PTA-Mob
Ontology highlight
ABSTRACT:
PROVIDER: PRJEB60444 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Bacillus velezensis strain GH1-13 with a native conjugative plasmid (pBV71) is thought to be beneficial to the bacterium, although no information on its effects exists. Here we show that strain GH1-13 frequently lost the plasmid during normal growth conditions in a rich medium and changed the morphology and sensitivity to selenite and tellurite. Compared to the plasmid-cured cells, the wild-type and complemented cells exhibited multicellular behavior with the expression of conjugative type IV pili and regulatory Rap homologous genes that regulate the interconnection between conjugation and biofilm formation. Further omics-based analyses of morphogenesis, biofilm formation, and antibiotic synthesis suggest that the conjugative plasmid activates envelope stress responses in association with increased biosynthesis of extracellular polysaccharide and antibiotics for protective functions of the host during exponential phase.
2021-05-17 | PXD017305 | Pride
Project description:To search potential point mutation in J2530 strain which could suppress uvrD252 effect on conjugative plasmid transfer
2023-02-13 | E-MTAB-11748 | biostudies-arrayexpress
Project description:we examined the three different mature biofilms and searched the genes which promoted the rapid biofilm formation when their population hosing the plasmids. We investigate the global transcriptional differences between the non-conjugative or conjugative plasmid-carrying and plasmid-free strains.
2007-05-15 | E-MEXP-953 | biostudies-arrayexpress
Project description:The impact of the conjugative plasmid pCAR1, which is involved in carbazole degradation, on the proteome, acetylome, and succinylome of host Pseudomonas putida KT2440 was investigated using a stable isotope labeling by amino acids in cell culture (SILAC)-based quantitative analysis.
2018-09-24 | PXD007089 | Pride
Project description:The impact of the conjugative plasmid pCAR1, which is involved in carbazole degradation, on the proteome, acetylome, and succinylome of host Pseudomonas putida KT2440 was investigated using a stable isotope labeling by amino acids in cell culture (SILAC)-based quantitative analysis.
2018-11-22 | PXD007090 | Pride
Project description:Horizontal gene transfer via plasmid conjugation is a major driving force in microbial evolution. Transfer of conjugative plasmids is a complex process that needs to be synchronized with the physiological state of the bacterial host. While several host transcription factors are known to control the plasmid-borne transfer control genes, RNA-based regulatory circuits for host-plasmid communication remain unknown. Here, we describe a post-transcriptional mechanism whereby the Hfq-dependent small RNA, RprA, inhibits transfer of pSLT, the virulence plasmid of Salmonella enterica. RprA employs two different seed pairing domains to recognize and activate the mRNAs of both the sigma-factor S and RicI, a cytoplasmic membrane protein. The latter is a hitherto unknown conjugation inhibitor whose transcription requires S. Together, RprA and S constitute a feed-forward loop with AND-gate logic which tightly controls RicI synthesis for selective suppression of plasmid conjugation under membrane stress. This study reports the first sRNA-controlled feed-forward loop based on double target activation and an unexpected function for a core-genome encoded small RNA in controlling extrachromosomal DNA transfer.
2015-03-24 | GSE67187 | GEO
Project description:The impact of the conjugative plasmid pCAR1, which is involved in carbazole degradation, on the succinylome of host Pseudomonas putida KT2440 was investigated using a stable isotope labeling by amino acids in cell culture (SILAC)-based quantitative analysis. This dataset is related to PXD007090.
2018-11-21 | PXD007722 | Pride
Project description:The impact of the conjugative plasmid pCAR1, which is involved in carbazole degradation, on the succinylome of host Pseudomonas putida KT2440 was investigated using a stable isotope labeling by amino acids in cell culture (SILAC)-based quantitative analysis. This dataset is related to PXD007089.
2018-11-21 | PXD007133 | Pride
Project description:Impacts of plasmid carriage on its host cell were comprehensively analyzed using conjugative plasmid pCAR1 in the three different kinds of hosts, Pseudomonas putida KT2440, P. aeruginosa PAO1, and P. fluorescens Pf0-1. Various analyses of the host phenotype showed that pCAR1 carriage reduced host fitness, swimming motility, and resistances to osmotic- or pH-stress, and brought about the alterations of primary metabolic capacities in the TCA cycle or those several steps away from the TCA cycle in the host cells. Growth phase-dependent transcriptome analyses were performed with the classification of the annotated genes based on their identities among the three hosts and their putative functions. pCAR1 carriage affected host transcriptome more greatly at the transition and stationary phases in each host. The transcriptome responses were more similar between KT2440 and PAO1 than between other host combinations, and many genes, such as for ribosomal proteins, F-type ATPase, and RNAP core, in both strains were commonly not suppressed in their stationary phases. These responses may have resulted in the reduction of host fitness, motility, and stress resistances. Host-specific responses to plasmid carriage were transcriptional changes of genes on putative prophage or foreign DNA regions. The extent of the impacts in host phenotypes and transcriptomes was similarly the largest in KT2440 and the lowest in Pf0-1. The host alterations controlled by pCAR1 carriage are important for understanding the fate of the plasmid and its host, plasmid maintenance, expression of plasmid genes, the host cell physiology, and host survivability in the environment.
2012-12-25 | GSE39636 | GEO
Project description:Rhizobia are gram-negative bacteria able to establish a symbiotic interaction with leguminous plants. Due to their nitrogen fixing capacity, the study of these microorganisms has acquired great relevance for the agriculture. Rhizobia usually harbor many plasmids in their genome which can be transferred to other organisms by conjugation. Two main mechanisms of regulation of rhizobial plasmid transfer have been described: Quorum sensing (QS) and rctA/rctB system. Nevertheless, new genes and molecules that modulate conjugative transfer have been recently described, demonstrating that new actors can tightly regulate the process. In this work, by means of bioinformatics tools and molecular biology approaches, two hypothetical genes are identified as playing key roles in conjugative transfer. These genes are located between conjugative genes of plasmid pLPU83a from Rhizobium favelukesii LPU83, a plasmid that showed a conjugative transfer behavior depending on the genomic background. One of the two mentioned genes, rcgA, is essential for conjugation, while the other, rcgR, acts as an inhibitor of the process. In addition to introducing this new regulatory mechanism, we show evidence of the functions of these genes in different genomic backgrounds, and confirmed that homologous proteins from non-closely related organisms play the same function. These findings set up a cornerstone for a new molecular circuit of conjugative transfer of plasmids.
2022-08-29 | PXD033583 | Pride