|本期目录/Table of Contents|

[1]何丹,刘媛,李先保,等.微囊藻毒素LR免疫原及包被抗原的合成与鉴定[J].江苏农业科学,2019,47(09):226-230.
 He Dan,et al.Synthesis and identification of immunogens and coating antigens of microcystin LR[J].Jiangsu Agricultural Sciences,2019,47(09):226-230.
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微囊藻毒素LR免疫原及包被抗原的合成与鉴定(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第47卷
期数:
2019年第09期
页码:
226-230
栏目:
贮藏加工与检测分析
出版日期:
2019-05-27

文章信息/Info

Title:
Synthesis and identification of immunogens and coating antigens of microcystin LR
作者:
何丹12 刘媛2 李先保1 龚航12 王丽1 郝佳2 张晓帅2 徐重新2 张存政2 刘贤金2
1.安徽科技学院,安徽滁州 233100; 2.江苏省食品质量安全重点实验室,江苏南京 210014
Author(s):
He Danet al
关键词:
微囊藻毒素LR抗体免疫原包被原鉴定
Keywords:
-
分类号:
X52
DOI:
-
文献标志码:
A
摘要:
微囊藻毒素LR(MC-LR)分子量小于1 000 u,为半抗原,需要与载体蛋白偶联后才能刺激免疫应答用于抗体制备。本研究利用碳二亚胺法将MC-LR分别与钥孔血蓝蛋白(KLH)和牛血清白蛋白(BSA)进行偶联,获得免疫抗原(MC-KLH)和包被抗原(MC-BSA)。采用紫外扫描光谱、SDS聚丙烯酰胺凝胶电泳(SDS-PAGE)、基质辅助激光解吸电离飞行时间质谱(MALDI-TOF MS)等3种方法对2种人工抗原进行鉴定,并对小鼠进行免疫。用间接非竞争酶联免疫吸附测定法(ELISA)和竞争ELISA测定了抗血清效价和敏感度。结果表明,紫外扫描光谱法可观察到2种人工抗原的紫外吸收谱与载体蛋白相比发生改变。通过SDS-PAGE法可以观察到MC-BSA分子量比BSA增大。另外质谱法测定的MC-BSA的相对分子量为76 515.84,计算得到的MC-LR与BSA的偶联比为10 ∶ 1。MC-KLH免疫小鼠后,抗血清效价最高达到1 ∶ 32 000倍,MC-LR对鼠多抗血清的抑制中浓度(I50)为0.53 μg/mL。成功合成了MC-LR的免疫原和包被原为其单克隆抗体的制备奠定了基础。还比较了3种鉴定方法的适用性和优缺点,为其他人工抗原的鉴定方法提供了有益的参考。
Abstract:
-

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2018-01-29
基金项目:国家自然科学基金(编号:31701724);安徽省家禽产业技术体系基金(编号:AHCYTX-10);江苏省社会发展项目 (编号:BE2017706);江苏省农业科技自主创新资金[编号:CX(15)1016]。
作者简介:何丹(1993—),女,河南商丘人,硕士研究生,研究方向为食品加工与安全。E-mail:hehe_88daner@163.com。
通信作者:李先保,博士,教授,主要从事畜产品加工研究。E-mail:Lxb63@163
更新日期/Last Update: 2019-05-05