Description
E. coli MG1655 containing the plasmids pBRA SP-Tox-Act1WT or SP-Tox-Act1C151A were cultured in LB and resuspended in AB supplemented with 0.2% L-arabinose to induce Tox-Act1 expression. Cell pellets were resuspended and the lipid-containing phase was extracted. Lipid extracts were analyzed using ultra-high-performance liquid chromatography (UHPLC Nexera, Shimadzu) coupled with an ESI-Q-TOF mass. MS and MS/MS data acquisition was performed using Analyst 1.7.1 software (Sciex). Mass spectrometry data was inspected using PeakView 2.0 software (Sciex), and lipid molecular species were manually identified with the help of an in-house manufactured Excel-based macro. Lipid species were quantified using MultiQuant software (Sciex), where the precursor ions areas were normalized by the internal standards for each class.
[doi:10.25345/C5N29PK9R]
[dataset license: CC0 1.0 Universal (CC0 1.0)]
Keywords: lipidomics ; polymorphic toxin ; DatasetType:Other (lipidomics)
Contact
Principal Investigators:
(in alphabetical order)
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Ethel Bayer-Santos, University of Texas, USA
Gianlucca G Nicastro, National Library of Medicine, USA
Robson Francisco de Souza, University of Sao Paulo, Brazil
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rfsouza
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Conditions:
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| Identification Results |
Proteins (Human, Remapped):
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Proteins (Reported):
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Originally identified proteins that were automatically
remapped by MassIVE to proteins in the
SwissProt
human reference database.
"N/A" means no results of this type were submitted.
Number of distinct protein accessions reported across all analyses (original submission and
reanalyses) associated with this dataset.
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Number of distinct peptide sequences (including modified variants or peptidoforms) reported
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"N/A" means no results of this type were submitted.
Total number of peptide-spectrum matches (i.e. spectrum identifications) reported across all
analyses (original submission and reanalyses) associated with this dataset.
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Number of distinct proteins quantified across all analyses (original submission and reanalyses)
associated with this dataset.
Distinct protein accessions are counted across all files submitted in the "Statistical Analysis
of Quantified Analytes" category having a "Protein" column in this dataset.
"N/A" means no results of this type were submitted.
Number of distinct proteins found to be differentially abundant in at least one comparison
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A protein is differentially abundant if its change in abundance across conditions is found
to be statistically significant with an adjusted p-value <= 0.05 and lists no issues associated
with statistical tests for differential abundance.
Distinct protein accessions are counted across all files submitted in the "Statistical Analysis
of Quantified Analytes" category having a "Protein" column in this dataset.
"N/A" means no results of this type were submitted.
This dataset may not contain all raw spectra data as originally deposited in PRIDE.
It has been imported to MassIVE for reanalysis purposes, so its spectra data here may
consist solely of processed peak lists suitable for reanalysis with most software.