Ontology highlight
ABSTRACT:
PROVIDER: PRJNA347366 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR4383940.fastq.gz | Fastqsanger.gz | |||
| SRR4383940_1.fastq.gz | Fastqsanger.gz | |||
| SRR4383940_2.fastq.gz | Fastqsanger.gz | |||
| SRR4383941_1.fastq.gz | Fastqsanger.gz | |||
| SRR4383941_2.fastq.gz | Fastqsanger.gz |
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Project description:Microcystis aeruginosa cells were treated with phosphorus repletion, depletion and starvation. Isobaric tags for relative and absolute quantitation (iTRAQ) proteomic method was employed to explore to the effects of phosphorus limitation on Microcystis aeruginosa cells at the protein level. This investigation would contribute to the understanding of global cellular responses of Microcystis to phosphorus limitation and provide theoretical basis for deciding whether it is an effective way to control Microcystis blooms by phosphorus reduction.
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Project description:Please Note, if a password is required, please try "a", the generic password for Massive.
These data are in support of the manuscript:
Post-translational Modifications of Endogenous Tau in Wildtype and Human Amyloid Precursor Protein Transgenic Mice
Meaghan Morris*a,b, Giselle M. Knudsen*c, Sumihiro Maedaa,d, Jonathan C. Trinidadc, Alexandra Ianoviciuc, Alma L. Burlingamec, Lennart Muckea,d
aGladstone Institute of Neurological Disease, San Francisco, California 94158, USA
bBiochemistry, Cellular and Molecular Biology Graduate Program, Department of Biological Chemistry, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
cMass Spectrometry Facility, Department of Pharmaceutical Chemistry, University of California, San Francisco, California 94158, USA
dDepartment of Neurology, University of California, San Francisco, California 94158, USA
*These authors contributed equally to this work
2014-07-30 | MSV000078796 | MassIVE
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2016-09-28 | GSE71600 | GEO
Project description:<p>Cyanobacterial blooms result from continued short-term succession of planktonic microbiomes, but these short-term variations are little known. Here we address this question with a field diel study in Lake Tai. By integrating untargeted metabolomics—verified by targeted metabolomics—and metagenomics, we reveal the diel cycle of planktonic microbiome in Lake Tai are highly dynamic and complex. First, metabolite abundance and their molecular mass display clear diel changes along with shift in the taxon abundance and biological functions, following the same environmental factors. Some taxa and biological functions (reactions) are highly correlated with the metabolite abundance, and large compounds appear to be more taxon specific. Second, phytoplanktonic and overall planktonic microbiome showed different temporal variation of abundance, opposite levels of abundance and different molecular sizes, and different inter- and intra-specific diversity dynamics. Last, planktonic microbiomes are highly dynamic and complex in inter- and intraspecific diversity in merely one diel cycle, which point to different temperature preference between species, Microcystis aeruginosa and Anabaena sp. This difference was experimentally confirmed in laboratory. Using a multi-omics approach, our study underscores the importance of diel interaction triad between population abundance, biological functions, and environmental factors in leading to microbiome structural change and blooms.</p>
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Project description:Cyanobacteria produce various cyanotoxins, which can cause severe effects to other organisms. Microcystins, one group of such toxins, primarily produced by species of Microcystis, are strong hepatotoxins and inhibit potently protein phosphatases 1 and 2A. Microcystin is the most studied cyanotoxin, however, others are not investigated. Eutrophication of water bodies promotes the occurrence of toxic algal blooms and since a anthropogenic caused increase in eutrophication events can be observed, it is becoming increasingly important to study the consequences and to increase the knowledge on toxins associated with algal blooms. Recently a new cyanobacteria toxin from a Microcystis strain, CP1020, was described. CP1020 belongs to the class of cyanopeptolins and its toxicity was shown to be comparable to that of microcystin (Gademann et al., 2009). It is a strong protease inhibitor inhibiting trypsin in the picomolar range (IC50 = 670 pM) and effects survival of the freshwater crustacean Thamnocephalus platyurus (LC50) 8.8 μM (Gademann et al., 2009). Nothing is known, however, about the toxicity of CP1020 to fish. Furthermore, no information is available on the toxic modes of action, in addition to the proteinase activity. Consequently our study has the aim to elucidate the modes of action of CP1020 on zebrafish eleuthero-embryos. By using a microarray technique, we will analyse alterations of global gene expression by CP1020 at two different concentrations. Thereby, we hope to elucidate the whole array of affected biological pathways to elucidate the mechanisms by which CP1020 affect fish.
2014-03-31 | GSE50139 | GEO
Project description:Copepod gut content study in the San Francisco Bay and Sacramento-San Joaquin Delta Metagenome
| PRJNA504478 | ENA
Project description:Cyanobacteria produce various cyanotoxins, which can cause severe effects to other organisms. Microcystins, one group of such toxins, primarily produced by species of Microcystis, are strong hepatotoxins and inhibit potently protein phosphatases 1 and 2A. Microcystin is the most studied cyanotoxin, however, others are not investigated. Eutrophication of water bodies promotes the occurrence of toxic algal blooms and since a anthropogenic caused increase in eutrophication events can be observed, it is becoming increasingly important to study the consequences and to increase the knowledge on toxins associated with algal blooms. Recently a new cyanobacteria toxin from a Microcystis strain, CP1020, was described. CP1020 belongs to the class of cyanopeptolins and its toxicity was shown to be comparable to that of microcystin (Gademann et al., 2009). It is a strong protease inhibitor inhibiting trypsin in the picomolar range (IC50 = 670 pM) and effects survival of the freshwater crustacean Thamnocephalus platyurus (LC50) 8.8 M-NM-<M (Gademann et al., 2009). Nothing is known, however, about the toxicity of CP1020 to fish. Furthermore, no information is available on the toxic modes of action, in addition to the proteinase activity. Consequently our study has the aim to elucidate the modes of action of CP1020 on zebrafish eleuthero-embryos. By using a microarray technique, we will analyse alterations of global gene expression by CP1020 at two different concentrations. Thereby, we hope to elucidate the whole array of affected biological pathways to elucidate the mechanisms by which CP1020 affect fish. Gene expression in zebrafish eleuthero-embryos was measured after exposure for 96h to 100 ug/L and 1000 ug/L CP1020 or to the respective controls. A total of 12 arrays (Agilent 4 M-CM-^W 44 K Zebrafish microarray) were used, including four for the solvent control group, four for the 100 M-NM-<g/L and four for the 1000 M-NM-<g/L CP1020 dose group.
2014-03-31 | E-GEOD-50139 | biostudies-arrayexpress