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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Ryu, Hyun Su Choi, Ung-kyu Kwon, Oh-shin Kim, Hyun Tae Lee, Su Jin |
| Description | Author Affiliation: Kim HT ( College of Natural Sciences, Kyungpook National University, Daegu, Republic of Korea.) |
| Abstract | During germination and early growth of the seedling, storage proteins are degraded by proteases. Currently, limited information is available on the degradation of storage proteins in the soybean during germination. In this study, a combined two-dimensional gel electrophoresis and mass spectrometry approach was utilized to determine the proteome profile of soybean seeds ( Glycine max L.; Eunhakong). Comparative analysis showed that the temporal profiles of protein expression are dramatically changed during the seed germination and seedling growth. More than 80% of the proteins identified were subunits of glycinin and β-conglycinin, two major storage proteins. Most subunits of these proteins were degraded almost completely at a different rate by 120 h, and the degradation products were accumulated or degraded further. Interestingly, the acidic subunits of glycinin were rapidly degraded, but no obvious change in the basic chains. Of the five acidic subunits, the degradation of G2 subunit was not apparently affected by at least 96 h but the levels decreased rapidly after that, while no newly appearing intermediate was detected upon the degradation of G4 subunit. On the other hand, the degradation of β-conglycinin during storage protein mobilization appeared to be similar to that of glycinin but at a faster rate. Both α and α' subunits of β-conglycinin largely disappeared by 96 h, while the β subunits degraded at the slowest rate. These results suggest that mobilization of subunits of the storage proteins is differentially regulated for seed germination and seedling growth. The present proteomic analysis will facilitate future studies addressing the complex biochemical events taking place during soybean seed germination. |
| ISSN | 00063002 |
| Journal | Biochimica et Biophysica Acta (BBA) - Reviews on Cancer |
| Issue Number | 9 |
| Volume Number | 1814 |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2011-09-01 |
| Publisher Place | Netherlands |
| Access Restriction | Open |
| Subject Keyword | Germination Physiology Seedling Growth & Development Metabolism Soybean Proteins Soybeans Amino Acid Sequence Antigens, Plant Chemistry Globulins Molecular Sequence Data Protein Subunits Proteomics Seed Storage Proteins Research Support, Non-U.S. Gov't Biochemistry |
| Content Type | Text |
| Resource Type | Article |
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