Unknown,Transcriptomics,Genomics,Proteomics

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Whole genome transcritptional comparison of Group A Streptococcus (Streptococcus pyogenes) serotype M1 pre-epidemic and epidemic isolates


ABSTRACT: This transcriptional analysis is a follow up to a population genomic investigation of 3615 Streptococcus pyogenes serotype M1 strains whch are responsible for an epidemic of human invasive infections (www.pnas.org/cgi/doi/10.1073/pnas.1403138111), The goal was to assess gene expression differences between predecessor pre-epidemic M1 strains and their descendent epidemic M1 strains to gain insights into the underlying genetic basis for the shift in the frequency and severity of human infections caused by these pathogenic bacteria The transcriptomes of 7 GAS M1 strains, 4 pre-epidemic and 3 epidemic, were compared at two phases of growth, mid-exponential and early-stationary, using 3 biologial replicates, to identify genes differentially expressed between the pre-epidemic and epidemic isolates with the goal of to gaining insight into the underlying genetic basis for the evolutionary emergence, increased frequency and severity of the epidemic strains relative to the pre-epidemic strains

ORGANISM(S): Streptococcus pyogenes

SUBMITTER: Stephen Beres 

PROVIDER: E-GEOD-70496 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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