Summary of Study ST001338

This data is available at the NIH Common Fund's National Metabolomics Data Repository (NMDR) website, the Metabolomics Workbench,, where it has been assigned Project ID PR000913. The data can be accessed directly via it's Project DOI: 10.21228/M8P67T This work is supported by NIH grant, U2C- DK119886.


This study contains a large results data set and is not available in the mwTab file. It is only available for download via FTP as data file(s) here.

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Study IDST001338
Study TitleGlobal profiling for cecal contents
Study SummaryThe aryl hydrocarbon receptor (AHR) is a ligand-activated transcription factor that responds to a variety of structurally diverse exogenous and endogenous small molecules. Gut microbiota utilizing tryptophan and indole metabolism as a reservoir, has been demonstrated to provide an abundant source of AHR ligands. So differential analysis was performed to find the potential candidates of AHR activator in cecal contents between conventional and germ-free mice with the help of untargeted global profiling.
Pennsylvania State University
Last NameDONG
Address314 Life Sciences Building, University Park, PA 16802
Submit Date2020-03-26
Raw Data AvailableYes
Raw Data File Type(s)raw(Thermo)
Analysis Type DetailLC-MS
Release Date2020-10-13
Release Version1

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Sample Preparation:

Sampleprep ID:SP001420
Sampleprep Summary:Each mixture was homogenized with 1 mm zirconium beads using a BeadBlasterTM 24 (Benchmark Scientific, Edison, NJ, USA) homogenizer. All samples were homogenized according to the program parameters: 6500 - 1×30 - 005 (×3). After vortexing, samples were sonicated for 20 min in an ice water bath, prior to centrifugation at 20,000 × g for 20 min at 4 ℃. The supernatants were collected, dried in a Savant SpeedVac (Thermo Scientific, Waltham, MA, USA), and reconstituted in 100 μL of 3% methanol (v/v) containing 1 µM chlorpropamide (internal standard).
Sampleprep Protocol Filename:MS_protocol_for_global_profiling.pdf