Warning: This is a preliminary report that has not been peer-reviewed. It should not be regarded as conclusive, guide clinical practice/health-related behavior, or be reported in news media as established information.

Candidate screening of host cell membrane proteins involved in SARS-CoV-2 entry (Preliminary Report)

COVID-19 represents a real threat to the global population, and understanding the biological features of the causative virus (SARS-CoV-2) is imperative to aid in mitigating this threat. Analyses of proteins such as primary receptors and co-receptors (co-factors) that are involved in SARS-CoV-2 entry into host cells will provide important clues ...
to help control the virus. Here, we identified host cell membrane protein candidates that were present in proximity to the attachment sites of SARS-CoV-2 spike proteins through the use of proximity labeling and proteomics analysis. The identified proteins represent candidate key factors that may be required for viral entry. Our results indicated that a number of membrane proteins, including DPP4, Cadherin-17, and CD133, were identified to co-localize with cell membrane-bound SARS-CoV-2 spike proteins in Caco-2 cells that were used to expand the SARS-CoV-2 virion. We anticipate that the information regarding these protein candidates will be utilized for the future development of vaccines and antiviral agents against SARS-CoV-2.
Date: Sep. 09, 2020
Status: Preliminary Report
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