A simple, economical and reproducible protein extraction protocol for proteomics studies of soybean roots

Sample preparation is a critical step in two-dimensional gel electrophoresis (2-DE) of plant tissues. Here we describe a phenol/SDS procedure that, although greatly simplified, produced well-resolved and reproducible 2-DE profiles of protein extracts from soybean [Glycine max (L.) Merril] roots. Ext...

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Main Authors: Elisete Pains Rodrigues, Adalgisa Ribeiro Torres, Jesiane Stefânia da Silva Batista, Luciano Huergo, Mariangela Hungria
Format: Article
Language:English
Published: Sociedade Brasileira de Genética 2012-01-01
Series:Genetics and Molecular Biology
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000200016
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author Elisete Pains Rodrigues
Adalgisa Ribeiro Torres
Jesiane Stefânia da Silva Batista
Luciano Huergo
Mariangela Hungria
author_facet Elisete Pains Rodrigues
Adalgisa Ribeiro Torres
Jesiane Stefânia da Silva Batista
Luciano Huergo
Mariangela Hungria
author_sort Elisete Pains Rodrigues
collection DOAJ
description Sample preparation is a critical step in two-dimensional gel electrophoresis (2-DE) of plant tissues. Here we describe a phenol/SDS procedure that, although greatly simplified, produced well-resolved and reproducible 2-DE profiles of protein extracts from soybean [Glycine max (L.) Merril] roots. Extractions were made in three replicates using both the original and simplified procedure. To evaluate the quality of the extracted proteins, ten spots were randomly selected and identified by mass spectrometry (MS). The 2-DE gels were equally well resolved, with no streaks or smears, and no significant differences were observed in protein yield, reproducibility, resolution or number of spots. Mass spectra of the ten selected spots were compared with database entries and allowed high-quality identification of proteins. The simplified protocol described here presents considerable savings of time and reagents without compromising the quality of 2-DE protein profiles and compatibility with MS analysis, and may facilitate the progress of proteomics studies of legume-rhizobia interactions.
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spelling doaj.art-3b5a5a465acf4423850e53522bb2a1802022-12-21T19:42:02ZengSociedade Brasileira de GenéticaGenetics and Molecular Biology1415-47571678-46852012-01-0135134835210.1590/S1415-47572012000200016A simple, economical and reproducible protein extraction protocol for proteomics studies of soybean rootsElisete Pains RodriguesAdalgisa Ribeiro TorresJesiane Stefânia da Silva BatistaLuciano HuergoMariangela HungriaSample preparation is a critical step in two-dimensional gel electrophoresis (2-DE) of plant tissues. Here we describe a phenol/SDS procedure that, although greatly simplified, produced well-resolved and reproducible 2-DE profiles of protein extracts from soybean [Glycine max (L.) Merril] roots. Extractions were made in three replicates using both the original and simplified procedure. To evaluate the quality of the extracted proteins, ten spots were randomly selected and identified by mass spectrometry (MS). The 2-DE gels were equally well resolved, with no streaks or smears, and no significant differences were observed in protein yield, reproducibility, resolution or number of spots. Mass spectra of the ten selected spots were compared with database entries and allowed high-quality identification of proteins. The simplified protocol described here presents considerable savings of time and reagents without compromising the quality of 2-DE protein profiles and compatibility with MS analysis, and may facilitate the progress of proteomics studies of legume-rhizobia interactions.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-475720120002000162-DEprotein extractionproteomicssoybean rootssymbiosis
spellingShingle Elisete Pains Rodrigues
Adalgisa Ribeiro Torres
Jesiane Stefânia da Silva Batista
Luciano Huergo
Mariangela Hungria
A simple, economical and reproducible protein extraction protocol for proteomics studies of soybean roots
Genetics and Molecular Biology
2-DE
protein extraction
proteomics
soybean roots
symbiosis
title A simple, economical and reproducible protein extraction protocol for proteomics studies of soybean roots
title_full A simple, economical and reproducible protein extraction protocol for proteomics studies of soybean roots
title_fullStr A simple, economical and reproducible protein extraction protocol for proteomics studies of soybean roots
title_full_unstemmed A simple, economical and reproducible protein extraction protocol for proteomics studies of soybean roots
title_short A simple, economical and reproducible protein extraction protocol for proteomics studies of soybean roots
title_sort simple economical and reproducible protein extraction protocol for proteomics studies of soybean roots
topic 2-DE
protein extraction
proteomics
soybean roots
symbiosis
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000200016
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