Cystobasidium pallidum
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REPOSITORIES: ENA
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Project description:Treponema pallidum ssp. pallidum, the causative agent of syphilis, can now be cultured continuously in vitro utilizing a tissue culture system, and the multiplication rates are similar to those obtained in experimental infection of rabbits. In this study, the RNA transcript profiles of the T. pallidum Nichols during in vitro culture and rabbit infection were compared to examine whether gene expression patterns differed in these two environments. To this end, RNA preparations were converted to cDNA and subjected to RNA-seq using high throughput Illumina sequencing; reverse transcriptase quantitative PCR was also performed on selected genes for validation of results. The transcript profiles in the in vivo and in vitro environments were remarkably similar, exhibiting a high degree of concordance overall. However, transcript levels of 94 genes (9%) out of the 1,063 predicted genes in the T. pallidum genome were significantly different during rabbit infection versus in vitro culture, varying by up to 8-fold in the two environments. Genes that exhibited significantly higher transcript levels during rabbit infection included those encoding multiple ribosomal proteins, several prominent membrane proteins, glycolysis-associated enzymes, replication initiator DnaA, rubredoxin, thioredoxin, two putative regulatory proteins, and proteins associated with solute transport. In vitro cultured T. pallidum had higher transcript levels of DNA repair proteins, cofactor synthesis enzymes, and several hypothetical proteins. The overall concordance of the transcript profiles may indicate that these environments are highly similar in terms of their effects on T. pallidum physiology and growth, and may also reflect a relatively low level of transcriptional regulation in this reduced genome organism.
2021-10-12 | GSE185709 | GEO
Project description:Treponema pallidum subsp. pallidum Genome sequencing and assembly
| PRJNA544785 | ENA
Project description:Treponema pallidum subsp. pallidum Genome sequencing and assembly
| PRJNA508872 | ENA
Project description:The experiment was performed with the intention of collecting transcriptomic data from isolated cell types (spore, stalk and vegetative cells) in Dictyostelium lacteum as well as from cysts in Polyshpondlyium pallidum. By combining these data with similar cell-type specific RNA-Seq data from other organisms, and by examining the expression patterns of transcription factor genes, we tried to characterize how gene regulation for cell differentiation evolved in Dictyostelia. Specifically ,we dissociated and collected spore and stalk from the fruiting bodies of D. lacteum at 24 hours of development. We also collected exponentially growing vegetative cells of D. lacteum. For collecting P. pallidum cyst samples, cells were induced to encyst with sorbitol, and samples were collected at 0, 8, 16, and 24 h of incubation. RNA was extracted using the RNeasy kit (QIAGEN), and cDNA libraries were made using the Illumina TruSeq kit. The Illumina sequencing platforms (NextSeq500 for D. lacteum samples, and Hi-seq 2000 for P. pallidum samples) were used for sequencing.
2019-10-31 | E-MTAB-7824 | biostudies-arrayexpress
Project description:Cystobasidium minutum MCA 4210 Genome sequencing
| PRJNA218034 | ENA
Project description:Treponema pallidum subsp. pallidum strain:Grady Genome sequencing
| PRJNA503731 | ENA
Project description:Treponema pallidum subsp. pallidum str. Chicago genome sequencing
| PRJNA39981 | ENA
Project description:Treponema pallidum subsp. pallidum strain:UZ1974 Genome sequencing
| PRJNA445953 | ENA
Project description:Treponema pallidum subsp. pallidum strain:Amoy Genome sequencing
| PRJNA315615 | ENA