An Effective Platform for Exploring Rotavirus Receptors by Bacterial Surface Display System.

Abstract:

:Rotavirus (RV) is a major foodborne pathogen. For RV prevention and control, it is a key to uncover the interaction mechanism between virus and its receptors. However, it is hard to specially purify the viral receptors, including histo-blood group antigens (HBGAs). Previously, the protruding domain protein (P protein) of human norovirus (genotype II.4) was displayed on the surface of Escherichia coli, and it specifically recognized and captured the viral ligands. In order to further verify the feasibility of the system, P protein was replaced by VP8* of RV (G9P[8]) in this study. In the system, VP8* could be correctly released by thrombin treatment with antigenicity retaining, which was confirmed by Western blot and Enzyme-Linked Immunosorbent Assays. Type A HBGAs from porcine gastric mucin (PGM) were recognized and captured by this system. From saliva mixture, the captured viral receptor bound with displayed VP8* was confirmed positive with monoclonal antibody against type A HBGAs. It indicated that the target ligands could be easily separated from the complex matrix. These results demonstrate that the bacterial surface display system will be an effective platform to explore viral receptors/ligands from cell lines or food matrix.

journal_name

Virol Sin

journal_title

Virologica Sinica

authors

Liu D,Geng H,Zhang Z,Xing Y,Yang D,Liu Z,Wang D

doi

10.1007/s12250-019-00174-5

subject

Has Abstract

pub_date

2020-02-01 00:00:00

pages

103-109

issue

1

eissn

1674-0769

issn

1995-820X

pii

10.1007/s12250-019-00174-5

journal_volume

35

pub_type

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