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The Sequence Types and Features Ontology (SO) is downloaded weekly from the SourceForge CVS repository at For more information about this ontology, see the Sequence Ontology Home Page at

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Accession:SO:0000178 term browser browse the term
Definition:The DNA region of a group of adjacent genes whose transcription is coordinated on one or several mutually overlapping transcription units transcribed in the same direction and sharing at least one gene.
Comment:This term is mapped to MGED. Do not obsolete without consulting MGED ontology. Definition updated with per Mejia-Almonte Redefining fundamental concepts of transcription initiation in prokaryotes Aug 5 2020.
Synonyms:exact_synonym: INSDC_feature:operon
 xref: "wiki"

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  SO ontology 0
    sequence_feature 0
      region 0
        biological_region 0
          gene_group 0
            operon 0
              complex_operon 0
              simple_operon 0
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