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.
Nucleotide and derived amino acid sequences of the 3′ end of ureD in Y. pestis (Yp) and Y. pseudotuberculosis (Ypst). An extra G residue (the G-rich region is shown in the black box) in the Y. pestis gene results in a frameshift mutation which creates a premature stop codon (TAA).
