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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
ACP1/2:277532-277532-277336-277336-+/+ ACP1 protein_coding +/+ interior 2:277532-277336 196.0 Human
ACP1/2:277533-277538-277337-277342-+/+ ACP1 protein_coding +/+ interior 2:277533-277337 196.0 Human
ACP6/1:147648247-147648252-147659777-147659782--/- ACP6 protein_coding -/- partial 1:147648247-147659777 11530.0 Human
ACP6/1:147670042-147670042-147670171-147670171--/- ACP6 protein_coding -/- interior 1:147670042-147670171 129.0 Human
ACSF3/16:89114485-89114489-89112089-89112093-+/+ ACSF3 protein_coding +/+ canonical (exon-exon) 16:89114485-89112089 2396.0 Human
ACSL1/4:184770511-184770511-184773080-184773080--/- ACSL1 protein_coding -/- lariat 4:184770511-184773080 2569.0 Human
ACSL3/2:222934682-222934687-222900668-222900673-+/+ ACSL3 protein_coding +/+ canonical (exon-exon) 2:222934682-222900668 34014.0 Human
ACSL3/2:222941974-222941976-222924503-222924505-+/+ ACSL3 protein_coding +/+ interior 2:222941974-222924503 17471.0 Human
ACSL5/10:112427504-112427508-112427344-112427348-+/+ ACSL5 protein_coding +/+ interior 10:112427504-112427344 160.0 Human
ACSS1/20:25020011-25020013-25023643-25023645--/- ACSS1 protein_coding -/- partial 20:25020011-25023643 3632.0 Human