GEO DataSets

(Submitter supplied) The Plasmodium sexual gametocyte stages are the only transmissible form of the malaria parasite and are thus responsible for the continued transmission of the disease. Gametocytes undergo extensive functional and morphological changes from commitment to maturity, directed by an equally extensive control program. Several interconnected mechanisms governing sexual commitment have been described. However, the processes that drive the subsequent differentiation and development of the gametocyte remain largely unexplored. more...

Organism:

Plasmodium falciparum NF54

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL29510

17 Samples

Download data: BIGWIG, TXT

(Submitter supplied) Global transcriptomic profiling of JIB-04 treated and untreated control early gametocytes to determine the downstream effects of Jumonji histone demethylase inhibition on development

Organism:

Plasmodium falciparum; Plasmodium falciparum NF54

Type:

Expression profiling by array

Platform:

GPL15130

4 Samples

Download data: TXT

(Submitter supplied) Transmission of the malaria parasite Plasmodium falciparum from the human to the mosquito is mediated by the intraerythrocytic gametocytes, which, once taken up during a blood meal, become activated to initiate sexual reproduction. Because gametocytes are the only parasite stages able to establish an infection in the mosquito, they are crucial for spreading the tropical disease. During gametocyte maturation, different repertoires of genes are switched on and off in a well-coordinated sequence, pointing to regulatory mechanisms of gene expression. more...

Organism:

Plasmodium falciparum

Type:

Expression profiling by array

Platform:

GPL15130

12 Samples

Download data: TXT

(Submitter supplied) Transmission of the malaria parasite Plasmodium falciparum from the human to the mosquito is initiated by sexual precursor cells, the gametocytes. Gametocytes are formed in response to stress signals and following up-take by a blood-feeding Anopheles mosquito initiate sexual reproduction. Gametocytes need to fine tune their gene expression in order to develop inside the mosquito to continue life-cycle progression. more...

Organism:

Plasmodium falciparum

Type:

Expression profiling by array

Platform:

GPL15130

12 Samples

Download data: TXT

(Submitter supplied) Little is known about the role of the three Jumonji C (JmjC) enzymes in Plasmodium falciparum (Pf). Here, we show that JIB-04 and other established inhibitors of mammalian JmjC histone demethylases kill asexual blood stage parasites and are even more potent at blocking gametocyte development and gamete formation. In late stage parasites, JIB-04 increased levels of trimethylated lysine residues on histones, suggesting the inhibition of P. more...

Organism:

Plasmodium falciparum

Type:

Expression profiling by high throughput sequencing

Platform:

GPL21298

16 Samples

Download data: TXT

(Submitter supplied) For malaria transmission, the parasite must undergo sexual differentiation into mature gametocytes. However, the molecular basis for this critical transition in the parasites life cycle is unknown. Six previously uncharacterized genes, Pfg14.744, Pfg14.745, Pfg14.748, Pfg14.763, Pfg14.752 and Pfg6.6 that are members of a 36 gene Plasmodium falciparum-specific subtelomeric superfamily were found to be expressed in parasites that are committed to sexual development as suggested by co-expression of Pfs16 and Pfg27. more...

Organism:

Plasmodium falciparum

Type:

Expression profiling by array

Platform:

GPL1858

8 Samples

Download data: GPR

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

Organism:

Plasmodium falciparum

Type:

Expression profiling by array

Platform:

GPL15130

44 Samples

Download data: TXT

(Submitter supplied) Differentiation from asexual blood stages to sexual gametocytes is required for transmission of malaria parasites from the human to the mosquito host. Preventing gametocyte commitment and development would block parasite transmission, but the underlying molecular mechanisms behind these processes remain poorly understood. Here, we report that the ApiAP2 transcription factor, PfAP2-G2 (PF3D7_1408200) plays a critical role in the maturation of Plasmodium falciparum gametocytes. more...

Organism:

Plasmodium falciparum

Type:

Expression profiling by array

Platform:

GPL15130

28 Samples

Download data: TXT

(Submitter supplied) Differentiation from asexual blood stages to sexual gametocytes is required for transmission of malaria parasites from the human to the mosquito host. Preventing gametocyte commitment and development would block parasite transmission, but the underlying molecular mechanisms behind these processes remain poorly understood. Here, we report that the ApiAP2 transcription factor, PfAP2-G2 (PF3D7_1408200) plays a critical role in the maturation of Plasmodium falciparum gametocytes. more...

Organism:

Plasmodium falciparum

Type:

Expression profiling by array

Platform:

GPL15130

16 Samples

Download data: TXT

(Submitter supplied) Differentiation from asexual blood stages to sexual gametocytes is required for transmission of malaria parasites from the human host to mosquitos, where sexual fertilization occurs to complete the lifecycle. Although preventing gametocyte development would block parasite transmission, the molecular mechanisms underlying sexual commitment and gametocyte maturation are still relatively unknown. Previous studies identified an ApiAP2 protein, AP2-G2, which plays a critical role in gametocyte maturation in rodent malaria parasite Plasmodium berghei by acting as the repressor of asexual stage genes in gametocytes. more...

