Project description:Investigation of whole genome gene expression level changes in Candida glabrata CBS138 delta-vph2 mutant, compared to the wild-type strain in SC broth (pH5.0 and pH7.4). VPH2 gene encodes a protein that is the assembly factor of a functional V-ATPase. Loss of Vph2p leads to loss of a functional V-ATPase enzyme complex.
Project description:Flo8 is a transcription factor involved in the regulation of multiple cellular processes in Candida glabrata. To characterize its genome-wide DNA-binding profile, chromatin immunoprecipitation followed by sequencing (ChIP-seq) was performed using a strain expressing 3×HA-tagged Flo8, with an untagged Flo8 strain serving as the negative control. Sequencing reads were aligned to the C. glabrata reference genome, and Flo8-enriched regions were identified by comparison with the corresponding input and control samples. The resulting dataset provides a genome-wide map of Flo8-binding sites and facilitates the identification of potential target genes and regulatory pathways associated with metabolism, stress adaptation, and iron homeostasis.
Project description:To delineate the interaction of Candida glabrata with host immune cells, we performed genome-wide transcriptional profiling analysis on THP-1 macrophage-internalized wild-type and chromatin remodeling defective mutant (Cgrsc3-a∆ and Cgrtt109∆) yeasts. Genes implicated in ergosterol biosynthesis, and high-affinity iron uptake and homeostasis were found to be down-regulated in C. glabrata wild-type and mutant cells upon macrophage internalization. Additionally, global gene expression profiles of RPMI-grown and macrophage-ingested Cgrsc3-a∆ and Cgrtt109∆ cells revealed down-regulation of genes involved in mitochondrial respiration under normal growth conditions and induction of genes required for generation of precursors of metabolites and energy upon macrophage internalization. To examine the behavior of Candida glabrata wild-type and chromatin remodeling defective mutants upon internalization by differentiated human monocytic THP-1 cells, we compared the transcript profiles of 10 hour RPMI-grown with those of 10 hour THP-1 macrophage internalized C. glabrata cells. Additionally, early transcriptional response of C. glabrata wild-type cells to macrophage internal milieu was examined post 2 hour THP-1 macrophage infection.
