FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term primary piRNA processing ID (Ontology) GO:0140990 (Gene Ontology)
Definition The process involved in converting precursor piRNAs into non-overlapping, contiguous primary piRNAs (approximately 24-30-nt piRNAs with a preference for a 5' uridine (U) via the endonucleolytic activity of cytosolic PIWI. This may include pre-piRNA maturation of 3' ends by trimming and 2'-O-methylation.[ PubMed:22907665 PubMed:26166577 PubMed:34469728 ]
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Genes (FBgn)GO_BIOLOGICAL_PROCESS
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 primary piRNA processing (all annotations which use CV term, excluding "NOT" statements)
     involved_in | primary piRNA processing
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  regulatory ncRNA processing
   |__piRNA processing
       |__primary piRNA processing  14 rec.
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