Fig. 2From: The novel roles of circRNAs in human cancerFunctions of circRNAs. a CircRNAs can sequester miRNAs to regulate the target gene of the miRNAs. b CircRNAs can promote parental gene transcription through binding to RNA pol II and U1 snRNP. c circRNAs can bind to proteins and work as protein decoys. d Some circRNAs can encode proteins driven by IRES or m6a modificationBack to article page