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Species: Mouse
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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
1110002J07Rik/10:66752065-66752066-66752179-66752180--/- 1110002J07Rik lncRNA -/- interior 10:66752065-66752179 114.0 Mouse
1110002L01Rik/12:3455733-3455737-3455853-3455857--/- 1110002L01Rik lncRNA -/- interior 12:3455733-3455853 120.0 Mouse
1110002L01Rik/12:3455820-3455821-3456538-3456539--/- 1110002L01Rik lncRNA -/- interior 12:3455820-3456538 718.0 Mouse
1110002L01Rik/12:3476919-3476919-3477060-3477060--/- 1110002L01Rik lncRNA -/- interior 12:3476919-3477060 141.0 Mouse
1110004F10Rik/7:115682894-115682895-115682780-115682781-+/+ 1110004F10Rik protein_coding +/+ interior 7:115682894-115682780 114.0 Mouse
1110004F10Rik/7:115692701-115692702-115692599-115692600-+/+ 1110004F10Rik protein_coding +/+ partial 7:115692701-115692599 102.0 Mouse
1110004F10Rik/7:115702557-115702557-115702454-115702454-+/+ 1110004F10Rik protein_coding +/+ interior 7:115702557-115702454 103.0 Mouse
1110004F10Rik/7:115703522-115703529-115703664-115703671--/+ 1110004F10Rik protein_coding -/+ antisense 7:115703522-115703664 142.0 Mouse
1110004F10Rik/7:115703563-115703564-115703446-115703447-+/+ 1110004F10Rik protein_coding +/+ partial 7:115703563-115703446 117.0 Mouse
1110004F10Rik/7:115703618-115703619-115703796-115703797--/+ 1110004F10Rik protein_coding -/+ antisense 7:115703618-115703796 178.0 Mouse