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MetabolomicsMatrix Effect on Chemical Isotope Labeling and Its Implication in Metabolomic Sample Preparation for Quantitative Metabolomics
Matrix effect from various constituents in biological samples can reduce the accuracy of quantitative metabolomics. Differential chemical isotope labeling liquid chromatography mass spectrometry (CIL LC-MS) can overcome the matrix effect on MS detection based on measuring the intensity ratios of met...
2015-07-01 | MTBLS194 | MetaboLights
MetabolomicsUntargeted extraction of metabolites 13C labeling profiles from time course labeling switch experiment
Dynamic isotope labeling data provide crucial information about the operation of metabolic pathways, and are commonly generated via liquid chromatography mass spectrometry (LC-MS). Metabolome-wide analysis is challenging as it requires grouping of metabolite features over different samples. We devel...
2015-10-19 | MTBLS228 | MetaboLights
MetabolomicsUntargeted extraction of metabolites 13C labeling profiles from time course labeling switch experiment
Dynamic isotope labeling data provide crucial information about the operation of metabolic pathways, and are commonly generated via liquid chromatography mass spectrometry (LC-MS). Metabolome-wide analysis is challenging as it requires grouping of metabolite features over different samples. We devel...
2015-10-19 | MTBLS229 | MetaboLights
MetabolomicsIn silico derivatization and CCS value prediction improve interoperable semi-untargeted stable-isotope labeling analysis

Chemical derivatization can improve the detectability of analytically challenging compounds, but untargeted feature identification and annotation for chemically derivatized samples are limited by the availability of reference spectra. With the workflow presented in this manuscript, challenges ass...

2026-10-20 | MTBLS14808 | MetaboLights
MetabolomicsStable Isotope–Assisted Plant Metabolomics: Combination of Global and Tracer-Based Labeling for Enhanced Untargeted Profiling and Compound Annotation
Untargeted approaches and thus biological interpretation of metabolomics results are still hampered by the reliable assignment of the global metabolome as well as classification and (putative) identification of metabolites. In this work we present an liquid chromatography-mass spectrometry (LC-MS)-b...
2020-02-09 | MTBLS1217 | MetaboLights
MetabolomicsTwo-Channel Chemical Isotope Labeling Metabolomics Analysis of Human Fecal Samples

Global metabolomics study of the amine and carboxyl submetabolomes of 16 human fecal samples.

2026-09-23 | MTBLS13531 | MetaboLights
MetabolomicsgeoRge: A Computational Tool To Detect the Presence of Stable Isotope Labeling in LC/MS-Based Untargeted Metabolomics
Studying the flow of chemical moieties through the complex set of metabolic reactions that happen in the cell is essential to understanding the alterations in homeostasis that occur in disease. Recently, LC/MS-based untargeted metabolomics and isotopically labeled metabolites have been used to facil...
2015-09-15 | MTBLS213 | MetaboLights
ProteomicsComparing SILAC- and stable isotope dimethyl-labeling approaches for quantitative proteomics.
Comparison of SILAC and reductive dimethyl labeling; also applied both methods to affinity enrichment experiments with and without fractionation.
ORGANISM(S): Homo Sapiens (ncbitaxon:9606) 
2018-08-29 | MSV000082868 | MassIVE
GenomicsSelective chemical labeling reveals intragenic enrichment of 5-hydroxymethylcytosine in mouse cerebellum
5-Methylcytosine (5-mC) is an important DNA modification found in eukaryotes that impacts gene regulation and disease pathogenesis. Recently, 5-hydroxymethylcytosine (5-hmC), another form of DNA modification, has been identified in substantial amounts in certain mammalian cell types; however, its ro...
ORGANISM(S): Mus musculus 
2010-12-12 | E-GEOD-25398 | biostudies-arrayexpress
TranscriptomicsIn vivo proximity labeling and sequencing (IPL-seq) for SNRPN70 in 293T-Rex
This proof-of-principle experiment was designed to demonstrate the feasibility of proximity labeling for RNAM-bM-^@M-^Sprotein interactions IPL-seq on 293T-Rex expressing MSA-SNRPN70 (sample) or NFH-SNRPN70 (control)
ORGANISM(S): Homo sapiens 
2014-10-24 | E-GEOD-55370 | biostudies-arrayexpress
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