ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2015, Vol. 46 ›› Issue (3): 503-508.doi: 10.11843/j.issn.0366-6964.2015.03.022

Previous Articles    

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

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.

CLC Number: