Utilization of a Detergent-Based Method for Direct Microbial Cellular Lysis/Proteome Extraction from Soil Samples for Metaproteomics Studies

  • Karuna Chourey
  • Robert L. HettichEmail author
Part of the Methods in Molecular Biology book series (MIMB, volume 1841)


Soil metaproteomics is a rapidly developing and rather complex field aimed at understanding the functionalities of soil microbial communities. One of the main challenges of such an approach is the availability of a robust and efficient protocol to extract proteins from soil microbes inhabiting this complex matrix. The wide range of soil types and the innumerable variations in soil properties confound this experimental goal. Here we present a detergent based, heat-assisted cellular lysis method coupled with trichloroacetic acid (TCA) precipitation of soil microbial proteins that has been developed in our lab and found to be reasonably robust and unbiased in extracting microbial proteins from a broad range of soils for downstream mass spectrometric characterizations of microbial metabolic activities in natural ecosystems.

Key words

Soil proteomics Metaproteomics Protein extraction Biological mass spectrometry Soil protein extraction Cell lysis 



Karuna Chourey and Robert L. Hettich acknowledge funding support from US Department of Energy, Genome Sciences Program. Oak Ridge National Laboratory is managed by UT-Battelle, LLC, for the US Department of Energy.


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Chemical Sciences DivisionOak Ridge National LabOak RidgeUSA

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