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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/17:1063729-1063737-1064968-1064976--/- ABR protein_coding -/- interior 17:1063729-1064968 1239.0 Human
ABR/17:1063770-1063778-1063898-1063906--/- ABR protein_coding -/- interior 17:1063771-1063899 128.0 Human
ABR/17:1064112-1064131-1065226-1065245--/- ABR protein_coding -/- interior 17:1064112-1065226 1114.0 Human
ABT1/6:26598508-26598508-26598022-26598022-+/+ ABT1 protein_coding +/+ interior 6:26598508-26598022 486.0 Human
ACAA1/3:38136891-38136894-38137016-38137019--/- ACAA1 protein_coding -/- interior 3:38136891-38137016 125.0 Human
ACAA2/18:49802695-49802699-49813530-49813534--/- ACAA2 protein_coding -/- partial 18:49802695-49813530 10835.0 Human
ACACA/17:37085581-37085587-37085835-37085841--/- ACACA protein_coding -/- interior 17:37085587-37085841 254.0 Human
ACACA/17:37196079-37196080-37196400-37196401--/- ACACA protein_coding -/- interior 17:37196079-37196400 321.0 Human
ACACA/17:37212740-37212741-37213097-37213098--/- ACACA protein_coding -/- interior 17:37212741-37213098 357.0 Human
ACACA/17:37212743-37212743-37213100-37213100--/- ACACA protein_coding -/- interior 17:37212743-37213100 357.0 Human