FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term polyA_site ID (Ontology) SO:0000553 (Sequence Ontology)
Definition The site on an RNA transcript to which will be added adenine residues by post-transcriptional polyadenylation. The boundary between the UTR and the polyA sequence.
Also Known As "INSDC_feature:polyA_site" ; "polyA cleavage site" ; "polyA junction" (for all, see Synonyms field below)
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SO.org
Annotations
Records annotated with this term OR any of its CHILD TERMS
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Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Sequence Features (FBsf)  FEATURE_TYPE   106613
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 Full annotation statements 
Relevant FlyBase reports
 Sequence Features Transcripts
 polyA_site (all annotations which use CV term, excluding "NOT" statements)   106613    100
Spanning Tree (Parents/Children)
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sequence_feature
 |__junction___________
UTR                    |
 |__three_prime_UTR____|
transcript             |
 |__mature_transcript__|
                       polyA_site  106713 rec.
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Is a junction
Part of three_prime_UTR
mature_transcript
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Synonyms
  • "INSDC_feature:polyA_site" EXACT
    "polyA cleavage site" EXACT
    "polyA junction" EXACT
    "polyA site" EXACT
    "polyA_junction" EXACT
    "polyadenylation site" RELATED
Secondary IDs
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