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Related Experiment Video

Updated: Jul 18, 2026

Untargeted Liquid Chromatography-Mass Spectrometry-Based Metabolomics Analysis of Wheat Grain
07:10

Untargeted Liquid Chromatography-Mass Spectrometry-Based Metabolomics Analysis of Wheat Grain

Published on: March 13, 2020

Extraction of wheat endosperm proteins for proteome analysis.

William J Hurkman1, Charlene K Tanaka

  • 1U.S. Department of Agriculture, Agricultural Research Service, Western Regional Research Center, 800 Buchanan St., Albany, CA 94710, USA. bhurkman@pw.usda.gov

Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
|December 13, 2006
PubMed
Summary

Analyzing wheat endosperm proteins requires effective extraction methods. Protein fractionation improves proteome coverage by reducing complexity and enriching low-abundance proteins like albumins and globulins.

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Area of Science:

  • Proteomics
  • Plant Biochemistry
  • Wheat Endosperm Analysis

Background:

  • Total protein extracts from wheat endosperm are standard for analyzing abundant gliadins and glutenins.
  • High protein abundance variation in total extracts hinders detection of low-abundance proteins.
  • Protein fractionation is crucial for enhancing proteome coverage and identifying less abundant proteins.

Purpose of the Study:

  • To review and compare popular total endosperm extraction methods for wheat.
  • To highlight the benefits of protein fractionation for improving wheat endosperm proteome analysis.
  • To discuss subproteome fractionation for detailed endosperm protein composition and cellular function insights.

Main Methods:

  • Comparison of total endosperm extraction methods for proteome coverage.

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Last Updated: Jul 18, 2026

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  • Application of sequential extraction to fractionate wheat endosperm proteins based on solubility.
  • Utilizing subcellular fractionation to isolate amyloplasts for biochemical process analysis.

    • Main Results:

    • Total extraction methods face limitations due to the wide dynamic range of protein abundance.
    • Sequential extraction effectively separates abundant gliadins/glutenins from less abundant albumins/globulins.
    • Subproteome fractionation combined with 2-DE and protein identification enhances endosperm protein composition analysis.

    Conclusions:

    • Protein fractionation is essential for comprehensive wheat endosperm proteome analysis.
    • Sequential and subcellular fractionation offer powerful strategies for studying endosperm proteins and functions.
    • Advanced fractionation techniques provide new insights into wheat endosperm cellular processes.