GEO DataSets

(Submitter supplied) Biofilm formation is an important virulence trait of the pathogenic yeast Candida albicans. We have combined gene overexpression, strain barcoding and microarray profiling to screen a library of 531 C. albicans conditional overexpression strains (~10% of the genome) for genes affecting biofilm development in mixed-population experiments. The overexpression of 16 genes increased strain occupancy within a multi-strain biofilm, whereas overexpression of 4 genes decreased it. more...

Organism:

Candida albicans

Type:

Other

Platform:

GPL17420

8 Samples

Download data: GPR

(Submitter supplied) Transcript profiling from 3 biological replicates of C. albicans strains expressing PGA22 under the control of a tetracycline derivative-inducible promoter grown during 16h in the presence or absence of 50 µg/mL doxycycline (Dox)

Organism:

Candida albicans

Type:

Expression profiling by array

Platform:

GPL19289

3 Samples

Download data: GPR

(Submitter supplied) ILS1 mutated Candida albicans was unable to grow as yeast-phase cells but was capable of producing a tridimensional biofilm structure in spite of reduced metabolic activity. This biofilm still relied on the classical biofilm genes, while it differentially induced groups of genes involved in adhesion, protein synthesis, cell wall organization, and protein folding. Although the conditional mutant repressed genes annotated for morphology and homeostasis processes affecting morphology and metabolism, the dynamic cell growth enabled the construction of a complex biofilm community independent of ILS1.

Organism:

Candida albicans

Type:

Expression profiling by high throughput sequencing

Platform:

GPL23041

6 Samples

Download data: TSV

(Submitter supplied) To delineate the functional role of ZCF32 in Candida albicans biology, we carried out the genome wide expression analysis of wild-type and zcf32 null mutants by global expression array. We analysed the gene expression profiles of YPK102/1 and YPK102/2 and the parent wild type (SC5314) strain grown in YPD liquid medium at 30°C till the start of the stationary phase. In the microarray analysis, a total of 607 genes were found to be differentially expressed (fold change < 1.5 at p-value < 0.05) between the wild type and two zcf32 null mutants. more...

Organism:

Candida albicans

Type:

Expression profiling by array

Platform:

GPL21258

4 Samples

Download data: TXT

(Submitter supplied) Biofilm formation on medically implanted devices by Candida albicans poses a significant clinical challenge. Here we compared biofilm-associated gene expression in two clinical C. albicans isolates, SC5314 and WO-1, to identify shared gene regulatory responses that may be functionally relevant. Among the 50 genes most highly expressed in biofilms relative to planktonic (suspension-grown) cells, we were able to recover insertion mutations in 25 genes. more...

Organism:

Candida albicans

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL16787 GPL15645

16 Samples

Download data: TXT

(Submitter supplied) Biofilms are sessile microbial communities that are often resistant to conventional antimicrobial therapeutics and the host immune system. Candida albicans is an opportunistic pathogenic yeast and responsible for candidiasis. It readily colonizes host tissues and implant devices, and forms biofilms, which play an important role in pathogenesis and drug resistance. Its morphological transition from budding yeast to hyphal form and subsequent biofilm formation is regarded as the crucial factor for drug tolerance and virulence of Candida infections. more...

Organism:

Candida albicans

Type:

Expression profiling by high throughput sequencing

Platform:

GPL19036

2 Samples

Download data: TXT

(Submitter supplied) The Poly(A)-Tail focused RNA-seq, or PAT-seq approach, is an affordable and efficient tool for the measure of 3’UTR dynamics. We show here that PAT-seq returns (i) digital gene expression, (ii) polyadenylation site usage within and between samples, including alternative adenylation, and (iii) the polyadenylation-state the transcriptome. PAT-seq differs from previous 3’ focused RNA-seq methods in that it strictly depends on native 3’ adenylation within total RNA samples and thus removes the need for ribosome depletion and, that the full native poly(A)-tail is included in the sequencing libraries. more...

Organism:

Saccharomyces cerevisiae

Type:

Non-coding RNA profiling by high throughput sequencing

Platform:

GPL18085

13 Samples

Download data: CSV

(Submitter supplied) Multiple levels of interkingdom signaling have been implicated in maintaining the ecological balance between Candida albicans and commensal streptococci to assure a state of oral health. To better understand the molecular mechanisms involved in the initial streptococcal response to the presence of C. albicans that can initiate oral surface colonization and biofilm formation, hypha-forming cells were incubated with Streptococcus gordonii cells for 30 minutes to assess the streptococcal transcriptome response. more...

Organism:

Streptococcus gordonii

Type:

Expression profiling by array

Platform:

GPL20180

2 Samples

Download data: TXT

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

Organism:

Candida albicans

Type:

Other; Expression profiling by array; Genome binding/occupancy profiling by genome tiling array

Platforms:

GPL19932 GPL17892 GPL17420

32 Samples

Download data: GPR

(Submitter supplied) Candida albicans is part of the human gastrointestinal (GI) microbiota. To better understand how C. albicans efficiently establishes GI colonisation, we competitively challenged growth of 572 signature-tagged strains (~10% genome coverage), each conditionally overexpressing a single gene, in the murine gut. We identified CRZ2, a transcription factor whose overexpression and deletion respectively increased and decreased early GI colonisation. more...

