Spike Protein and the Various Cell-Surface Carbohydrates: An Interaction Study | Zendy

Nisha Grandhi Jayaprakash | Zendy; Avadhesha Surolia | Zendy

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Spike Protein and the Various Cell-Surface Carbohydrates: An Interaction Study

Author(s) -

Nisha Grandhi Jayaprakash,

Avadhesha Surolia

Publication year - 2021

Publication title -

acs chemical biology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.899

H-Index - 111

eISSN - 1554-8937

pISSN - 1554-8929

DOI - 10.1021/acschembio.1c00691

Subject(s) - in silico , cell , spike (software development) , receptor , microbiology and biotechnology , biology , protein–protein interaction , virus , plasma protein binding , surface protein , protein domain , chemistry , biophysics , biochemistry , virology , gene , management , economics

The SARS-CoV-2 virus has been known to gain entry into the host cell through the spike protein that binds to the host ACE2 cell surface protein. However, the role of the putative sugar-binding sites in the spike protein has remained unclear. We provide a comprehensive in silico outlook into the infection initiation wherein the virus first recognizes the sialosides on the cell via its S1A domain of the spike protein as it surfs over the cell surface. This facilitates the subsequent interaction with the cellular glycosaminoglycans through the S1B domain of the spike protein as it binds to the ACE2 receptor. The unique coadaptation to recognize both the host protein and the cell-surface carbohydrate receptors provides an additional coupling mechanism for efficient viral attachment and infection.

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