Evaluation of allergenic potential for rice seed protein components utilizing a rice proteome database and an allergen database in combination with IgE-binding of recombinant proteins

Evaluation of allergenic potential for rice seed protein components utilizing a rice proteome database and an allergen database in combination with IgE-binding of recombinant proteins
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利用水稻蛋白质组数据库和过敏原数据库结合重组蛋白的 IgE 结合评估水稻种子蛋白成分的致敏潜力

DOI:
10.1080/09168451.2015.1116927
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发表时间:
2016
期刊:
Bioscience, Biotechnology, and Biochemistry
影响因子:
--
通讯作者:
Tsukasa Matsuda
Tsukasa Matsuda
中科院分区:
--
文献类型:
--
作者:
Kana Hirano;Shingo Hino;Kenzi Oshima;Daita Nadano;Atsuo Urisu;Fumio Takaiwa;Tsukasa Matsuda

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在131个水稻胚乳蛋白质中,大多数蛋白质与数据库中已知的过敏原序列相似性很低或几乎没有,而9个蛋白质与已知的过敏原序列相似性很高。这两个蛋白的序列与榛树花粉过敏原Hsp 70相似(Cora 10)和大麦α-淀粉酶(Hor v16)的同源性较低(28-58%),而其它蛋白与柠檬胚样蛋白(Cit 11)、玉米醇溶蛋白(corn zein(Zea m 50 K)、小麦几丁质酶样木聚糖酶抑制剂(Tri a XI)和俄罗斯蓟的激酶样花粉过敏原(Sal k 1)。免疫斑点杂交分析表明,这些水稻种子同源物的重组蛋白的IgE结合阳性,但不一定相似依赖,从一些过敏患者。这些结果表明,利用蛋白质组和序列数据库结合IgE结合分析是有效的筛选和评价水稻种子蛋白组分的致敏性。
Among 131 rice endosperm proteins previously identified by MS-based proteomics, most of the proteins showed low or almost no sequence similarity to known allergens in databases, whereas nine proteins did it significantly. The sequence of two proteins showed high overall identity with Hsp70-like hazel tree pollen allergen (Cor a 10) and barley α-amylase (Hor v 16), respectively, whereas the others showed low identity (28–58%) with lemon germin-like protein (Cit l 1), corn zein (Zea m 50 K), wheat chitinase-like xylanase inhibitor (Tri a XI), and kinase-like pollen allergen of Russian thistle (Sal k 1). Immuno-dot blot analysis showed that recombinant proteins for these rice seed homologs were positive in the IgE-binding, but not necessarily similarity dependent, from some allergic patients. These results suggest that utilization of proteome and sequence databases in combination with IgE-binding analysis was effective to screen and evaluate allergenic potential of rice seed protein components.
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