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Related Concept Videos

DNA Isolation01:24

DNA Isolation

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DNA isolation protocols can be fast and straightforward or complex and time-consuming depending on the type and quality of DNA required for further processing. For example, plasmid DNA extraction is a bit more complicated than genomic DNA extraction because of the need for an appropriate lysis method to separate plasmid DNA from gDNA during isolation. However, for specific applications, such as long-range DNA sequencing that require a good yield of high- quality DNA samples, we need to follow...
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Related Experiment Video

Updated: Jun 22, 2025

Extraction of High Molecular Weight Genomic DNA from Soils and Sediments
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Extraction of High Molecular Weight Genomic DNA from Soils and Sediments

Published on: November 10, 2009

25.8K

Extraction of Proteins from Soil.

Lu Zheng1, Yi Xiong1,2, Ruonan Wang1,2

  • 1State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, China.

Methods in Molecular Biology (Clifton, N.J.)
|June 28, 2024
PubMed
Summary

Efficient soil protein extraction is crucial for soil metaproteomics. This study presents a low-cost, simple method yielding sufficient protein quantity and purity for mass spectrometry analysis.

Keywords:
Fluorescent assayMetaproteomicsProtein extractionQuantitative mass spectrometry–based proteomicsSoil

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Last Updated: Jun 22, 2025

Extraction of High Molecular Weight Genomic DNA from Soils and Sediments
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Area of Science:

  • Environmental Science
  • Biochemistry
  • Microbiology

Background:

  • Soil metaproteomics offers insights into microbial life but faces challenges.
  • Low protein extraction efficiency due to soil complexity and interfering substances is a major bottleneck.

Purpose of the Study:

  • To develop an efficient, low-cost, and simple soil protein extraction method.
  • To enable robust soil metaproteomics by overcoming extraction limitations.

Main Methods:

  • A novel protein extraction protocol was developed and tested across various soil types.
  • The method focuses on overcoming humic compound interference and maximizing protein recovery.

Main Results:

  • The described method efficiently extracts soil proteins with a yield of approximately 150 μg per 5.0 g of soil.
  • The extracted proteins are of sufficient quantity and purity for subsequent mass spectrometry-based proteomics.

Conclusions:

  • This method provides a practical solution for enhancing soil metaproteomics.
  • It facilitates deeper understanding of soil microbial communities and functions through proteomics.