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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
1500004A13Rik/3:88707192-88707193-88707306-88707307--/- 1500004A13Rik lncRNA -/- interior 3:88707192-88707306 114.0 Mouse
1500004A13Rik/3:88707192-88707194-88707295-88707297--/- 1500004A13Rik lncRNA -/- interior 3:88707192-88707295 103.0 Mouse
1500004A13Rik/3:88707192-88707198-88707309-88707315--/- 1500004A13Rik lncRNA -/- interior 3:88707192-88707309 117.0 Mouse
1500004A13Rik/3:88707195-88707198-88707310-88707313--/- 1500004A13Rik lncRNA -/- interior 3:88707195-88707310 115.0 Mouse
1500004A13Rik/3:88715400-88715401-88718680-88718681--/- 1500004A13Rik lncRNA -/- interior 3:88715401-88718681 3280.0 Mouse
1500004A13Rik/3:88723311-88723314-88727088-88727091--/- 1500004A13Rik lncRNA -/- interior 3:88723314-88727091 3777.0 Mouse
1500004A13Rik/3:88723321-88723324-88727098-88727101--/- 1500004A13Rik lncRNA -/- interior 3:88723321-88727098 3777.0 Mouse
1500004A13Rik/3:88723503-88723504-88727541-88727542--/- 1500004A13Rik lncRNA -/- interior 3:88723503-88727541 4038.0 Mouse
1500004A13Rik/3:88723512-88723520-88727550-88727558--/- 1500004A13Rik lncRNA -/- interior 3:88723512-88727550 4038.0 Mouse
1500004A13Rik/3:88723969-88723975-88728007-88728013--/- 1500004A13Rik lncRNA -/- interior 3:88723975-88728013 4038.0 Mouse