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Tissue: A549
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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
AATF/17:36953232-36953234-36952999-36953001-+/+ AATF protein_coding +/+ interior 17:36953234-36953001 233.0 Human
AATF/17:36953256-36953263-36953118-36953125-+/+ AATF protein_coding +/+ interior 17:36953256-36953118 138.0 Human
AATF/17:36953257-36953259-36953129-36953131-+/+ AATF protein_coding +/+ interior 17:36953257-36953129 128.0 Human
AATF/17:36953270-36953277-36953119-36953126-+/+ AATF protein_coding +/+ interior 17:36953270-36953119 151.0 Human
AATF/17:36953271-36953277-36953159-36953165-+/+ AATF protein_coding +/+ interior 17:36953271-36953159 112.0 Human
AATF/17:36953282-36953287-36953160-36953165-+/+ AATF protein_coding +/+ interior 17:36953282-36953160 122.0 Human
AATF/17:36953908-36953909-36952886-36952887-+/+ AATF protein_coding +/+ canonical (exon-exon) 17:36953909-36952887 1022.0 Human
ABCB8/7:151033885-151033892-151033672-151033679-+/+ ABCB8 protein_coding +/+ interior 7:151033885-151033672 213.0 Human
ABCB8/7:151045430-151045318-+/+ ABCB8 protein_coding +/+ interior 7:151045430-151045318 112.0 Human
ABCC1/16:16007992-16007993-16007815-16007816-+/+ ABCC1 protein_coding +/+ canonical (exon-exon) 16:16007992-16007815 177.0 Human