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Accession number;00A0166652
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| Title;Characterization of Thiamin-binding Proteins from Plant Seeds. |
| Author;
WATANABE KATSUMI
(Kinki Univ., Fac. of Agric.)
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Journal Title;Journal of Japanese Society of Nutrition and Food Science
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Journal Code:F0624A
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ISSN:0287-3516
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VOL.52;NO.6;PAGE.397-400(1999)
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| Figure&Table&Reference;TBL.5, REF.12 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;Thiamin-binding proteins from plant seeds are interesting storage proteins because they have dual functions: retention of thiamin in dormant seeds and provision of a nitrogen source at germination. The thiamin-binding proteins differ in molecular mass, subunit structure, amino acid composition, optimum pH for thiamin-binding activity, and binding affinity for thiamin and thiamin analogs. However, they all specifically bind free thiamin but not thiamin phosphates, which is a characteristic property of thiamin-binding proteins from plant seeds, and have a common mechanism of thiamin binding. This information suggests that the nutritive quality of seeds might be improved by using genetic engineering techniques with the genes producing thiamin-binding proteins. (author abst.) |
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