Open AccessProteome analysis of Salmonella enterica serovar Typhimurium fis mutant
Author(s) -
Yoon Hyunjin,
Lim Sangyong,
Heu Sunggi,
Choi Sangho,
Ryu Sangryeol
Publication year - 2003
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1016/s0378-1097(03)00641-4
Subject(s) - salmonella enterica , biology , pathogenicity island , salmonella , proteome , microbiology and biotechnology , serotype , mutant , gene , proteomics , gene expression , flagellum , virulence , genetics , bacteria
Salmonella enterica serovar Typhimurium is an enteric pathogen and a principal cause of gastroenteritis in humans. The factor‐for‐inversion stimulation protein (Fis) is known to play a pivotal role in the expression of Salmonella pathogenicity island (SPI)‐1 genes in addition to various cellular processes such as recombination, replication, and transcription. In order to understand Fis function in pathogenicity of Salmonella , we performed two‐dimensional gel electrophoresis and identified proteins whose expression pattern is affected by Fis using mass spectrometry. The results revealed various proteins that can be grouped according to their respective cellular functions. These groups include the genes involved in the metabolism of sugar, flagella synthesis, translation, and SPI expression. Changes in SPI expression suggest the possibility that regulation of genes in SPI‐2 as well as SPI‐1 is affected by Fis.