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.
Southern blot analysis of chromosomal DNA preparations from H. ducreyi wild-type and mutant strains. Chromosomal DNAs were digested with SpeI, resolved by agarose gel electrophoresis, and probed with either a 1-kb SpeI fragment derived from the H. ducreyi znuA gene (lanes 1 and 2) or with the kan2 cartridge (lanes 3 and 4). Lanes 1 and 3, strain 35000; lanes 2 and 4, znuA mutant 35000.901. Size markers (in kilobases) are on the left side of the figure.
