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Transgenic Plasmodium falciparum blood stage parasites F12/GDV1-GFP-DD: control (-Shield-1;F12/GDV1-GFP-DDOFF) vs GDV1-overexpressing (+Shield-1;F12/GDV1-GFP-DDON) parasites

ABSTRACT: Transcriptional profiling of transgenic P. falciparum blood stage parasites expressing an ectopic copy of GDV1-GFP-DD (F12/GDV1-GFP-DD). The DD (FKBP destabilisation domain) allows for the conditional expression of fusion proteins: DD fusion proteins are rapidly degraded or stably expressed in absence or presence of the stabilising ligand Shield-1, respectively (Banaszynski LA, Chen LC, Maynard-Smith LA, Ooi AG, Wandless TJ. A rapid, reversible, and tunable method to regulate protein function in living cells using synthetic small molecules.Cell. 2006 Sep 8;126(5):995-1004). The goal of this experiment was to identify genes differentially expressed in response to induced GDV1 overexpression.

OTHER RELATED OMICS DATASETS IN: PRJNA377430PRJNA377421PRJNA377429PRJNA374799

ORGANISM(S): Plasmodium falciparum Plasmodium falciparum 3D7

PROVIDER: GSE95548 | GEO | 2017/03/02

SECONDARY ACCESSION(S): PRJNA377429

REPOSITORIES: GEO

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Transgenic Plasmodium falciparum blood stage parasites 3D7/GDV1-GFP-DD: control (-Shield-1;3D7/GDV1-GFP-DDOFF) vs GDV1-overexpressing (+Shield-1;3D7/GDV1-GFP-DDON) parasites

Project description:Transcriptional profiling of transgenic P. falciparum blood stage parasites expressing an ectopic copy of GDV1-GFP-DD (3D7/GDV1-GFP-DD). The DD (FKBP destabilisation domain) allows for the conditional expression of fusion proteins: DD fusion proteins are rapidly degraded or stably expressed in absence or presence of the stabilising ligand Shield-1, respectively (Banaszynski LA, Chen LC, Maynard-Smith LA, Ooi AG, Wandless TJ. A rapid, reversible, and tunable method to regulate protein function in living cells using synthetic small molecules.Cell. 2006 Sep 8;126(5):995-1004). The goal of this experiment was to identify genes differentially expressed in response to induced GDV1 overexpression.

2017-03-02 | GSE95547 | GEO

Transgenic Plasmodium falciparum parasites line 3D7/DDGFP-PfAP2-HC: transcriptional differences between 3D7/DDGFP-PfAP2-HC control parasites (cultured in presence of Shield-1; ON) vs PfAP2-HC-depleted parasites (cultured in absence of Shield-1; OFF)

Project description:Transcriptional profiling of transgenic P. falciparum asexual blood stage parasites of the transgenic strain 3D7/DDGFP-PfAP2-HC at five time points during intra-erythrocytic parasite development. The DD (FKBP destabilisation domain) allows for the conditional expression of fusion proteins: DD fusion proteins are rapidly degraded or stably expressed in absence or presence of the stabilising ligand Shield-1, respectively (Banaszynski LA, Chen LC, Maynard-Smith LA, Ooi AG, Wandless TJ. A rapid, reversible, and tunable method to regulate protein function in living cells using synthetic small molecules.Cell. 2006 Sep 8;126(5):995-1004). The goal of this experiment was to identify genes differentially expressed in DDGFP-PfAP2-HC-expressing compared to DDGFP-PfAP2-HC-depleted parasites during the intra-erythtrocytic cell cycle.

2020-10-06 | GSE159061 | GEO

Plasmodium falciparum blood stage parasites: control vs PfTRF-depleted parasites

Project description:Transcriptional profiling of transgenic Plasmodium falciparum blood stage parasites expressing the telomere repeat-binding factor PfTRF as a C-terminal GFP-DD fusion (3D7/TRFGFP-ON). The DD (FKBP destabilisation domain) allows for the conditional depletion of fusion proteins in absence of the stabilising ligand Shield-1 (Banaszynski LA, Chen LC, Maynard-Smith LA, Ooi AG, Wandless TJ. A rapid, reversible, and tunable method to regulate protein function in living cells using synthetic small molecules.Cell. 2006 Sep 8;126(5):995-1004). The goal of this experiment was to identify genes differentially expressed in response to PfTRF depletion.

