Where the Minor Things Are — Minor Intron Database
Curated U12-type (minor) intron annotations across
2,634 eukaryotic genomes — 347M annotated introns in 51.8M
transcripts, each intron typed major (U2-type) or minor (U12-type) with scores, splice-site logos, per-genome verdicts,
and downloadable coordinates.
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GenomesN = 2,634One row per species: verdict, counts, snRNA status, and assembly quality.
Minor intronsN = 1,005,866High-confidence U12-type introns, with coordinates and scores.
IntronsN = 346,921,077All introns, typed major (U2-type) or minor (U12-type).
TranscriptsN = 51,752,125Transcript models linking introns to genes and genomes.