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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
ACACA/17:37283269-37283272-37289531-37289534--/- ACACA protein_coding -/- interior 17:37283269-37289531 6262.0 Human
ACACA/17:37324810-37324828-37325341-37325359--/- ACACA protein_coding -/- interior 17:37324810-37325341 531.0 Human
ACAP3/1:1294445-1294447-1294616-1294618--/- ACAP3 protein_coding -/- interior 1:1294447-1294618 171.0 Human
ACAP3/1:1294448-1294450-1294619-1294621--/- ACAP3 protein_coding -/- interior 1:1294450-1294621 171.0 Human
ACD/16:67658218-67658224-67658640-67658646--/- ACD protein_coding -/- partial 16:67658218-67658640 422.0 Human
ACER3/11:76886169-76886174-76885868-76885873-+/+ ACER3 protein_coding +/+ interior 11:76886169-76885868 301.0 Human
ACIN1/14:23058686-23058690-23058939-23058943--/- ACIN1 protein_coding -/- interior 14:23058690-23058943 253.0 Human
ACIN1/14:23058745-23058750-23058853-23058858--/- ACIN1 protein_coding -/- interior 14:23058745-23058853 108.0 Human
ACIN1/14:23080443-23080444-23080563-23080564--/- ACIN1 protein_coding -/- interior 14:23080443-23080563 120.0 Human
ACLY/17:41898678-41898681-41905599-41905602--/- ACLY protein_coding -/- interior 17:41898678-41905599 6921.0 Human