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MetabolomicsMetabolome variability for two Mediterranean sponge species of the genus Haliclona: specificity, time, and space

INTRODUCTION: The study of natural variation of metabolites brings valuable information on the physiological state of the organisms as well as their phenotypic traits. In marine organisms, metabolome variability has mostly been addressed through targeted studies on metabolites of...

2021-10-27 | MTBLS638 | MetaboLights
MetabolomicsSample Preparation for Integrated Metabolome and Exposome-Wide Association Studies (MWAS/ExWAS)

Exposome- and metabolome-wide association studies rely on advanced instrumentation, typically anchored in liquid chromatography high-resolution mass spectrometry (LC-HRMS) to investigate exposure-effect associations. Sample preparation for biological fluids is a delicate matter since it is essent...

2026-07-20 | MTBLS15100 | MetaboLights
MetabolomicsCorrelation-based Deconvolution (CorrDec) to generate high-quality MS2 spectra from data-independent acquisition in multi-sample studies (Urine assay)

Data-independent acquisition mass spectrometry (DIA-MS) is essential for information-rich spectral annotations in untargeted metabolomics. However, the acquired MS2 spectra are highly complex, posing significant annotation challenges. We have developed a correlation-based deconvolution (CorrDec) ...

2020-07-13 | MTBLS816 | MetaboLights
MetabolomicsCorrelation-based Deconvolution (CorrDec) to generate high quality MS2 spectra from data independent acquisition in multi-sample studies (Chemical standards assay)

Data-independent acquisition mass spectrometry (DIA-MS) is essential for information-rich spectral annotations in untargeted metabolomics. However, the acquired MS2 spectra are highly complex, posing significant annotation challenges. We have developed a correlation-based deconvolution (CorrDec) ...

2020-07-13 | MTBLS787 | MetaboLights
TranscriptomicsRNA-seq reveals that Air1 and Air2 control TRAMP substrate specificity for nuclear RNA surveillance
The Saccharomyces cerevisiae TRAMP4 and TRAMP5 complexes, which consist of the poly(A) polymerase Trf4 or Trf5, respectively, the zinc knuckle proteins Air1 or Air2, and the RNA helicase Mtr4, play a critical role in nuclear RNA surveillance. Although it is known to enhance the nuclease activity of ...
ORGANISM(S): Saccharomyces cerevisiae 
2012-11-14 | E-GEOD-42231 | biostudies-arrayexpress
GenomicsAsymmetry of STAT action in driving IL-27 and IL-6 transcriptional outputs and cytokine specificity
IL-6 and IL-27 have antagonistic and overlapping functions, signal through a shared receptor subunit and employ the same downstream STAT proteins. To evaluate the degree of specificity and redundancy for these cytokines, we quantified global transcriptomic changes induced by the two cytokines and de...
ORGANISM(S): Mus musculus 
2015-05-27 | E-GEOD-65621 | biostudies-arrayexpress
TranscriptomicsResponsiveness of genes to manipulation of transcription factors in ES cells is associated with chromatin structure and tissue specificity
Background: In addition to determining static states of gene expression (high vs. low), it is important to characterize their dynamic status. For example, genes with H3K27me3 chromatin marks are not only suppressed but also poised for activation. However, the responsiveness of genes to perturbations...
ORGANISM(S): Mus musculus 
2011-02-14 | E-GEOD-22151 | biostudies-arrayexpress
TranscriptomicsCas9 target DNA specificity in vitro and in vivo (S. cerevisiae)
Cas9, a CRISPR RNA-guided nuclease, has been rapidly adopted as a tool for biochemical and genetic manipulation of DNA. Although Cas9 offers remarkable specificity and versatility for genome manipulation, mis-targeted events occur. To extend the understanding of Cas9 target::homology requirements, w...
ORGANISM(S): synthetic construct 
2016-06-10 | E-GEOD-79667 | biostudies-arrayexpress
TranscriptomicsResponsiveness of genes to manipulation of transcription factors in ES cells is associated with histone modifications and tissue specificity (1 of 2)
BACKGROUND: In addition to determining static states of gene expression (high vs. low), it is important to characterize their dynamic status. For example, genes with H3K27me3 chromatin marks are not only suppressed but also poised for activation. However, the responsiveness of genes to perturbations...
ORGANISM(S): Mus musculus 
2011-02-11 | E-GEOD-19806 | biostudies-arrayexpress
TranscriptomicsResponsiveness of genes to manipulation of transcription factors in ES cells is associated with histone modifications and tissue specificity (2 of 2)
BACKGROUND: In addition to determining static states of gene expression (high vs. low), it is important to characterize their dynamic status. For example, genes with H3K27me3 chromatin marks are not only suppressed but also poised for activation. However, the responsiveness of genes to perturbations...
ORGANISM(S): Mus musculus 
2011-02-11 | E-GEOD-19814 | biostudies-arrayexpress
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