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Title: Characterization of Protein Fractions from Chickpea (Cicer arietinum L.) and Oat (Avena sativa L.) Seeds Using Proteomic Techniques
Authors: Yu-Wei Chang
Inteaz Alli
Yasuo Konishi
Edmund Ziomek
Contributors: 國立臺灣海洋大學:食品科學系
Keywords: Mascot
Date: 2011-11
Issue Date: 2016-12-28T02:33:52Z
Publisher: Food Research International
Abstract: Abstract: Albumin, globulin and glutelin fractions were prepared from chickpea and oat seeds using sequential extractions. Molecular characteristics of individual protein fractions were investigated using sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) in combination with proteomic techniques. SDS-PAGE results revealed that chickpea albumin and globulin fractions (C-Ab and C-Gb) showed protein bands with molecular weights (MWs) related to subunits of legumin (11S globulin) and pea vicilin (7S globulin); oat protein fractions (O-Ab, O-Gb and O-Gt) showed most protein bands with MWs related to subunits of oat 12S globulin (avenalin). With proteomic analysis, eighteen tryptic peptides from chickpea globulin fraction showed sequence homology that corresponded to chickpea legumin α- and β-subunit (NCBI accession number: gi|6273402; theoretical mass 56,216 Da) while sixteen tryptic peptides from chickpea albumin fraction (C-Ab) were identified as chickpea provicilin precursor (NCBI accession number: gi|82173888; theoretical mass 51,390 Da); fifteen tryptic peptides from oat protein fractions were identified with origin from oat 12S seed storage globulin 1 (NCBI accession number: gi|134918; theoretical mass 58,508 Da). The identified tryptic peptide, ALIVPQNFAIAAK, was commonly found in chickpea glutelin fraction (C-Gt), rice glutelin fraction (R-Gt), and oat albumin, globulin and glutelin fractions (O-Ab, O-Gb and O-Gt).
Relation: 44(9)
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/39688
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