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.
Phylogeny of NirK deduced amino acid sequences based on distance matrix analysis (12) of 144 amino acids. New sequences from this study are in bold type, and sequences which amplified with Cunir3-Cunir4 are indicated with an asterisk. Bootstrap values greater than 50% are shown. The scale bar indicates 0.2 substitutions per amino acid position.
