Preprint Review Version 1 Preserved in Portico This version is not peer-reviewed

Molecular and Structural Insights into COVID-19 Pandemic

Version 1 : Received: 31 May 2020 / Approved: 31 May 2020 / Online: 31 May 2020 (21:41:44 CEST)

How to cite: Kadam, S.; Sukhramani, G.; Bishnoi, P.; Pable, A.; Barvkar, V. Molecular and Structural Insights into COVID-19 Pandemic. Preprints 2020, 2020050519 (doi: 10.20944/preprints202005.0519.v1). Kadam, S.; Sukhramani, G.; Bishnoi, P.; Pable, A.; Barvkar, V. Molecular and Structural Insights into COVID-19 Pandemic. Preprints 2020, 2020050519 (doi: 10.20944/preprints202005.0519.v1).

Abstract

The outbreak of a novel coronavirus (SARS-CoV2) associated with acute respiratory disease called COVID-19 marked the introduction of the third spillover of an animal CoV to humans in the last 2 decades. The SARS-CoV2 genome analysis with various bioinformatics tools revealed that it belongs to beta CoVs genera, with highly similar genome as bat coronavirus and receptor binding domain (RBD) of spike glycoprotein as Malayan pangolin coronavirus. Based on its genetic proximity, SARS-CoV2 is likely to be originated from bat derived CoV and transmitted to humans via an unknown intermediate mammalian host, probably Malayan pangolin. Further spike protein S1/S2 cleavage site of SARS-CoV2 has acquired polybasic furin cleavage site which is absent in bat and pangolin suggesting natural selection either in an animal host before zoonotic transfer or in humans following zoonotic transfer. In the current review, we recapitulate a preliminary opinion about the disease, origin and life cycle of SARS-CoV2, roles of virus proteins in pathogenesis, commonalities and differences between different corona viruses. We have also highlighted the evidences regarding the potential drugs and vaccine candidates with their modes of action to cope with this viral outbreak. Our review provides comprehensive up-dated information on molecular aspects of the SARS-CoV2.

Subject Areas

Angiotensin-Converting Enzyme 2; Spike glycoprotein; TMPRESS2; Furin; Malayan pangolin

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