Summary of Study ST002270

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 PR001452. The data can be accessed directly via it's Project DOI: 10.21228/M81Q5B 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 IDST002270
Study TitleXenopus tropicalis glycolysis and PPP inhibition
Study SummaryStage 41 tadpoles were injected with 4 nmol of the glycolysis inhibitor, 2-deoxyglucose (2DG), or a tracer control to evaluate consequences of inhibition on metabolites 24 hours after treatment began. Similarly, tadpoles were incubated in DMSO control or 1 of 2 G6PD inhibitors (Dehydroepiandrosterone and g6pdi), to similarly assess the consequences of inhibiting the pentose phosphate pathway. We find that inhibition of glucose metabolism with 2DG results in a decrease in downstream glycolytic intermediates, confirming a reduction in activity of this pathway. G6PD inhibition was not as clear as changes were less consistent across treatments and downstream metabolites did not behave in a coordinated way, though impacts on other metabolic processes by these inhibitors may be fruitful for exploring how they perturb metabolism in the tadpoles.
University of Washington
Last NamePatel
First NameJeet
Address1705 NE Pacific St., HSB J-Wing, J405, Seattle, Washington, 98195, USA
Submit Date2022-08-03
Raw Data AvailableYes
Raw Data File Type(s)mzML
Analysis Type DetailLC-MS
Release Date2022-10-25
Release Version1
Jeet Patel Jeet Patel application/zip

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Sample Preparation:

Sampleprep ID:SP002362
Sampleprep Summary:Aqueous metabolites for targeted LC-MS analysis were extracted using a protein precipitation method similar to the one described elsewhere (Mathon et al., 2019; Meador et al., 2020). Samples were first homogenized in 200 µL purified deionized water at 4 ˚C, and then 800 µL of methanol containing 6C13-glucose and 2C13-glutamate (reference internal standards) was added. Afterwards samples were vortexed, stored for 30 minutes at -20 ˚C, sonicated in an ice bath for 10 minutes, centrifuged for 15 min at 14,000 rpm and 4 ˚C, and then 600 µL of supernatant was collected from each sample. Lastly, recovered supernatants were dried on a SpeedVac and reconstituted in 1.0 mL of LC-matching solvent containing 2C13-tyrosine and 3C13-lactate (reference internal standards).
Sampleprep Protocol Filename:JPatel_LC-MS_Methods.pdf