Organism:

Plasmodium falciparum

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL21298

10 Samples

Download data: BIGWIG

(Submitter supplied) Epigenetic mechanisms have been poorly understood in Plasmodium falciparum, the causative agent of malaria. To elucidate stage specific epigenetic regulations in P. falciparum, we performed genome-wide mapping of various histone modifications, nucleosomes and RNA Polymerase II. Our comprehensive analysis suggest that transcription initiation and elongation are distinct in Plasmodium. In this study, by analyzing histone modifications, nucleosome occupancy and RNA Polymerase II (Pol II) at three different IEC developmental stages of Plasmodium; ring, trophozoite and schizont, we tried to unravel the epigenetic mechanism associated with gene regulation.

Organism:

Plasmodium falciparum

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL19422

39 Samples

Download data: BED

(Submitter supplied) Identify differentially expressed genes across the 48h intraerythrocytic development cycle of gametocyte non-producers of P. falcuparum

Organism:

Plasmodium falciparum

Type:

Expression profiling by array

Platform:

GPL17880

32 Samples

Download data: TXT

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

Organism:

Plasmodium yoelii yoelii

Type:

Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL29103 GPL29104

10 Samples

Download data: BW

(Submitter supplied) Male and female gametocytes are sexual precursor cells essential for transmission of malaria parasite in the mosquitoes. Differentiation of gametocytes to fertile gametes (gametogenesis) relies on the gender-specific transcriptome. However, how the parasites establish distinct repertoire of gene transcription in the male and female gametocytes remains largely unknown. Here, we report that an Apetala2 (AP2) family transcription factor (TF) AP2-O3 operates as a transcription repressor regulating female gametocyte transcriptome. more...

Organism:

Plasmodium yoelii yoelii

Type:

Expression profiling by high throughput sequencing

Platform:

GPL29104

6 Samples

Download data: TXT

(Submitter supplied) Male and female gametocytes are sexual precursor cells essential for transmission of malaria parasite in the mosquitoes. Differentiation of gametocytes to fertile gametes (gametogenesis) relies on the gender-specific transcriptome. However, how the parasites establish distinct repertoire of gene transcription in the male and female gametocytes remains largely unknown. Here, we report that an Apetala2 (AP2) family transcription factor (TF) AP2-O3 operates as a transcription repressor regulating female gametocyte transcriptome. more...

Organism:

Plasmodium yoelii yoelii

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL29103

4 Samples

Download data: BW

(Submitter supplied) Gametocytogenesis, the process by which malaria parasites produce sexual forms that can infect mosquitoes, is essential for the transmission of malaria. A transcriptional switch of the pfap2-g gene triggers sexual commitment, but how the complex multi-step process is precisely programed remains largely unknown. Here, by systematic functional screening of a panel of ApiAP2 transcription factors, we identify six new apiAP2 members associated with gametocytogenesis in Plasmodium falciparum. more...

Organism:

Plasmodium falciparum

Type:

Genome variation profiling by high throughput sequencing

Platform:

GPL26835

4 Samples

Download data: XLSX

(Submitter supplied) Gametocytogenesis, the process by which malaria parasites produce sexual forms that can infect mosquitoes, is essential for the transmission of malaria. A transcriptional switch of the pfap2-g gene triggers sexual commitment, but how the complex multi-step process is precisely programed remains largely unknown. Here, by systematic functional screening of a panel of ApiAP2 transcription factors, we identify six new apiAP2 members associated with gametocytogenesis in Plasmodium falciparum. more...

Organism:

Plasmodium falciparum

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL26835

12 Samples

Download data: BW

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

Organism:

Plasmodium falciparum

Type:

Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL26835

117 Samples

Download data: BW

(Submitter supplied) Gametocytogenesis, the process by which malaria parasites produce sexual forms that can infect mosquitoes, is essential for the transmission of malaria. A transcriptional switch of the pfap2-g gene triggers sexual commitment, but how the complex multi-step process is precisely programed remains largely unknown. Here, by systematic functional screening of a panel of ApiAP2 transcription factors, we identify six new apiAP2 members associated with gametocytogenesis in Plasmodium falciparum. more...

Organism:

Plasmodium falciparum

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL26835

18 Samples

Download data: BED, BW

(Submitter supplied) Gametocytogenesis, the process by which malaria parasites produce sexual forms that can infect mosquitoes, is essential for the transmission of malaria. A transcriptional switch of the pfap2-g gene triggers sexual commitment, but how the complex multi-step process is precisely programed remains largely unknown. Here, by systematic functional screening of a panel of ApiAP2 transcription factors, we identify six new apiAP2 members associated with gametocytogenesis in Plasmodium falciparum. more...

Organism:

Plasmodium falciparum

Type:

Expression profiling by high throughput sequencing

Platform:

GPL26835

83 Samples

Download data: XLSX