摘要
运用分子模拟软件Hyperchem 7.5,对脱氧雪腐镰刀菌烯醇(DON)及其6种不同连接臂修饰后的DON衍生物的分子构型进行量化计算,通过对其结构参数以及分子轨道的计算比较,获得高特异性、高生物活性的DON半抗原结构,避免了半抗原设计方面的盲目性。同时合成了其中的3种半抗原,通过碳二亚胺(EDC)法与BSA进行偶联免疫Bal b/c小鼠,制备多抗血清,采用间接酶联免疫吸附法(ELISA)和间接竞争ELISA法进行抗体效果的比较。结果表明,分子模拟计算结果与免疫实验的结果相一致,分子模拟对半抗原结构设计具有指导性意义。
Molecular modeling with software Hyperchem 7.5 was used to calculate quantitatively the molecular structures of deoxynivalenol（DON） and its derivatives obtained by modifying DON with six different link arms.Based on the calculation of their structural parameters and molecular orbitals,high specificity and high biological activity of DON hapten structure were obtained.Three of the haptens were then conjugated to BSA using the carbodiimide（EDC） method.Polyclonal antibodies to DON were prepared from Bal b/c mice immunized with DON-BSA conjugates.The immune effects of the three of them were studied by indirect enzyme linked immunosorbent assay（ELISA） and indirect competitive ELISA.Results showed that the data obtained by the immunity test were consistent with those obtained by the molecular modeling,which suggested that the molecular modeling was of instructive significance to hapten design and could avoid the blindness of antigen design.
出处
《分析测试学报》
CAS
CSCD
北大核心
2010年第7期695-700,共6页
Journal of Instrumental Analysis
基金
国家863高技术研究发展计划资助项目(2007AA10Z428)
国家自然科学基金资助项目(20806033
2008017)
"十一五"国家科技支撑计划资助项目(2007BAK36B06)
