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SARS-CoV-2 proteins

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    Genome-wide CRISPR activation screen identifies novel receptors for SARS-CoV-2 entry MESHD

    Authors: Shiyou Zhu; Ying Liu; Zhuo Zhou; Zhiying Zhang; Xia Xiao; Zhiheng Liu; Ang Chen; Xiaojing Dong; Feng Tian; Shihua Chen; Yiyuan Xu; Chunhui Wang; Qiheng Li; Xuran Niu; Qian Pan; Shuo Du; Junyu Xiao; Jianwei Wang; Wensheng Wei

    doi:10.1101/2021.04.08.438924 Date: 2021-04-09 Source: bioRxiv

    The ongoing pandemic of coronavirus disease 2019 MESHD ( COVID-19 MESHD) caused by severe acute respiratory syndrome coronavirus 2 MESHD (SARS-CoV-2) has been endangering worldwide public health and economy. SARS-CoV-2 infects MESHD a variety of tissues where the known receptor ACE2 HGNC is low or almost absent, suggesting the existence of alternative pathways for virus entry. Here, we performed a genome-wide barcoded-CRISPRa screen to identify novel host factors that enable SARS-CoV-2 infection MESHD. In addition to known host proteins, i.e PROTEIN. ACE2 HGNC, TMPRSS2 HGNC, and NRP1 HGNC, we identified multiple host components, among which LDLRAD3 HGNC, TMEM30A HGNC, and CLEC4G HGNC were confirmed as functional receptors for SARS-CoV-2. All these membrane proteins bind directly to spike's N-terminal domain ( NTD HGNC). Their essential and physiological roles have all been confirmed in either neuron or liver cells. In particular, LDLRAD3 HGNC and CLEC4G HGNC mediate SARS-CoV-2 entry MESHD and infection in a fashion independent of ACE2 HGNC. The identification of the novel receptors and entry mechanisms could advance our understanding of the multiorgan tropism of SARS-CoV-2, and may shed light on the development of the therapeutic countermeasures against COVID-19 MESHD.

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MeSH Disease
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