The major pea seed albumin from Pisum sativurn was carboxymethylated, cleaved with CNBr, and submitted to sequence analysis of the fragments in order to characterize the structural organization of the protein chains. Four major pools of largely homogeneous CNBr fragments were obtainede and likely N-and C-terminal fragments were identified. StruCtural analysis suggested the presence of single positions with microheterogeneities. It also revealed structures with long segments of distinct homology (52% structural identity), indicating the presence of different but related protein chains, or less likely, of repetitive structural elements within a chain. However, preparations appear largely homogeneous in protein class, and contain similar polypeptide chains of about 200 residues in mainly hydrophilic structures, with few methionine and cysteine/half-cystine residues.
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September 01 1985
Structural characteristics of a major seed albumin of Pisum sativum
Zdzislawa Zimniak-Przybylska;
Zdzislawa Zimniak-Przybylska
1Institute of Plant Genetics, Polish Academy of Sciences, Poznan, Poland
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John Hempel;
John Hempel
1Department of Chemistry I, Karolinska Institutet, Stockholm, Sweden
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Janina Przybylska;
Janina Przybylska
1Institute of Plant Genetics, Polish Academy of Sciences, Poznan, Poland
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Hans Jörnvall
Hans Jörnvall
1Department of Chemistry I, Karolinska Institutet, Stockholm, Sweden
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Publisher: Portland Press Ltd
Received:
October 08 1985
Online ISSN: 1573-4935
Print ISSN: 0144-8463
© 1985 The Biochemical Society
1985
Biosci Rep (1985) 5 (9): 799–805.
Article history
Received:
October 08 1985
Citation
Zdzislawa Zimniak-Przybylska, John Hempel, Janina Przybylska, Hans Jörnvall; Structural characteristics of a major seed albumin of Pisum sativum. Biosci Rep 1 September 1985; 5 (9): 799–805. doi: https://doi.org/10.1007/BF01119879
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