2016-07-14 | GSE84342 | GEO

PfMAP2 is essential for male gametogenesis in the malaria parasite Plasmodium falciparum

Project description:Transcriptional profiling of transgenic P. falciparum stage V gametocytes of the strain NF54/MAP-2GFPDD before and after activation for gametogenesis. The DD (FKBP destabilisation domain) allows for the conditional expression of fusion proteins: DD fusion proteins are rapidly degraded or stably expressed in absence or presence of the stabilising ligand Shield-1, respectively (Banaszynski LA, Chen LC, Maynard-Smith LA, Ooi AG, Wandless TJ. A rapid, reversible, and tunable method to regulate protein function in living cells using synthetic small molecules.Cell. 2006 Sep 8;126(5):995-1004). The goal of this experiment was to identify genes differentially expressed in PFMAP-2GFPDD-expressing compared to PfAMP-2GFPDD-depleted stage V gametocytes.

2020-03-28 | GSE147643 | GEO

Transgenic Plasmodium falciparum blood stage parasites F12/GDV1-GFP-DD: control (-Shield-1 F12/GDV1-GFP-DDOFF) vs GDV1-overexpressing (+Shield-1 F12/GDV1-GFP-DDON) parasites

Project description:Transgenic Plasmodium falciparum blood stage parasites F12/GDV1-GFP-DD: control (-Shield-1 F12/GDV1-GFP-DDOFF) vs GDV1-overexpressing (+Shield-1 F12/GDV1-GFP-DDON) parasites

| PRJNA377429 | ENA

GDV1 triggers sexual conversion and differentiation in malaria parasites by antagonizing HP1-dependent gene silencing

Project description:Malaria is caused by Plasmodium parasites that proliferate through iterative cycles of intra-erythrocytic replication. During each cycle a small number of parasites differentiate into gametocytes, the only forms able to infect the mosquito vector and transmit malaria. Sexual commitment is triggered by activation of AP2-G, the master transcriptional regulator of gametocytogenesis. Heterochromatin protein 1 (HP1)-dependent silencing of ap2-g prevents sexual conversion and secures proliferation. Here, we identify gametocyte development 1 (GDV1) as the first upstream activator of the sexual differentiation pathway in P. falciparum. Induction of GDV1 expression is sufficient to activate AP2-G expression and sexual differentiation. We found that GDV1 targets heterochromatin and triggers HP1 eviction preferentially at ap2-g and other gametocyte-specific genes. We further demonstrate that GDV1-dependent activation of ap2-g is controlled via a gdv1 antisense RNA. In summary, we identify GDV1 as an unprecedented cell fate decision factor that induces sexual differentiation by antagonizing HP1-dependent gene silencing.

2018-05-04 | GSE94901 | GEO

Plasmodium falciparum 3D7

Project description:Transgenic Plasmodium falciparum blood stage parasites 3D7/GDV1-GFP-DD: control (-Shield-1 3D7/GDV1-GFP-DDOFF) vs GDV1-overexpressing (+Shield-1 3D7/GDV1-GFP-DDON) parasites

| PRJNA377430 | ENA

RNA-sequencing of parasites overexpressing conditionally stabilized BFD1 to identify genes regulated by BFD1

Project description:WT (ME49∆KU80), ∆BFD1, or ∆BFD1/DD-BFD1-Ty parasites were treated with the stabilizing ligand Shield-1 (all three) or vehicle alone (WT and ∆BFD1/DD-BFD1-Ty) to identify genes differentially regulated by overexpression of BFD1.

2020-01-16 | GSE139537 | GEO

Transcriptional response to conditional over-expression of GDV1 in Plasmodium falciparum 3D7 wild type and F12 mutant parasites

Project description:Transcriptional response to conditional over-expression of GDV1 in Plasmodium falciparum 3D7 wild type and F12 mutant parasites

| PRJNA377421 | ENA

A Chemical Proteomic Strategy Reveals Inhibitors of Lipoate Salvage in Bacteria and Parasites

Project description:The development of safe anti-infectives requires strategies focusing on pathways solely present in pathogens. Following this principle, we here developed inhibitors of lipoic acid (LA) salvage which is crucial for the survival of LA auxotroph bacteria and parasites but non-essential in human cells. An LA based probe was effectively transferred on substrate proteins via lipoate protein ligase (LPL) and hence, their binding sites determined by mass-spectrometry.

2023-06-21 | PXD040359 | Pride

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