Project description:Investigation of whole genome gene expression level changes in S. pneumoniae KCTC 5080T, S. mitis KCTC 3556T, S. oralis KCTC 13048T, and S. pseudopneumoniae CCUG 49455T. This proves that transcriptional profiling can facilitate in elucidating the genetic distance between closely related strains. A one chip study using total RNA recovered from S. pseudopneumoniae CCUG 49455T with three strain. For the the transcriptome of S. pseudopneumoniae CCUG 49455T was analyzed using the S. pneumoniae R6 microarray platform and compared with those of S. pneumoniae KCTC 5080T, S. mitis KCTC 3556T, and S. oralis KCTC 13048T strains.

2012-04-26 | E-GEOD-37539 | biostudies-arrayexpress

Transcriptional Effects of Melatonin of the Gut Commensal Bacterium Klebsiella aerogenes

Project description:In this study, we implemented RNA sequencing to identify melatonin sensitive transcripts during culture maturation. This work demonstrates that majority of melatonin sensitive genes are growth stage specific. Melatonin caused differential gene expression of 81 transcripts during the exponential growth and 30 during early stationary phase. This indole molecule affects genes related to the biofilm formation, fimbria biogenesis, transcriptional regulators, carbohydrate transport and metabolism, phosphotransferase system (PTS), stress response, metal ion binding and transport. It is likely that differential expression of biofilm and fimbria related genes is responsible for differences in macrocolony area. Additionally, melatonin potentially helps Klebsiella aerogenes in host colonization.

2022-03-23 | GSE172068 | GEO

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