Table 1.

Classification of circRNAs

Type	Example	References
Exonic circRNAs	HIPK2/3	[8]
Intronic circRNA	ci-ankrd52	[11]
Exonic-intronic circRNAs	cSMARCA5	[16]
Intergenic circRNAs	chr5: 10,213,603|10,224,173	[13]
tRNA intronic circRNAs	tric31905	[14]
Antisense circRNAs	circANRIL	[17]