tetano
Editor, Senior Moderator
Curr Biol. 2020 Mar 13. pii: S0960-9822(20)30360-2. doi: 10.1016/j.cub.2020.03.022. [Epub ahead of print]
Probable Pangolin Origin of SARS-CoV-2 Associated with the COVID-19 Outbreak.
Zhang T[SUP]1[/SUP], Wu Q[SUP]1[/SUP], Zhang Z[SUP]2[/SUP].
Author information
Abstract
An outbreak of coronavirus disease 2019 (COVID-19) caused by the 2019 novel coronavirus (SARS-CoV-2) began in the city of Wuhan in China and has widely spread worldwide. Currently, it is vital to explore potential intermediate hosts of SARS-CoV-2 to control COVID-19 spread. Therefore, we reinvestigated published data from pangolin lung samples from which SARS-CoV-like CoVs were detected by Liu et al. [1]. We found genomic and evolutionary evidence of the occurrence of a SARS-CoV-2-like CoV (named Pangolin-CoV) in dead Malayan pangolins. Pangolin-CoV is 91.02% and 90.55% identical to SARS-CoV-2 and BatCoV RaTG13, respectively, at the whole-genome level. Aside from RaTG13, Pangolin-CoV is the most closely related CoV to SARS-CoV-2. The S1 protein of Pangolin-CoV is much more closely related to SARS-CoV-2 than to RaTG13. Five key amino acid residues involved in the interaction with human ACE2 are completely consistent between Pangolin-CoV and SARS-CoV-2, but four amino acid mutations are present in RaTG13. Both Pangolin-CoV and RaTG13 lost the putative furin recognition sequence motif at S1/S2 cleavage site that can be observed in the SARS-CoV-2. Conclusively, this study suggests that pangolin species are a natural reservoir of SARS-CoV-2-like CoVs.
Copyright ? 2020 Elsevier Inc. All rights reserved.
KEYWORDS:
COVID-19; SARS-CoV-2; origin; pangolin
PMID:32197085DOI:10.1016/j.cub.2020.03.022
Probable Pangolin Origin of SARS-CoV-2 Associated with the COVID-19 Outbreak.
Zhang T[SUP]1[/SUP], Wu Q[SUP]1[/SUP], Zhang Z[SUP]2[/SUP].
Author information
Abstract
An outbreak of coronavirus disease 2019 (COVID-19) caused by the 2019 novel coronavirus (SARS-CoV-2) began in the city of Wuhan in China and has widely spread worldwide. Currently, it is vital to explore potential intermediate hosts of SARS-CoV-2 to control COVID-19 spread. Therefore, we reinvestigated published data from pangolin lung samples from which SARS-CoV-like CoVs were detected by Liu et al. [1]. We found genomic and evolutionary evidence of the occurrence of a SARS-CoV-2-like CoV (named Pangolin-CoV) in dead Malayan pangolins. Pangolin-CoV is 91.02% and 90.55% identical to SARS-CoV-2 and BatCoV RaTG13, respectively, at the whole-genome level. Aside from RaTG13, Pangolin-CoV is the most closely related CoV to SARS-CoV-2. The S1 protein of Pangolin-CoV is much more closely related to SARS-CoV-2 than to RaTG13. Five key amino acid residues involved in the interaction with human ACE2 are completely consistent between Pangolin-CoV and SARS-CoV-2, but four amino acid mutations are present in RaTG13. Both Pangolin-CoV and RaTG13 lost the putative furin recognition sequence motif at S1/S2 cleavage site that can be observed in the SARS-CoV-2. Conclusively, this study suggests that pangolin species are a natural reservoir of SARS-CoV-2-like CoVs.
Copyright ? 2020 Elsevier Inc. All rights reserved.
KEYWORDS:
COVID-19; SARS-CoV-2; origin; pangolin
PMID:32197085DOI:10.1016/j.cub.2020.03.022