FB2026_03 , released September 17, 2026

CV Term Report

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General Information

Term

endonucleolytic cleavage in 5'-ETS of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA)

ID (Ontology)

GO:0000480 (Gene Ontology)

Definition

Endonucleolytic cleavage within the 5'-External Transcribed Spacer (ETS) of a tricistronic rRNA transcript that contains the Small Subunit (SSU) rRNA, the 5.8S rRNA, and the Large Subunit (LSU) rRNA in that order from 5' to 3' along the primary transcript. Endonucleolytic cleavage within the 5'-ETS of the pre-RNA is conserved as one of the early steps of rRNA processing in all eukaryotes, but the specific position of cleavage is variable.[ PubMed:10690410 PubMed:15282326 ]

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_BIOLOGICAL_PROCESS

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
endonucleolytic cleavage in 5'-ETS of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) (all annotations which use CV term, excluding "NOT" statements)
involved_in \| endonucleolytic cleavage in 5'-ETS of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA)

Spanning Tree (Parents/Children)

rRNA processing
 |__endonucleolytic cleavage of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA)__
maturation of SSU-rRNA                                                                        |
 |__maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA)__|
                                                                                         endonucleolytic cleavage in 5'-ETS of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA)  21 rec.

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	endonucleolytic cleavage of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA)
Part of	maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA)
Synonyms & Secondary IDs
Synonyms
	"endonucleolytic cleavage at A-prime" NARROW[ PubMed:15282326 ] "endonucleolytic cleavage at A0" NARROW
Secondary IDs

External Crossreferences & Linkouts