与不同病原菌相结合的凡纳滨对虾血蓝蛋白溶血活性对比分析

张小瑜, 林晓敏, 章跃陵, 路群山, 邹文卉, 伦镜盛

张小瑜, 林晓敏, 章跃陵, 路群山, 邹文卉, 伦镜盛. 与不同病原菌相结合的凡纳滨对虾血蓝蛋白溶血活性对比分析[J]. 水生生物学报, 2013, 37(6): 1079-1084. DOI: 10.7541/2013.146
引用本文: 张小瑜, 林晓敏, 章跃陵, 路群山, 邹文卉, 伦镜盛. 与不同病原菌相结合的凡纳滨对虾血蓝蛋白溶血活性对比分析[J]. 水生生物学报, 2013, 37(6): 1079-1084. DOI: 10.7541/2013.146
ZHANG Xiao-Yu, LIN Xiao-Min, ZHANG Yue-Ling, LU Qun-Shan, Zou Wen-Hui, Lun Jing-Sheng. COMPARATIVE ANALYSIS OF HEMOLYTIC ACTIVITY OF HEMOCYANIN ISOMERS BINDING TO DIFFERENT BACTERIA IN SHRIMP LITOPENAEUS VANNAME[J]. ACTA HYDROBIOLOGICA SINICA, 2013, 37(6): 1079-1084. DOI: 10.7541/2013.146
Citation: ZHANG Xiao-Yu, LIN Xiao-Min, ZHANG Yue-Ling, LU Qun-Shan, Zou Wen-Hui, Lun Jing-Sheng. COMPARATIVE ANALYSIS OF HEMOLYTIC ACTIVITY OF HEMOCYANIN ISOMERS BINDING TO DIFFERENT BACTERIA IN SHRIMP LITOPENAEUS VANNAME[J]. ACTA HYDROBIOLOGICA SINICA, 2013, 37(6): 1079-1084. DOI: 10.7541/2013.146

与不同病原菌相结合的凡纳滨对虾血蓝蛋白溶血活性对比分析

基金项目: 

国家自然科学基金(Nos.30871939 31072237)

教育部新世纪优秀人才支持计划项目(No.NCET-11-0922)

广东省自然科学基金(Nos.10251503101000002 9151064001000001)

广东省科技计划项目(No. 2009B020309006)

广东省高等学校高层次人才项目(2011)资助

COMPARATIVE ANALYSIS OF HEMOLYTIC ACTIVITY OF HEMOCYANIN ISOMERS BINDING TO DIFFERENT BACTERIA IN SHRIMP LITOPENAEUS VANNAME

  • 摘要: 以凡纳滨对虾(Litopenaeus vannamei)为研究对象,采用亲和孵育、PAGE、SDS-PAGE、Western-blotting、溶血活性测定等技术,探索与 6 种不同病原菌相结合的血蓝蛋白溶血活性的差异。结果发现,与副溶血弧菌(Vibrio parahaemolyticus)、溶藻酸弧菌(Vibrio alginolyticus)、河弧菌(Vibrio flurialis)、大肠杆菌(Escherichia coli K12)、乙型链球菌(Beta Streptococcus)和金黄色葡萄球菌(Staphylococcus aureus) 6 种不同细菌相结合的血蓝蛋白(分别命名为 HMC-VP、HMC-VA、HMC-VF、HMC-EC、HMC-BS、HMC-SA)对鸡红细胞表现出不同的溶血活性,其中HMC-VP、HMC-SA溶血活性最高(100.00%),HMC-VA溶血活性最低(39.68%)。在此基础之上,进一步采用糖基氧化和胰蛋白酶消化等策略探索引起该6种血蓝蛋白溶血活性差异的分子基础。结果表明,该6种血蓝蛋白经糖基氧化后,溶血活性大幅度下降抑或丧失,而经胰蛋白酶水解后,溶血活性大幅度升高抑或达到100.00%。由此说明,与不同病原菌相结合的血蓝蛋白免疫学功能(溶血活性)存在显著性差异,造成该差异的原因可能与血蓝蛋白的糖基化修饰、蛋白构象的多样性有关。
    Abstract: In this study, we investigated the diversities of six Litopenaeus vannameihemocyanin isomers binding to different bacteria. The methods of affinity-binding, PAGE, SDS-PAGE, Western-blotting and hemolytic activity assays were used. The results indicated that all the six hemocyanin isomers, namely hemocyanin isomer directly binding to Vibrio parahaemolyticus (HMC-VP), Vibrio alginolyticus (HMC-VA), Vibrio fluvialis (HMC-VF), Escherichia coli K12 (HMC-EC), Beta Streptococcus (HMC-BS) and Staphylococcus aureus (HMC-SA) displayed different hemolytic activities to chicken erythrocyte. Among of these, HMC-VP and HMC-SA showed the highest hemolytic activity and reached almost complete (100.00%), while that of HMC-VA was only 39.96%. To further elucidate the molecular basis underlying hemocyanin isomers functional diversities, the assays of glycosyl-oxidation and trypsin digestion were selected. The results showed that glycosyl-oxidation led to a generally significant decrease in hemolytic activity of all of the hemocyanin isomers, even completely abolished. In contrast, the hemolytic activities of these hemocyanin isomers were highly increased, even reached 100.00% after trypsin digestion. Thus, these results revealed that six hemocyanin isomers possessed different hemolytic activities, which may be related to the diversity of protein glycosylation and conformation.
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出版历程
  • 收稿日期:  2012-08-29
  • 修回日期:  2013-05-31
  • 发布日期:  2013-11-24

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