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 wild-type H37Rv and H37Rv ΔleuD (mc23032). Genomic DNAs from wild-type H37Rv (lane 1) and the leucine auxotroph mc23032 (lane 2) were isolated, digested with Acc65I, and probed with the 600-bp leuD gene. Molecular size markers (in kilobases) are indicated on the left.
