Expression and evaluation of IgE-binding capacity of recombinant Pacific mackerel parvalbumin
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- Hamada Yuki
- Department of Food Science and Technology, Tokyo University of Marine Science and Technology Faculty of Fisheries, Nagasaki University
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- Tanaka Hiroyuki
- Department of Food Science and Technology, Tokyo University of Marine Science and Technology
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- Sato Ayako
- Department of Food Science and Technology, Tokyo University of Marine Science and Technology
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- Ishizaki Shoichiro
- Department of Food Science and Technology, Tokyo University of Marine Science and Technology
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- Nagashima Yuji
- Department of Food Science and Technology, Tokyo University of Marine Science and Technology
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- Shiomi Kazuo
- Department of Food Science and Technology, Tokyo University of Marine Science and Technology
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Background: Parvalbumin is the major and cross-reactive allergen in fish. Sufficient amounts of IgE-reactive recombinant fish parvalbumin are needed for diagnosis and immunotherapy of fish allergy.<br> Methods: A DNA fragment corresponding to parvalbumin of the Pacific mackerel Scomber japonicus was synthesized and cloned into the expression vector pGEX-6p-3 to produce glutathione S-transferase (GST)-fusion parvalbumin in Escherichia coli. The GST-free recombinant parvalbumin was purified using the RediPack GST Purification Module (Amersham Pharmacia Biotech, Buckinghamshire, UK). Parvalbumins of seven species of fish (Japanese eel, horse mackerel, red sea bream, Pacific mackerel, skipjack, bigeye tuna and Japanese flounder) were purified by gel filtration and reverse-phase HPLC. The IgE-binding capacity was examined by ELISA and antigenic cross-reactivity by inhibition ELISA.<br> Results: The GST-free recombinant Pacific mackerel parvalbumin was obtained in an electrophoretically pure state. Data from ELISA and inhibition ELISA revealed that the recombinant parvalbumin contains most of the IgE-binding epitopes of the natural counterpart. In addition, the recombinant parvalbumin inhibited the IgE reactivities of the pooled patient serum to parvalbumins purified from six species of fish in almost the same magnitude as the natural Pacific mackerel parvalbumin.<br> Conclusions: Because the recombinant Pacific mackerel parvalbumin bearing the IgE-binding capacity of the natural counterpart is cross-reactive with various fish parvalbumins, it can be a useful tool for the diagnosis and immunotherapy of fish allergy.<br>
収録刊行物
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- Allergology International
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Allergology International 53 (3), 271-278, 2004
一般社団法人日本アレルギー学会
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詳細情報 詳細情報について
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- CRID
- 1390282679611142784
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- NII論文ID
- 130004476821
- 10014175966
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- NII書誌ID
- AA11091750
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- COI
- 1:CAS:528:DC%2BD2cXpsFSqsLg%3D
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- ISSN
- 14401592
- 13238930
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- 本文言語コード
- en
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- データソース種別
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- JaLC
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