Type III Secretion of Salmonella enterica Serovar Typhimurium Translocated Effectors and SseFG

作者：Imke Hansen-Wester, Bärbel Stecher, Michael Hensel · 发表于：Infection and Immunity · 年份：2002 · DOI：10.1128/iai.70.3.1403-1409.2002 · 被引用次数：88 · 研究领域：Salmonella and Campylobacter epidemiology、Vibrio bacteria research studies、Escherichia coli research studies

The type III secretion system (TTSS) encoded by Salmonella enterica serovar Typhimurium pathogenicity island 2 (SPI2) is employed by Salmonella enterica for interaction with host cells during the intracellular phase of pathogenesis. This TTSS secretes a set of SPI2-encoded proteins in vitro and translocates Salmonella serovar Typhimurium translocated effectors (STE) that are encoded by genes outside of SPI2 into host cells. Using an epitope-tagging approach, we analyzed secretion of proteins by the TTSS of SPI2 and identified SseF and SseG as further secreted substrate proteins. Three members of the STE family, SifA, SifB, and SseJ, were secreted under conditions that also induce secretion of SPI2-encoded substrate proteins.