FB2026_03 , released September 17, 2026

CV Term Report

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General Information

Term

tRNA guanylyltransferase activity

ID (Ontology)

GO:0008193 (Gene Ontology)

Definition

Catalysis of the posttranscriptional addition of a guanyl residue to the 5' end of a tRNA molecule; observed for His tRNAs.[ PubMed:1660461 ]

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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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 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	Genes
tRNA guanylyltransferase activity (all annotations which use CV term, excluding "NOT" statements)
enables \| tRNA guanylyltransferase activity

Spanning Tree (Parents/Children)

guanylyltransferase activity
 |__RNA guanylyltransferase activity______
catalytic activity, acting on RNA         |
 |__RNA guanylyltransferase activity______|
 |__catalytic activity, acting on a tRNA__|
                                          tRNA guanylyltransferase activity  1 rec.

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	RNA guanylyltransferase activity catalytic activity, acting on a tRNA
Part of
Synonyms & Secondary IDs
Synonyms

Secondary IDs

External Crossreferences & Linkouts
	EC:2.7.7.79 RHEA:54564