Circular RNAs (circRNAs) constitute an emerging class of widespread, abundant, and evolutionarily conserved noncoding RNA. They play important and diverse roles in cell development, growth, and tumorigenesis, but functions of the majority of circRNAs remain enigmatic. In order to investigate circRNA function it is necessary to manipulate its expression. While various standard approaches exist for circRNA knockdown, here we present cloning vectors for simplifying the laborious process of cloning circRNAs to achieve high-efficiency overexpression in mammalian cell lines.
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