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Stable Isotope Probing Informatics Infrastructure for High Throughput Analyses


EMSL Project ID
50441

Abstract

The ability to identify, quantify and trace organic compounds through a soil ecosystem is essential for characterization of the molecular mechanisms that regulate biomolecule interactions with soil minerals. By tracking the incorporation of heavy isotopes into biomolecules, stable isotope probing (SIP) can offer a non-invasive technique for elucidating key molecules through space and time. Thorough mapping of these mechanisms requires measurements of multiple types of biomolecules (e.g., proteins, metabolites, lipids, etc.) utilizing a variety of analytical tools. EMSL houses the majority of the instrumentation needed to enable SIP of these molecules but currently lacks the informatics tools needed to reliably and quantitatively unlock this information from suitable mass spectra in a statistically relevant manner. We are proposing to create the informatics infrastructure necessary to build an automated, stable, statically robust and integrated stable isotope label based experimental platform for facile integration of a variety of analytical methods. These algorithms represent a critical piece of infrastructure upon which we will build EMSL's integrated SIP research campaigns. Leveraging the work from FY18 which focused on the development of an R based code for the analysis of proteomics data, we will validate the existing code with protein data, and then apply similar approaches to targeted and untargeted mass spectrometry based metabolomics data.

Project Details

Start Date
2018-10-11
End Date
2020-12-31
Status
Closed

Team

Principal Investigator

James Moran
Institution
Michigan State University

Co-Investigator(s)

Lee Ann McCue
Institution
Environmental Molecular Sciences Laboratory

Team Members

Shant Mahserejian
Institution
Pacific Northwest National Laboratory

Sneha Couvillion
Institution
Pacific Northwest National Laboratory

Lisa Bramer
Institution
Pacific Northwest National Laboratory

Vladislav Petyuk
Institution
Pacific Northwest National Laboratory

Mary Lipton
Institution
Environmental Molecular Sciences Laboratory