Table 2.

CircRNA databases

Name	Website address	Description	Ref.
circBase	https://circbase.org/	A public dataset of thousands of circRNAs in eukaryotic cells	[127]
circInteractome	https://circinteractome.nia.nih.gov/	A computational tool enabling the prediction and mapping of binding sites for RBPs and miRNAs on reported circRNAs	[128]
CIRCpedia V2	https://www.picb.ac.cn/rnomics/circpedia/	An updated comprehensive database containing circRNA annotations from over 180 RNA-seq datasets across six different species	[129]
circRNADb	https://reprod.njmu.edu.cn/cgi-bin/circrnadb/circRNADb.php	A comprehensive database of circular RNA molecules in humans	[130]
CSCD	https://gb.whu.edu.cn/CSCD	An integrated interactional database of cancer-specific circRNAs	[131]
exoRBase	https://www.exoRBase.org	A repository of circRNA, lncRNA and mRNA derived from RNA-seq data analyses of human blood exosomes	[132]
MiOncoCirc	https://mioncocirc.github.io/	A compendium of circular RNAs compiled from cancer clinical samples	[133]
CircAtlas 2.0	https://circatlas.biols.ac.cn/	A database of over one million of circRNAs across 6 species (human, macaca, mouse, rat, pig, chicken) and tissues	[134]
CircBank	https://www.circbank.cn/index.html	A comprehensive database of human circRNA including more than 140,000 human annotated circRNA from different source	[135]
NoncoRNA	https://www.ncdtcdb.cn:8080/NoncoRNA/	A database for experimentally supported ncRNA and drug target associations in cancer	[136]