GEO DataSets

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Yersinia pestis CO92; Yersinia pestis

Type:

Expression profiling by array

Platforms:

GPL10439 GPL9009

48 Samples

Download data: TXT

(Submitter supplied) The etiologic agent of bubonic plague, Yersinia pestis, senses cell density-dependent chemical signals to synchronize transcription between cells of the population in a process named quorum sensing. Though the closely related enteric pathogen Y. pseudotuberculosis uses quorum sensing system to regulate motility, the role of YpeIR quorum sensing in Y. pestis has been unclear. YpeIR is one of the AHL quorum sensing system in Y. more...

Organism:

Yersinia pestis

Type:

Expression profiling by array

Platform:

GPL10439

6 Samples

Download data: TXT

(Submitter supplied) Temperature is a key environmental factor for facultative pathogens during the host adaptation response. To assess the functional role of temperature in Yersinia pestis, a microarray study was conducted comparing the Δpgm (pigmentation-negative) R88 strain grown at 37°C or 30°C.

Organism:

Yersinia pestis

Type:

Expression profiling by array

Platform:

GPL10439

6 Samples

Download data: TXT

(Submitter supplied) Yersinia pestis, the etiological agent of plague, is able to sense cell density by quorum sensing. The function of quorum sensing in Y. pestis is not clear. Here, the process of AHL quorum sensing was investigated by comparing transcript profiles when two AHL quorum-sensing signals are added in. The strain Δpgm (pigmentation-negative) mutant was called wild type. The two AHLs signals are N-(3-Oxooctanoyl)-L-homoserine lactone and N-Hexanoyl-DL-homoserine lactone.The control consisted of cells grown and treated under the same conditions without added signals.

Organism:

Yersinia pestis

Type:

Expression profiling by array

Platform:

GPL10439

6 Samples

Download data: TXT

(Submitter supplied) Yersinia pestis, the etiological agent of plague, is able to sense cell density by quorum sensing. The function of quorum sensing in Y. pestis is not clear. Here, the process of autoinducer-2 (AI-2) quorum sensing was investigated by comparing transcript profiles when AI-2 quorum-sensing signal is added in to control. The strain Δpgm (pigmentation-negative) mutant was used as wild type.The control consisted of cells grown and treated under the same conditions without added signals.

Organism:

Yersinia pestis

Type:

Expression profiling by array

Platform:

GPL10439

6 Samples

Download data: TXT

(Submitter supplied) Yersinia pestis, the etiological agent of plague, is able to sense cell density by quorum sensing. The function of quorum sensing in Y. pestis is not clear. Here, the process of AHL quorum sensing was investigated by comparing transcript profiles when two AHL quorum-sensing signals are added in. The strain ∆pgm (pigmentation-negative) mutant R88 was called wild type. The two AHLs signals are N-(3-Oxooctanoyl)-L-homoserine lactone and N-Hexanoyl-DL-homoserine lactone.The control consisted of cells grown and treated under the same conditions without added signals.

Organism:

Yersinia pestis

Type:

Expression profiling by array

Platform:

GPL10439

6 Samples

Download data: TXT

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Yersinia pestis

Type:

Expression profiling by array

Platforms:

GPL10439 GPL10017

54 Samples

Download data: TXT

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Yersinia pestis

Type:

Expression profiling by array

Platform:

GPL10439

30 Samples

Download data: TXT

(Submitter supplied) Yersinia pestis, the etiological agent of plague, is able to sense cell density by quorum sensing. The function of quorum sensing in Y. pestis is not clear. Here, the process of autoinducer 2 (AI-2) quorum sensing was investigated by comparing transcript profiles when luxS gene was knocked out. The luxS gene encodes S-ribosylhomocysteinase which can produce DPD, a precursor of AI-2. The strain ∆pgm (pigmentation-negative) mutant R88 was called wild type. more...

Organism:

Yersinia pestis

Type:

Expression profiling by array

Platform:

GPL10439

6 Samples

Download data: TXT

(Submitter supplied) Yersinia pestis, the etiological agent of plague, is able to sense cell density by quorum sensing. The function of quorum sensing in Y. pestis is not clear. Here, the process of autoinducer-2 (AI-2) quorum sensing was investigated by comparing transcript profiles when AI-2 quorum-sensing signal is added in. The strain ∆pgm(pigmentation-negative) mutant R88 was used as wild type. The control consisted of cells grown and treated under the same conditions without added signals.

Organism:

Yersinia pestis

Type:

Expression profiling by array

Platform:

GPL10439

6 Samples

Download data: TXT

(Submitter supplied) Yersinia pestis, the etiological agent of plague, is able to sense cell density by quorum sensing. The function of quorum sensing in Y. pestis is not clear. Here, the process of quorum sensing was investigated by comparing transcript profiles when three quorum-sensing signals are added in. The strain ∆pgm (pigmentation-negative) mutant R88 was used as wild type. The three signals are AI-2, AHLs (N-(3-Oxooctanoyl)-L-homoserine lactone and N-Hexanoyl-DL-homoserine lactone).The control consisted of cells grown and treated under the same conditions without added signals.

Organism:

Yersinia pestis

Type:

Expression profiling by array

Platform:

GPL10439

6 Samples

Download data: TXT

(Submitter supplied) Yersinia pestis, the etiological agent of plague, is able to sense cell density by quorum sensing. The function of quorum sensing in Y. pestis is not clear. Here, the process of quorum sensing was investigated by comparing transcript profiles when three quorum-sensing synthase genes are knocked out. Two strains, ∆pgm (pigmentation-negative) mutant R88 as treatment and quorum sensing null strain R115 with mutations (∆pgm, ∆ypeIR, ∆yspIR, and ∆luxS) as control, are used in this analysis.

Organism:

Yersinia pestis

Type:

Expression profiling by array

Platform:

GPL10439

6 Samples

Download data: TXT