Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2020 Aug 21;2(4):226–231. doi: 10.1016/j.bsheal.2020.08.004

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© 2020 Chinese Medical Association Publishing House. Published by Elsevier B.V.

Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.

PMC Copyright notice

Fig. 1 — Identification of SARS-CoV-2 S protein expression and SARS-CoV-2 pseudotyped virus.

(A) Construction and identification of S expressing plasmid. SARS-CoV-2 S protein gene was inserted in the pCDNA3.1 vector. (B) Immunofluorescence assay for S protein expression in pcDNA3.1-SARS-CoV-2 S plasmid. The expression was determined using mouse pAb against SARS-CoV-2 S protein and convalescent serum samples from COVID-19 patients. (C) Identification of S protein expression in SARS-CoV-2 pseudotyped virus by immunoblot assay. Bands corresponding to SARS-CoV-2 S and HIV-1 p24 proteins were detected at the same sample line in the gel.