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.
Circular RNA synthesis. Most pre-mRNA remove introns and splice the remaining exon sequences to form mature linear mRNA. In circRNA, the upstream 5′ cleavage site and the downstream 3′ cleavage site are linked by a covalent bond to form a circular transcript. circRNA: Circular RNA; pre-mRNA: Precursor mRNA.