Organism:

Candida albicans

Type:

Genome binding/occupancy profiling by genome tiling array

Platform:

GPL17892

2 Samples

Download data: GPR

(Submitter supplied) Candida albicans is part of the human gastrointestinal (GI) microbiota. To better understand how C. albicans efficiently establishes GI colonisation, we competitively challenged growth of 572 signature-tagged strains (~10% genome coverage), each conditionally overexpressing a single gene, in the murine gut. We identified CRZ2, a transcription factor whose overexpression and deletion respectively increased and decreased early GI colonisation. more...

Organism:

Candida albicans

Type:

Expression profiling by array

Platform:

GPL19932

22 Samples

Download data: GPR

(Submitter supplied) Candida albicans is part of the human gastrointestinal (GI) microbiota. To better understand how C. albicans efficiently establishes GI colonisation, we competitively challenged growth of 572 signature-tagged strains (~10% genome coverage), each conditionally overexpressing a single gene, in the murine gut. We identified CRZ2, a transcription factor whose overexpression and deletion respectively increased and decreased early GI colonisation. more...

Organism:

Candida albicans

Type:

Other

Platform:

GPL17420

12 Samples

Download data: GPR

(Submitter supplied) Transcriptional profiling of Candida albicans cells grown under planktonic and biofilm-inducing conditions, comparing SN76 and sfl1Δ/sfl1Δ strains. Goal was to study the effect of SFL1 deletion on the transcriptomic profile of C. albicans planktonic and biofilm cells under acidic conditions, in order to reveal the function of the Sfl1 transcription factor in C. albicans biofilm development.

Organism:

Candida albicans

Type:

Expression profiling by array

Platform:

GPL22275

6 Samples

Download data: TXT

(Submitter supplied) The cyclic AMP-protein kinase A pathway has a central role in the biology of Candida albicans, a prominent fungal pathogen of humans. The two catalytic subunits for cyclic AMP-dependent protein kinase, Tpk1 (orf19.4892) and Tpk2 (orf19.2277), have divergent roles, and most studies indicate a more pronounced role for Tpk2. Here we dissect two Tpk1-responsive properties: adherence and cell wall integrity. more...

Organism:

Candida albicans

Type:

Expression profiling by array

Platform:

GPL9818

16 Samples

Download data: TXT

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

Organism:

Candida parapsilosis

Type:

Expression profiling by array

Platforms:

GPL4574 GPL7693

10 Samples

Download data: GPR

(Submitter supplied) Whole genome microarray was used to compare the transcriptional profile of C. parapsilosis growing in normoxic (21% oxygen) and hypoxic (1% oxygen) conditions.

Organism:

Candida parapsilosis

Type:

Expression profiling by array

Platform:

GPL7693

6 Samples

Download data: GPR

(Submitter supplied) Partial genome microarray and plankton cells

Organism:

Candida parapsilosis

Type:

Expression profiling by array

Platform:

GPL4574

4 Samples

Download data: GPR

(Submitter supplied) The planktonic versus biofilm gene expression arrays were performed in a/alpha cell types. Gene expression arrays were performed on planktonic vs biofilm cells grown in Spider medium at 37C. Normalized data is reported in matrix.

Organism:

Candida albicans

Type:

Expression profiling by array

Platform:

GPL13830

2 Samples

Download data: GPR

(Submitter supplied) The Zap1 ChIP-chips were performed in a/alpha cell types using C-terminally Myc-tagged proteins and Myc antibodies. ChIPs were performed on 48 hour biofilm cells grown in Spider medium. Two biological replicates were performed, and normalized data is reported in matrix.

Organism:

Candida albicans

Type:

Genome binding/occupancy profiling by genome tiling array

Platform:

GPL13696

4 Samples

Download data: GPR

(Submitter supplied) Biofilm formation by microorganisms is a major cause of recurring infections and removal of biofilms has proven to be extremely difficult given their inherent drug resistance. Understanding the biological processes that underlie biofilm formation is thus extremely important and could lead to the development of more effective drug therapies, resulting in better infection outcomes. Using the yeast S. cerevisiae as a biofilm model, overexpression screens identified DIG1, SFL1, HEK2, TOS8, SAN1 and ROF1/YHR177W as regulators of biofilm formation. Subsequent RNA-seq analysis of biofilm and non-biofilm forming strains revealed that all of the overexpression strains, other than DIG1 and TOS8, were adopting a single differential expression profile, although induced to varying degrees. TOS8 adopted a separate profile, while the expression profile of DIG1 reflected the common pattern seen in most of the strains, plus substantial DIG1-specific expression changes. We interpret the existence of the common transcriptional pattern seen across multiple, unrelated overexpression strains as reflecting a real transcriptional state, that the yeast cell can access through regulatory signaling mechanisms, allowing an adaptive morphological change between biofilm-forming and non-biofilm states.

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by high throughput sequencing

Platform:

GPL13821

20 Samples

Download data: TXT