Dataset Information

A multi-condition inter-strain transcriptomic compendium identifies phenotypic differences between European and African Salmonella pathovariants (C4PR_LIV)

ABSTRACT: Salmonella Typhimurium ST313 is associated with invasive nontyphoidal salmonellosis (iNTS) disease in sub-Saharan Africa. Using ST313 isolate, D23580, and the well-characterized ST19 isolate 4/74, that causes gastroenteritis across Europe, we generated transcriptomic data from sixteen infection-relevant in vitro conditions and during infection of murine macrophages (http://bioinf.gen.tcd.ie/cgi-bin/jay/salcom_v2.pl?db=salcom_africa_new_HL). The transcriptional response of the two S. Typhimurium pathovariants to environmental stress was broadly similar. Comparative gene expression analysis identified virulence and metabolic genes that were up/down-regulated in D23580 versus 4/74. Findings were backed up by proteomic analysis, with12 genes being differentially-expressed at both the transcriptional and protein levels including melA and cysS. The data led us to discover that the ablation of melibiose utilization was caused by 3 SNP mutations in D23580 and to identify a novel plasmid-maintenance system involving a plasmid-encoded CysS cysteinyl-tRNA synthetase. Our functional transcriptomic analysis represents a powerful tool for identification of key phenotypic differences between bacterial pathovariants.

INSTRUMENT(S): Q Exactive

ORGANISM(S): Salmonella Enterica Subsp. Enterica Serovar Typhimurium Str. D23580

SUBMITTER: Philip Brownridge

LAB HEAD: Jay C. D. Hinton

PROVIDER: PXD011041 | Pride | 2019-01-11

REPOSITORIES: Pride

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Dataset's files

Source:

			Action	DRS
	AAsequences_D23580_474_Parsed.fasta	Fasta
	PB200317_Salmonella_Progenesis.mzid	Mzid
	PB200317_Salmonella_SL1344vD23580_protein.csv	Csv
	PB_200317_forMascot.mgf	Mgf
	Salmonella_230614_01..mzid	Mzid

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Publications

Adding function to the genome of African Salmonella Typhimurium ST313 strain D23580.

Canals Rocío R Hammarlöf Disa L DL Kröger Carsten C Owen Siân V SV Fong Wai Yee WY Lacharme-Lora Lizeth L Zhu Xiaojun X Wenner Nicolas N Carden Sarah E SE Honeycutt Jared J Monack Denise M DM Kingsley Robert A RA Brownridge Philip P Chaudhuri Roy R RR Rowe Will P M WPM Predeus Alexander V AV Hokamp Karsten K Gordon Melita A MA Hinton Jay C D JCD

PLoS biology 20190115 1

Salmonella Typhimurium sequence type (ST) 313 causes invasive nontyphoidal Salmonella (iNTS) disease in sub-Saharan Africa, targeting susceptible HIV+, malarial, or malnourished individuals. An in-depth genomic comparison between the ST313 isolate D23580 and the well-characterized ST19 isolate 4/74 that causes gastroenteritis across the globe revealed extensive synteny. To understand how the 856 nucleotide variations generated phenotypic differences, we devised a large-scale experimental approac ...[more]

PMID: 30645593

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