FB2026_02 , released June 18, 2026

CV Term Report

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General Information

Term

terminal_inverted_repeat_element

ID (Ontology)

SO:0000208 (Sequence Ontology)

Definition

A DNA transposable element defined as having termini with perfect, or nearly perfect short inverted repeats, generally 10 - 40 nucleotides long.

Also Known As

"terminal inverted repeat element" ; "TIR element"

Comment

Links to External Ontologies

SO.org

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
Nat. Transposons (FBte)	TRANSPOSON_TYPE

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	Transposons
terminal_inverted_repeat_element (all annotations which use CV term, excluding "NOT" statements)

Spanning Tree (Parents/Children)

  transposable_element
   |__DNA_transposon
       |__terminal_inverted_repeat_element  197 rec.
           |__CACTA_TIR_transposon
           |__hAT_TIR_transposon
           |__insertion_sequence
           |__Merlin_TIR_transposon
           |__MITE 44 rec.
           |__Mutator_TIR_transposon
           |__P_TIR_transposon
           |__PIF_Harbinger_TIR_transposon
           |__piggyBac_TIR_transposon
           |__polinton
           |__Tc1_Mariner_TIR_transposon
           |__terminal_inverted_repeat
           |   |__five_prime_terminal_inverted_repeat
           |   |__three_prime_terminal_inverted_repeat
           |__Transib_TIR_transposon

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	DNA_transposon
Part of
Synonyms & Secondary IDs
Synonyms
	"terminal inverted repeat element" EXACT "TIR element" EXACT
Secondary IDs

External Crossreferences & Linkouts