Identification and Quantification of Major Faba Bean Seed Proteins.

Journal of Agricultural and Food Chemistry
Ahmed O WarsamePaola Tosi

Abstract

Faba bean (Vicia faba L.) holds great importance for human and animal nutrition for its high protein content. However, better understanding of its seed protein composition is required in order to develop cultivars that meet market demands for plant proteins with specific quality attributes. In this study, we screened 35 diverse Vicia faba genotypes by employing the one-dimensional sodium dodecyl sulfate-polyacrylamide gel electrophoresis (1D SDS-PAGE) method, and 35 major protein bands obtained from three genotypes with contrasting seed protein profiles were further analyzed by mass spectrometry (MS). Twenty-five of these protein bands (MW range: ∼ 9-107 kDa) had significant (p ≤ 0.05) matches to polypeptides in protein databases. MS analysis showed that most of the analyzed protein bands contained more than one protein type and, in total, over 100 proteins were identified. These included major seed storage proteins such as legumin, vicilin, and convicilin, as well as other protein classes like lipoxygenase, heat shock proteins, sucrose-binding proteins, albumin, and defensin. Furthermore, seed protein extracts were separated by size-exclusion high-performance liquid chromatography (SE-HPLC), and percentages of the major protei...Continue Reading

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Citations

Nov 2, 2021·Frontiers in Plant Science·Kedar N AdhikariDonal M O'Sullivan

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Methods Mentioned

BETA
electrophoresis
PCR

Software Mentioned

Mascot Daemon
ProteoWizard
Origin
MASCOT engine

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