Corpus overview


MeSH Disease

HGNC Genes

SARS-CoV-2 proteins

ProteinS (1)

NSP16 (1)


SARS-CoV-2 Proteins
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    Virion Structure and Mechanism of Propagation of Coronaviruses including SARS-CoV 2 (COVID -19 ) and some Meaningful Points for Drug or Vaccine Development

    Authors: Swapan Ghosh

    id:10.20944/preprints202008.0312.v1 Date: 2020-08-14 Source:

    SARS-CoV-2 or COVID-19 MESHD, a new seventh human corona virus, has out-broken in Wuhan, China since 31st December 2019, and quickly escalated to take the form of pandemic which killed many human beings throughout almost all countries across continents. The rapidity of its transmission from human to human is far greater than all previous human corona viruses which came into existence like SARS-CoV MESHD, MERS-CoV, etc. The nucleotide sequence of SARS-CoV-2 (isolates Wuhan-Hu-1) is 29,875 bp in ss-RNA. Symptoms of SARS-CoV-2 infected pneumonia MESHD include from asymptomatic to high fever and/or respiratory illnesses. Coronavirus virion (spherical/round /elliptical in shape) consists of three parts- outer membrane or envelope, nucleocapsid and genome (RNA). SARS-CoV-2 was shown to use receptor, angiotensin converting enzyme 2 HGNC ( ACE2 HGNC) for attachment to the cells through its surface spike (S) protein PROTEIN (S1), and the virion enters into the host cell through two routes- direct membrane fusion and endocytotic pathway. The RNA of SARS-CoV acts MESHD directly as mRNA and here minus(-) 1 programmed ribosomal frameshift (-1PRF) is being operated by slippery sequence and pseudoknot, so it translates 16 nonstructural proteins PROTEIN including RNA dependent RNA replicase. Then genomic RNA replicated continuously on – strand RNA template and subgenomic RNA transcribed discontinuously on –RNA template to sgmRNA. Subgenomic RNAs/sgmRNAs synthesize all structural proteins. This article takes into consideration the details of established theories of viral structure, viral attachment, mode of entry into human cells, different models of replication and transcription of virus genome proposed by eminent scientists over the years, and makes an in depth examination highlighting meaningful points or important target cites of viral propagation or synthesis, which are conserved, for prompt development of potent drugs or vaccine to counter COVID-19 MESHD for which human race is anxiously and eagerly waiting.

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MeSH Disease
HGNC Genes
SARS-CoV-2 Proteins

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