also Known As

"5'-dephosphopolynucleotide kinase activity" ; "5'-hydroxyl polynucleotide kinase activity" ; "polynucleotide 5'-hydroxy-kinase activity" (for all, see Synonyms field below)

Comment

Links to External Ontologies

QuickGO data AmiGO data

Annotations

Records annotated with this term OR any of its CHILD TERMS

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Direct annotations: records annotated with this exact term (child terms are NOT included)

Data Class	Field	Direct annotations
Genes (FBgn)	GO_MOLECULAR_FUNCTION

Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records

Full annotation statements	Relevant FlyBase reports
Full annotation statements	Gene Groups	Genes
polynucleotide 5'-hydroxyl-kinase activity (all annotations which use CV term, excluding "NOT" statements)
enables \| polynucleotide 5'-hydroxyl-kinase activity	--

Spanning Tree (Parents/Children)

kinase activity
 |__nucleobase-containing compound kinase activity_______________
transferase activity, transferring phosphorus-containing groups  |
 |__phosphotransferase activity, alcohol group as acceptor_______|
                                                                 polynucleotide 5'-hydroxyl-kinase activity  4 rec.
                                                                  |__ATP-dependent polynucleotide 5'-hydroxyl-kinase activity 3 rec.
                                                                  |   |__ATP-dependent polydeoxyribonucleotide 5'-hydroxyl-kinase activity 3 rec.
                                                                  |   |__ATP-dependent polyribonucleotide 5'-hydroxyl-kinase activity 1 rec.
                                                                  |__GTP-dependent polynucleotide 5'-hydroxyl-kinase activity
                                                                      |__GTP-dependent polydeoxyribonucleotide 5'-hydroxyl-kinase activity
                                                                      |__GTP-dependent polyribonucleotide 5'-hydroxyl-kinase activity

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	phosphotransferase activity, alcohol group as acceptor nucleobase-containing compound kinase activity
Part of
Synonyms & Secondary IDs
Synonyms
	"5'-dephosphopolynucleotide kinase activity" EXACT "5'-hydroxyl polynucleotide kinase activity" EXACT "PNK" RELATED "polynucleotide 5'-hydroxy-kinase activity" EXACT "polynucleotide 5'-hydroxyl kinase (phosphorylating) activity" EXACT "polynucleotide kinase activity" BROAD
Secondary IDs

External Crossreferences & Linkouts