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Published in: Virology Journal 1/2010

Open Access 01-12-2010 | Research

Identification of NCAM that interacts with the PHE-CoV spike protein

Authors: Wei Gao, Wenqi He, Kui Zhao, Huijun Lu, Wenzhi Ren, Chongtao Du, Keyan Chen, Yungang Lan, Deguang Song, Feng Gao

Published in: Virology Journal | Issue 1/2010

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Abstract

Background

The spike proteins of coronaviruses associate with cellular molecules to mediate infection of their target cells. The characterization of cellular proteins required for virus infection is essential for understanding viral life cycles and may provide cellular targets for antiviral therapies.

Results

We identified Neural Cell Adhesion Molecule (NCAM) as a novel interacting partner of the PHE-CoV S protein. A T7 phage display cDNA library from N2a cells was constructed, and the library was screened with the soluble PHE-CoV S glycoproteins. We used a coimmunoprecipitation assay to show that only the NCAM was a binding partner of spike protein. We found that a soluble form of anti-NCAM antibody blocked association of the PHE-CoV with N2a cells. Furthermore, double-stranded siRNA targeted against NCAM inhibited PHE-CoV infection.

Conclusions

A novel interaction was identified between NCAM and spike protein and this association is critical during PHE-CoV infection.
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Metadata
Title
Identification of NCAM that interacts with the PHE-CoV spike protein
Authors
Wei Gao
Wenqi He
Kui Zhao
Huijun Lu
Wenzhi Ren
Chongtao Du
Keyan Chen
Yungang Lan
Deguang Song
Feng Gao
Publication date
01-12-2010
Publisher
BioMed Central
Published in
Virology Journal / Issue 1/2010
Electronic ISSN: 1743-422X
DOI
https://doi.org/10.1186/1743-422X-7-254

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