畜牧兽医学报 ›› 2015, Vol. 46 ›› Issue (3): 503-508.doi: 10.11843/j.issn.0366-6964.2015.03.022

• 研究简报 • 上一篇    

应用双向电泳分析2株不同毒力的副猪嗜血杆菌蛋白质表达的差异

王晨燕1,2#,王隆柏1#,车勇良1,吴学敏1,陈如敬1,邵良平 2,周伦江1*   

  1. (1.福建省农业科学院畜牧兽医研究所,福建省畜禽疫病防治工程技术研究中心,福州 350013;2.福建农林大学动物科学学院,福州 350002)
  • 收稿日期:2014-06-11 出版日期:2015-03-23 发布日期:2015-03-23
  • 通讯作者: 周伦江(1973-),男,博士,研究员,主要从事动物病毒学与分子生物学研究,E-mail:lunjiang@163.com
  • 作者简介:王晨燕(1988-),女,硕士生,主要从事临床兽医学研究,E-mail:329177624@qq.com;王隆柏(1977-),男,福建宁化人,副研究员,主要从事分子生物学与免疫学研究,E-mail:wanglongbai@163.com。二人共为第一作者
  • 基金资助:

    2013年福建省农业科学院创新团队项目;福建省现代农业生猪产业技术体系建设(2014-2016)

Differential Analysis of Expressed Proteins between Different Virulent Haemophilus parasuis by Two-dimensional Polyacrylamide Gel Electrophoresis

WANG Chen-yan1,2# ,WANG Long-bai1# ,CHE Yong-liang1,WU Xue-min1,CHEN Ru-jing1,SHAO Liang-ping2,ZHOU Lun-jiang1*   

  1. (1.Fujian Animal Disease Control Technology Development Center,Institute of Animal Husbandry and Veterinary Medicine,Fujian Academy of Agricultural Sciences,Fuzhou 350013,China;2.College of Animal Science,Fujian Agricultural and Forestry University,Fuzhou 350002,China)
  • Received:2014-06-11 Online:2015-03-23 Published:2015-03-23

摘要:

副猪嗜血杆菌是猪常见细菌性疾病的病原之一,临床表现为多发性纤维素性浆膜炎、关节炎和脑膜炎。运用蛋白质组学技术对不同毒力的副猪嗜血杆菌(Haemophilus parasuis)进行比较研究,明确差异蛋白质信息,对揭示其致病机制具有重要意义。本试验通过应用建立的双向电泳方法对选取同为4型的2株不同H.parasuis临床分离株(菌株A和菌株B)进行蛋白质组学研究,二者相互比较,共鉴定出10个差异表达蛋白质,其中菌株A有3个蛋白质表达量为增加,分别是谷氨酰tRNA合成酶、半胱氨酸合成酶和假设蛋白;菌株B有7个蛋白质表达量为增加,包括Yae T蛋白(omp85)、CTP合酶、天冬氨酰tRNA合成酶(有3个)、尿苷激酶、SecB蛋白。差异蛋白质的功能主要集中在蛋白质合成、氨基酸合成和嘧啶合成。研究结果进一步丰富了H.parasuis的毒力因子和致病机制的相关信息,也为今后开展H.parasuis免疫蛋白质组学研究奠定了基础。

Abstract:

 Haemophilus parasuis was one of the common bacterial disease pathogen of pigs,clinically characterized by fibrinous polyserositis,fibrinous arthritis and meningitis.It had importance significance that the expressed proteins of different virulent H.parasuis strains were profiled by the comparative proteomic approach to reveal the mechanism of pathogenisis.We chose 2 different virulent stains,stain A and stain B,of H.parasuis serotype 4 for comparative analysis,10 differently expressed proteins were analyzed and identified by 2-DE and MALDI-TOF-MS.In all proteins differentially expressed,3 protein spots were upregulated in strain A,they were glutamyl-tRNA synthetase,cysteine synthase and hypothetical protein,and 7 protein spots were upregulated in strain B included YaeT protein(omp85),CTP synthetase,aspartyl-tRNA synthetase(3 spots),uridylate kinase,protein-export chaperone SecB and so on.The function of expressed proteins mainly consisted of protein biosynthesis,amino-acid biosynthesis and pyrimidine biosynthesis.These results further enrich the information of virulence factors and pathogenic mechanisms of the H.parasuis strains,and also lay a foundation for study of immune proteomic.

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