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.
The insertion region (gray box) of SpUP is revealed by the alignment of SpUP against EcUP and EcPNP. Magenta, green, and orange triangles indicate conserved residues in the phosphate-binding site, ribose-binding site, and uracil-binding site of SpUP, respectively. The residues marked with an asterisk are the two novel residues found in the uracil-binding site of SpUP.
