Project description:Serotype prevalence and antimicrobial susceptibility of Streptococcus agalactiae in pregnant women and neonates of Hong Kong, China
Project description:Streptococcus agalactiae, also known as Group B streptococcus, emerged in the 1960s as a leading cause of septicemia and meningitis in neonates. It is also an increasing cause of infections in adults with underlying diseases. To characterize transcription start sites (TSS) in the hypervirulent ST17 lineage (strain BM110) we used a differential RNA-seq strategy, based on selective Tobacco Acid Pyrophosphatase (TAP) treatment and adapter ligation, which differentiates primary transcripts and processed RNAs
Project description:In Homo sapiens, Streptococcus agalactiae is a common colonizer of the rectovaginal tract and a fundamental cause of neonatal and non-pregnant adults infectious diseases. It also causes infectious disease in fish which compromises food safety as well as possesses a zoonotic risk. Lysine crotonylation (Kcr) is a type of histone post-translational modifications discovered in 2011. Kcr dynamics are involved in active gene promoters and potential enhancers in yeast and mammalian. However, lysine crotonylation in S. agalactiae has not yet been studied. In the present study, we conducted the first proteome-wide profiling of Kcr in S. agalactiae and identified 241 Kcr sites on 675 proteins, representing the Kcr event in S. agalactiae. Bioinformatics analysis showed that 164 sequences were matched to a total of six definitively conserved motifs, and many of them were significantly enriched in metabolic processes, cellular process, and single-organism processes. Moreover, we found four crotonylation modified proteins predicted as quorum sensing system and virulence factors, which indicate the important role of PTM on bacterial QS system and virulence. These data represent the first report of a global crotonylation proteome and provide a promising starting point for further functional research of crotonylation in bacterial virulence in S. agalactiae.
Project description:Transcriptome analysis of Streptococcus agalactiae (group B Streptococcus) grown under control conditions or coincubated with serine hydroxamate to induce the bacterial stringent response
Project description:Total RNA was isolated from mid-log phase Streptococcus agalactiae cells deficient in SczA (∆sczA strain GU2791), grown in Todd-Hewitt broth (THB) medium and sequenced using Illumina NextSeq500.
Project description:Total RNA was isolated from mid-log phase Streptococcus agalactiae cells deficient in CovR (∆covR strain GU2400), grown in Todd-Hewitt broth (THB) medium and sequenced using Illumina NextSeq500
Project description:Total RNA was isolated from mid-log phase Streptococcus agalactiae cells deficient in CopY (∆copY strain GU2857), grown in Todd-Hewitt broth (THB) medium and sequenced using Illumina NextSeq500.
Project description:Total RNA was isolated from mid-log phase Streptococcus agalactiae 874391 wild-type cells grown in Todd-Hewitt broth (THB) medium and sequenced using Illumina NextSeq500
