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.
Nucleotides preceding the poly(A) tail of two Spn1 mRNA variants with shortened 3′-untranslated region are indicated by white-on-black printing. The P1–P1′ bond (triangle) and the N-glycosylation signals (open boxes) are marked.
