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Tissue: HT-29
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circRNA ID Gene Gene Type Strand (circRNA/Gene)
circRNA Type i

The back-fusion junctions (BFJs) of circRNAs from genic regions may have three possible positions relative to the nearest exon-intron boundaries of their cognate linear transcripts, giving rise to three circRNA subtypes:

(1) canonical (or completely boundary) circRNAs with both BFJs aligning to exon-intron boundaries;

(2) half interior (or half boundary) circRNAs with one, but not both, of the BFJs aligning to exon-intron boundaries;

(3) complete interior (or non-boundary) circRNAs with both junctions appearing inside of exons or introns.

Lariats are byproducts of splicing and can be regarded as variants of canonical circRNAs; for clarity, we list lariats separately here.

Intergenic circRNAs, derived from intergenic regions that often encode poorly annotated noncoding transcripts, can be considered a new distinct subtype of their own.

We collectively refer to complete interior, half interior, and intergenic circRNAs as noncanonical circRNAs (nc-circRNAs) to distinguish them from canonical circRNAs (c-circRNAs).

CircRNA Types Diagram
Position Length Species
ABR/17:1062189-1062193-1063125-1063129--/- ABR protein_coding -/- interior 17:1062193-1063129 936.0 Human
ABR/17:1062370-1062375-1063222-1063227--/- ABR protein_coding -/- interior 17:1062370-1063222 852.0 Human
ABR/17:1062411-1062412-1063990-1063991--/- ABR protein_coding -/- interior 17:1062411-1063990 1579.0 Human
ABR/17:1062486-1062489-1064232-1064235--/- ABR protein_coding -/- interior 17:1062489-1064235 1746.0 Human
ABR/17:1062704-1062705-1064026-1064027--/- ABR protein_coding -/- interior 17:1062705-1064027 1322.0 Human
ABR/17:1062864-1062880-1063336-1063352--/- ABR protein_coding -/- interior 17:1062880-1063352 472.0 Human
ABR/17:1062869-1062881-1065606-1065618--/- ABR protein_coding -/- interior 17:1062869-1065606 2737.0 Human
ABR/17:1062922-1062931-1064759-1064768--/- ABR protein_coding -/- interior 17:1062922-1064759 1837.0 Human
ABR/17:1062996-1062999-1065349-1065352--/- ABR protein_coding -/- interior 17:1062999-1065352 2353.0 Human
ABR/17:1063254-1063254-1064704-1064704--/- ABR protein_coding -/- interior 17:1063254-1064704 1450.0 Human