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 the PE and PPE protein families present within the ESAT-6 (esx) gene clusters in M. tuberculosis H37Rv. Phylogenetic trees of the PE and PPE proteins, respectively, present within the ESAT-6 (esx) gene clusters in M. tuberculosis H37Rv, demonstrating a duplication order similar to that observed with other genes in the M. tuberculosis ESAT-6 (esx) gene cluster regions [1]. (A) PE proteins, (B) PPE proteins and (C) ESAT-6/CFP-10 proteins.
