Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2021 Nov 22;9:791892. doi: 10.3389/fcell.2021.791892

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2021 Guo and Piao.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

PMC Copyright notice

Biological function of circRNAs. (A). CircRNAs can act as miRNA sponges to regulate the expression of downstream genes. (B). CircRNAs can bind to RNA binding protein and regulate parental gene expression. (C). Some circRNAs can be carried by exosomes and involved in the process of cell-cell communication. (D). CircRNAs can encode proteins based on IRES-driven and m6A-driven models. (E). CircRNAs can bind with proteins to establish circRNA-protein complexes and alter the functions of some proteins.