Table 2B.

Databases and online resources for circRNA research.

Database	Website	Note	PMID
CircBase	http://www.circbase.org/	Provides online data sets of circRNAs expression levels and sequence	25234927
CircInteractome	http://circinteractome.nia.nih.gov	Identification of RBPs and miRNAs binding sites on human circRNAs, design of divergent primers and siRNAs	26669964
circRNADb	http://reprod.njmu.edu.cn/circrnadb	Provides information on the circRNAs such as genomic information, genomic sequence, exon splicing, IRES, and open reading frames (ORFs)	27725737
exoRBase	http://www.exoRBase.org	Identify circRNAs in human blood exosomes. The first release of exoRBase contains 58,330 circRNAs	30053265
BBBomics	http://bioinformaticstools.mayo.edu/bbbomics/	CircRNA database specific for blood-brain barrier	26973449
CSCD	http://gb.whu.edu.cn/CSCD	A database for cancer-specific circRNAs that provides information on circRNAs expression, interacting miRNAs and RBPs	29036403
TSCD	http://gb.whu.edu.cn/TSCD	Provides a comprehensive characterization of tissue-specific circRNAs in the human and mouse genomes	27543790
CIRCpedia	http://www.picb.ac.cn/rnomics/circpedia	CircRNAs expressed in different species, cell types, and tissues	30172046
CircR2Disease	http://bioinfo.snnu.edu.cn/CircR2Disease/	Provides a comprehensive resource for circRNA deregulation in different diseases	29741596
TRcirc	http://www.licpathway.net/TRCirc	Provides a resource for transcriptional regulation information of circRNAs	30184150
CircView	http://gb.whu.edu.cn/CircView	Allow users to visualize circRNAs and view the regulatory elements, such as microRNA response elements and RNA-binding protein binding sites	29106456