IlSteIsla
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ABSTRACT:
PROVIDER: PRJEB92273 | ENA |
REPOSITORIES: ENA
Similar Datasets
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Project description:Transcriptome sequencing was carried out on an Illumina HiSeq platform to investigate CRISPR-Cas and DNA repair systems by Csa3b in Sulfolobus islandicus Rey15A. We compared the differently expressed genes in Sulfolobus islandicus Rey15A strain with csa3a overexpression vs. Sulfolobus islandicus Rey15A strain carrying an empty expression vector,We find thatcmr-α (SiRe_0890 ~ SiRe_0895) and cmr-β (SiRe_0597 ~ SiRe_0603)、the DNA double strand break (DSB)repair genes, including nurA, rad50, mre11, and herA (SiRe_0061 ~ SiRe_0064), as well as two subunits of DNA polymerase II (SiRe_0615 and SiRe_0617) that function in DNA repair, were significantly up-regulated. Our data indicated that the Csa3b regulator couples transcriptional activation of cmr genes, DNA repair genes.
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Project description:We report Over-expression of the wild type SisEndoMS in S. islandicus resulted in retarded growth and abnormal cell morphology. Transcriptomic analysis revealed that SisEndoMS overexpression led to upregulation of distinct sets of genes including the CRISPR-Cas IIIB system, methytransferases, and glycosyltransferases, which are mainly localized to a specific segment in the chromosome.
2020-09-23 | GSE158372 | GEO
Project description:Transcriptome sequencing was carried out on an Illumina HiSeq platform to investigate the activation of CRISPR-Cas and DNA repair systems by Csa3a in Sulfolobus islandicus Rey15A. We compared the differently expressed genes in Sulfolobus islandicus Rey15A strain with csa3a overexpression vs. Sulfolobus islandicus Rey15A strain carrying an empty expression vector, cas1 deletion strain with csa3a overexpression vs. cas1 deletion strain carrying an empty expression vector, as well as interference-deficient strain with csa3a overexpression vs. interference-deficient strain carrying an empty expression vector. We find that cas genes (SiRe_0760, SiRe_0761, SiRe_0762, SiRe_0763), nucleotidyltransferase domain of DNA polymerase beta (SiRe_0459), chromosome segregation protein (SMC)-related ATPase (SiRe_0649), SMC-related protein (SiRe_1142) and three HerA helicases involved in DNA double break repair (encoded by SiRe_0064 and SiRe_0095 of nurA-herA operons, and SiRe_1857) were significantly up-regulated. Our data indicated that the Csa3a regulator couples transcriptional activation of spacer acquisition genes, CRISPR RNA transcription, DNA repair and genome stability genes.
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Project description:Archaeal viruses display unusually high genetic and morphologic diversity. The Sulfolobus islandicus Rod Shaped Virus 2 (SIRV2) is a model to study virus-host interactions in Archaea. It is a lytic virus that exploits a unique egress mechanism based on formation of remarkable pyramidal structures on the host cell envelope. The hyperthermophilic Sulfolobus islandicus LAL14/1 is the natural host for SIRV2. RNA was isolated at 0,1,2,3,5,7 and 9 hours after SIRV2 infection of two S.islandicus cultures and analysed with whole transcriptome sequencing (RNAseq). As a control RNA was isolated at the same time points from two uninfected cultures.
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