Figure 2.

An expanding universe of ncRNA classification and function. Accumulating evidence has uncovered the presence and importance of ncRNAs, which includes miRNAs, lncRNAs, and circRNAs. Intensive research studies have revealed that different ncRNAs play key roles in a great variety of processes, including transcriptional regulation, chromosome replication, RNA processing and modification, mRNA stability and translation, and even protein degradation and translocation. circRNA, circular RNA; lncRNA, long noncoding RNA; mRNA, messenger RNA; miRNA, microRNA; ncRNA, noncoding RNA; RBP, RNA‐binding protein