Difference between ciRNA and ICF's?

Question

[neha 114]

Is there any difference between ciRNA (circular intronic RNA) and ICF's(intronic circular RNA fragment)? If yes, please suggest.

[PoGibas]

I guess this is more biology (biology.stackexchange) related question.

Short answer: ICF's originate from introns, ciRNA originate from non-coding exons.

[Jean-Karim Heriche]

Not according to this review: "Circular intronic RNAs (ciRNAs) are intron lariats that have been circularized at the branchpoint 2'-5' linkage..."

Answer 1

[Jean-Karim Heriche]

Here is a review on circular RNAs.