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Updated: Aug 30, 2026
High-throughput Assay to Phenotype Salmonella enterica Typhimurium Association, Invasion, and Replication in Macrophages
Published on: August 11, 2014
Proteome analysis of Salmonella enterica serovar Typhimurium fis mutant
Hyunjin Yoon1, Sangyong Lim, Sunggi Heu
1Department of Food Science and Technology, School of Agricultural Biotechnology, and Center for Agricultural Biomaterials, Seoul National University, Seoul 151-742, South Korea.
Abstract:
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.
