The impact of slyA on cell metabolism of Salmonella Typhimurium: a joint study of transcriptomics and metabolomics

ABSTRACT:

Salmonella Typhimurium (S. typhimurium), a gram-negative foodborne pathogen, is the leading cause of Salmonella food poisoning in humans. slyA has been demonstrated to be a critical transcriptional regulator in S. typhimurium, enabling the pathogen to survive in host cells by modulating the expression of hundreds of genes.

In this study, we used gas chromatography coupled with tandem mass spectrometry (GC-MS/MS) to investigate the potential effect of slyA on the cell metabolism of S. typhimurium. The metabolite profiling data were linked to the transcriptomic data to elucidate the possible roles of slyA in the metabolism of Salmonella. The metabolome data indicated that several glycolysis- and lipid metabolism-associated pathways, including the turnover of glycerolipid, pyruvate, butanoate and glycerophospholipid, were affected in the absence of slyA. In addition, the mRNA levels of several genes associated with glycolysis and lipid turnover were downregulated when slyA was deleted, including pagP, fadL, mgtB, iacp and yciA. Collectively, this evidence suggests that SlyA might impact glycolysis and lipid turnover in Salmonella at the transcriptional level.

Linked Data:

The transcriptomic data haa been deposited in the NCBI SRS database, access number PRJNA656165.

INSTRUMENT(S): Gas Chromatography MS - Positive (GC-MS (Positive))

PROVIDER: MTBLS1858 | MetaboLights | 2020-10-11

REPOSITORIES: MetaboLights