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.
Cladograms of pneumococcal and VGS parC (a), parE (b), gyrA (c), and gyrB (d) QRDR nucleotide sequences. QRDRs are as follows: parC, 322 bp encoding residues 49 to 155; parE, 185 bp encoding residues 429 to 489; gyrA, 318 bp encoding residues 55 to 160; gyrB, 430 bp encoding residues 375 to 517. VGS species are indicated as follows: O, S. oralis; S, S. sanguis; M, S. mitis.
