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• W4289133670 startingPage "6422" @default.
• W4289133670 abstract "This study proposes a novel model for integration of SARS-CoV-2 into host cell via endocytosis as a possible alternative to the prevailing direct fusion model. It is known that the SARS-CoV-2 spike protein undergoes proteolytic cleavage at S1-S2 cleavage site and the cleaved S2 domain is primed by the activated serine protease domain (SPD) of humanTMPRSS2 to become S2'. The activated SPD of TMPRSS2 is formed after it is cleaved by autocatalysis from the membrane bound non-catalytic ectodomain (hNECD) comprising of LDLRA CLASS-I repeat and a SRCR domain. It is known that the SRCR domains as well as LDLRA repeat harboring proteins mediate endocytosis of viruses and certain ligands. Based on this, we put forward a hypothesis that the exposed hNECD binds to the S2' as both are at an interaction proximity soon after S2 is processed by the SPD and this interaction may lead to the endocytosis of virus. Based on this hypothesis we have modelled the hNECD structure, followed by docking studies with the known 3D structure of S2'. The interaction interface of hNECD with S2' was further used for virtual screening of FDA-approved drug molecules and Indian medicinal plant-based compounds. We also mapped the known mutations of concern and mutations of interest on interaction interface of S2' and found that none of the known mutations map onto the interaction interface. This indicates that targeting the interaction between the hNECD of TMPRSS2 and S2' may serve as an attractive therapeutic target.Communicated by Ramaswamy H. Sarma." @default.
• W4289133670 created "2022-08-01" @default.
• W4289133670 creator A5006776546 @default.
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• W4289133670 date "2022-07-31" @default.
• W4289133670 modified "2023-09-30" @default.
• W4289133670 title "Human TMPRSS2 non-catalytic ectodomain and SARS-CoV-2 S2' subunit interaction mediated SARS-CoV-2 endocytosis: a model proposal with virtual screening for potential drug molecules to inhibit this interaction" @default.
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• W4289133670 doi "https://doi.org/10.1080/07391102.2022.2105956" @default.
• W4289133670 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/35912718" @default.
• W4289133670 hasPublicationYear "2022" @default.
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