Identification of the hopG gene, a component of Escherichia coli K-12 type II export system, and its conservation among different pathogenic Escherichia coli and Shigella isolates.

摘要

The Escherichia coli K-12 gene coding for a component of a type II export system was identified and characterized. The HopG protein contains a typical prepilin peptidase cleavage site and has a high degree of homology with proteins PulG, OutG, and ExeG, which are components of type II secretion systems from Klebsiella pneumoniae, Erwinia carotovora, and Aeromonas hydrophila.