利用质谱技术鉴定马铃薯醇溶性致敏蛋白

doi:10.16036/j.issn.1000-2650.2020.01.004

四川农业大学学报 ›› 2020, Vol. 38 ›› Issue (01): 25-28.doi: 10.16036/j.issn.1000-2650.2020.01.004

利用质谱技术鉴定马铃薯醇溶性致敏蛋白

李佩华¹, 彭正松¹, 赵欢^2,*, 周晓利¹, 林巧¹, 邓迪²

1.西昌学院农业科学学院,四川西昌 615013;
2.西华师范大学生命科学学院,四川南充 637002

收稿日期:2019-12-03 出版日期:2020-02-28 发布日期:2021-02-02
作者简介:李佩华,副研究员。^*责任作者：赵欢,博士,讲师,研究方向：马铃薯育种,E-mail：zhaohuan_2010@163.com。
基金资助:
攀西地区马铃薯主食化专用新品种选育与推广（2016NYZ0032-4）; 国家现代农业产业技术体系四川薯类创新团队（[2019]59号）; “四川省主要粮食作物农业气象指标研究”

Identification of the Possible Proteins Responsible for Celiac Disease in Potato by Mass Spectrum

LI Peihua¹, PENG Zhengsong¹, ZHAO Huan^2,*, ZHOU Xiaoli¹, LIN Qiao¹, DENG Di²

1. College of Agronomy,Xichang University,Xichang 615013,Sichuan,China;
2. College of Life Science,China West Normal University,Nanchong 637002,Sichuan,China

Received:2019-12-03 Online:2020-02-28 Published:2021-02-02

摘要/Abstract

摘要： 【目的】为马铃薯品质育种提供理论依据。【方法】利用小麦麸质蛋白提取液提取马铃薯储藏蛋白,然后利用十二烷基苯磺酸钠聚丙烯酰胺凝胶电泳分离可能的致敏蛋白,切胶回收目的蛋白,真空干燥,酶切后质谱检测分离的蛋白,并与小麦中已知的致敏性多肽进行比对。【结果】共检测到199种马铃薯蛋白,比对后未发现其含有可导致乳糜泻的多肽。【结论】马铃薯不含有类似麸质蛋白的多肽。

关键词: 马铃薯蛋白, 致敏蛋白, 质谱, 食品安全

Abstract: 【Objective】 This research would provide basic knowledge for potato quality breeding. 【Method】In this experiment, wheat gluten extracting solution was used to extract storage proteins in potato, and then these proteins were separated by sodium dodecyl sulfate polyacrylamide gel elecrophoresis (SDS-PAGE). Desired bands were cut from the PAGE gel, before they were cut into pieces. Gel pieces were placed under vacuum centrifugation until completely dried, and then digested by trypsin. Mass measurements were performed on a LTQ mass spectrometer (MS). The acquired MS spectra were searched against the known wheat allergenic CD (celiac disease) epitopes. 【Results】 In total, 199 proteins were identified by MS, and none of them shown similarity to the known wheat allergenic CD peptides. 【Conclusion】 Potato does not contain any CD epitope.

Key words: potato protein, allergenic protein, mass spectrometry, food safety

中图分类号:

S512.1

李佩华, 彭正松, 赵欢, 周晓利, 林巧, 邓迪. 利用质谱技术鉴定马铃薯醇溶性致敏蛋白[J]. 四川农业大学学报, 2020, 38(01): 25-28.

LI Peihua, PENG Zhengsong, ZHAO Huan, ZHOU Xiaoli, LIN Qiao, DENG Di. Identification of the Possible Proteins Responsible for Celiac Disease in Potato by Mass Spectrum[J]. Journal of Sichuan Agricultural University, 2020, 38(01): 25-28.

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利用质谱技术鉴定马铃薯醇溶性致敏蛋白

Identification of the Possible Proteins Responsible for Celiac Disease in Potato by Mass Spectrum

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