Plasmodium yoelii
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA322665 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR3584110_1.fastq.gz | Fastqsanger.gz | |||
| SRR3584110_2.fastq.gz | Fastqsanger.gz | |||
| SRR3584120_1.fastq.gz | Fastqsanger.gz | |||
| SRR3584120_2.fastq.gz | Fastqsanger.gz | |||
| SRR3584111_1.fastq.gz | Fastqsanger.gz |
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Project description:Total comparative RNA sequencing of WT vs. ccr4-1 knockout Plasmodium yoelii
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Project description:The purpose of this research is to identify and evaluate the global gene expression of the rodent malaria parasites Plasmodium yoelii, Plasmodium berghei and Plasmodium chabaudi blood-stage parasites and specifically compare the blood stage gene expression profiles of samples derived from previous studies on Plasmodium falciparum, Plasmodium vivax and Plasmodium knowlesi
2016-04-08 | GSE80015 | GEO
Project description:Plasmodium yoelii YM asexual blood stage parasites express multiple members of the py235 gene family, part of the super-family of genes including those coding for Plasmodium vivax reticulocyte binding proteins and Plasmodium falciparum RH proteins. Dr Tony Holder's laboratory (NIMR, London) has been successful in deleting one of the RH family genes (Py01365) by transfection and insertion of the TgDHFR gene, and cloned the resulting parasite in YM background. The gene expression patterns of the mutant parasite line were compared to that of the wild type YM parasite.
2011-04-25 | E-MTAB-636 | biostudies-arrayexpress
Project description:Plasmodium yoelii yoelii Epigenomics
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Project description:Plasmodium yoelii yoelii Genome sequencing
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Project description:Plasmodium yoelii yoelii Transcriptome or Gene expression
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Project description:To determine the role of ALBA4 in mRNA homeostasis in Plasmodium parasites, we performed comparative total RNA-seq between a WT-GFP line and an alba4-null line. We performed these experiments at three points in the life cycle - asexual (schizont), sexual (gametocyte), and oocyst sporozoite stages. We found that ALBA4 has a multi-faceted role in mRNA homeostasis, and is involved in mRNA fate determination. ALBA4 appears to act in a stage-specific manner, affecting different sets of transcripts in each stage. Our data suggests that ALBA4 plays opposing roles - possibly promoting degradation in schizonts, while promoting mRNA protection in gametocytes. In oocyst sporozoites, it appears that ALBA4 has a mixed role, and may be involved in both degradation and protection of mRNAs.
2017-08-25 | GSE81834 | GEO
Project description:Microarray studies using synchronized Plasmodium falciparum parasites have revealed a ‘continuous cascade’ of gene expression. Reports vary regarding the stability in these transcriptional patterns in the presence of external stressors. Using Plasmodium yoelii 17X parasites replicating in vivo, we have examined differential gene expression in parasites isolated from individual mice, from independent infections, during ascending and peak parasitemia and in the presence and absence of host antibody responses. Across experimental conditions, transcription was surprisingly stable. Differential gene expression was greatest when comparing differences due to parasite load and/or host cell availability; however, even these changes were modest. Of genes that were differentially expressed, many are of unknown function. There was little to no differential expression of members of the yir and pyst-a multigene families, although a relatively large number of these were expressed during blood-stage infection regardless of experimental condition. Taken together, these results indicate that 1) P. yoelii gene expression remains stable in the presence of a changing host environment and 2) concurrent expression of a large number of the yir and pyst-a genes may function to divert host immune responses away from invariant protective antigens. 1. P. yoelii 17X gene expression profiles were determined in blood-stage parasites isolated from infected Balb/c mice (male, 8-12 weeks old) as follows: a. Mouse 1 (M1), Mouse 2 (M2), Mouse 3 (M3), Donor (D) mouse – three mice simultaneously infected with P. yoelii 17X iRBCs from a single donor mouse. Parasite RNA was isolated early during infection when parasitemia was ascending as follows: M1 - day 11 at 13.0% parasitemia; M2 - day 10 at 11.1% parasitemia; M3 - day 10 at 18.6% parasitemia; D – day 11 at 18.7% parasitemia. b. Infection #1 (I1), infection #2 (I2), infection #3 (I3), infection #4 (I4) – four groups of mice infected on four separate occasions using P. yoelii 17X iRBCs obtained from four separate donor mice. In each case, P. yoelii 17X RNA was isolated from iRBCs obtained on days 10-11 of infection when parasitemia was ascending and was ~15%. c. Day 10 (D10), Day 14 (D14) – P. yoelii 17X RNA isolated from iRBCs during infection #2 on day 10 (14% parasitemia, 14.4% reticulocytes) and on day 14 of infection #2 (43.5% parasitemia, 57.9% reticulocytes). d. WT and JHD - P. yoelii 17X RNA isolated from iRBCs during infection #4 from immunologically intact, wild-type Balb/c mice and B cell deficient, JHD mice on a Balb/c background (ascending infection, 15% parasitemia). e. QA and RMP - P. yoelii 17X RNA isolated from iRBCs during infection #1 from mice previously immunized with a preparation of membrane proteins isolated from P. yoelii 17X infected reticulocytes (PyRMP) (day 12, 13.3% parasitemia and Quil A immunized (QA) control mice (day 10, 15.6% parasitemia) 2. On each array, gene expression in P. yoelii 17X blood-stage parasites was evaluated relative to a standard comparator of purified P. yoelii 17XL total RNA (pooled RNA from 45 mice, mean parasitemia ~35%). Each sample was analyzed on three replicate arrays, one of which was a standard dye-flip. One exception was the infection #3 sample which was analyzed on only on two arrays. On each array, oligonucleotides were spotted in duplicate. 3. Through the use of the standard reference RNA, the following 15 pairwise comparisons across samples were made: (M1 vs M2); (M2 vs M3); (M1 vs M3); (D vs M1); (D vs M2); (D vs M3); (I1 vs I2); (I1 vs I3); (I1 vs I4); (I2 vs I3); (I2 vs I4); (I3 vs I4); (D10 vs D14); (WT vs JHD); (QA vs RMP)
2011-11-01 | E-GEOD-31274 | biostudies-arrayexpress
Project description:Comparative analysis of the rodent malaria genome Plasmodium yoelii yoelii 17X
| PRJEB5706 | ENA