ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2016, Vol. 47 ›› Issue (3): 549-558.doi: 10.11843/j.issn.0366-6964.2016.03.018

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Screening and Identification of RHDV VP60 P2 Domain Interacting Proteins in Rabbit Liver Cells

LI Teng1,2,JIANG Ping1* ,WANG Fang1,2* ,SONG Yan-hua2,HU Bo2,FAN Zhi-yu2,WEI Hou-jun2,QIU Ru-long2,LIU Xing2   

  1. (1.Key Laboratory of Animal Diseases Diagnostic and Immunology,College of Veterinary Medicine,Nanjing Agricultural University,Nanjing 210095,China;2.Key Laboratory of Veterinary Biological Engineering and Technology of Ministry of Agriculture,National Center for Engineering Research of Veterinary Bio-products,Institute of Veterinary Medicine,Jiangsu Academy of Agricultural Sciences,Nanjing 210014,China)
  • Received:2015-08-21 Online:2016-03-23 Published:2016-03-23

Abstract:

According to reports,VP60 P2 subdomain of RHDV may play an important role in the viral infection. In this study,we used co-immunoprecipitation(Co-IP) with RHDV VP60 P2 expressed in E.coli as bait protein and mass spectrometry analysis to screen the RHDV interacting hepatocellular proteins.Laminin receptor (LamR),as receptors of many other viruses,was identified and verified as potential interacting partner of P2.LamR gene was amplified by RT-PCR from rabbit liver cells.The recombinant LamR protein was expressed in E.coli and used in GST pull-down to verify the interaction of LamR and P2.Here we screened 26 proteins as potential P2 interacting proteins.After verification,the protein LamR could interact with P2 directly.We found that RHDV VP60 P2 interacted with LamR which would contributed to further study of the infectious process and pathogenesis of RHDV.

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