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. 2018 Jul 24;61(1):30–35. doi: 10.1159/000490566

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Copyright © 2018 by S. Karger AG, Basel

This article is made available via the PMC Open Access Subset for unrestricted re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the COVID-19 pandemic or until permissions are revoked in writing. Upon expiration of these permissions, PMC is granted a perpetual license to make this article available via PMC and Europe PMC, consistent with existing copyright protections.

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Fig. 2 — Mean fold change in firefly luciferase levels under the control of IFN-β promoter in IFN-α-treated HEK-293 cells expressing HCoV-OC43 structural (M or N) or accessory (ns2a or ns5a) protein. Results are shown as the mean ± standard deviation (SD) of three independent experiments. Firefly luciferase activity measurements were normalized against Renilla luciferase levels.