Article ; Online: Glyceraldehyde-3-Phosphate Dehydrogenase Binds with Spike Protein and Inhibits the Entry of SARS-CoV-2 into Host Cells.
2024 Volume 16, Issue 1, Page(s) 133–142
Abstract: Introduction: Coronavirus disease 2019 caused by coronavirus-2 (SARS-CoV-2) has emerged as an aggressive viral pandemic. Health care providers confront a challenging task for rapid development of effective strategies to combat this and its long-term ... ...
Abstract | Introduction: Coronavirus disease 2019 caused by coronavirus-2 (SARS-CoV-2) has emerged as an aggressive viral pandemic. Health care providers confront a challenging task for rapid development of effective strategies to combat this and its long-term after effects. Virus entry into host cells involves interaction between receptor-binding domain (RBD) of spike (S) protein S1 subunit with angiotensin converting enzyme present on host cells. Glyceraldehyde-3-phosphate dehydrogenase (GAPDH) is a moonlighting enzyme involved in cellular glycolytic energy metabolism and micronutrient homeostasis. It is deployed in various cellular compartments and the extra cellular milieu. Though it is known to moonlight as a component of mammalian innate immune defense machinery, till date its role in viral restriction remains unknown. Method: Recombinant S protein, the RBD, and human GAPDH protein were used for solid phase binding assays and biolayer interferometry. Pseudovirus particles expressing four different strain variants of S protein all harboring ZsGreen gene as marker of infection were used for flow cytometry-based infectivity assays. Results: Pseudovirus entry into target cells in culture was significantly inhibited by addition of human GAPDH into the extracellular medium. Binding assays demonstrated that human GAPDH binds to S protein and RBD of SARS-CoV-2 with nanomolar affinity. Conclusions: Our investigations suggest that this interaction of GAPDH interferes in the viral docking with hACE2 receptors, thereby affecting viral ingress into mammalian cells. |
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MeSH term(s) | Humans ; Spike Glycoprotein, Coronavirus/metabolism ; SARS-CoV-2/physiology ; COVID-19/virology ; Protein Binding ; Virus Internalization ; HEK293 Cells ; Betacoronavirus/physiology ; Glyceraldehyde-3-Phosphate Dehydrogenases/metabolism ; Pneumonia, Viral/virology ; Pneumonia, Viral/immunology ; Pandemics ; Coronavirus Infections/virology ; Angiotensin-Converting Enzyme 2/metabolism ; Glyceraldehyde-3-Phosphate Dehydrogenase (Phosphorylating) |
Chemical Substances | Spike Glycoprotein, Coronavirus ; spike protein, SARS-CoV-2 ; Glyceraldehyde-3-Phosphate Dehydrogenases (EC 1.2.1.-) ; GAPDH protein, human (EC 1.2.1.12) ; Angiotensin-Converting Enzyme 2 (EC 3.4.17.23) ; ACE2 protein, human (EC 3.4.17.23) ; Glyceraldehyde-3-Phosphate Dehydrogenase (Phosphorylating) (EC 1.2.1.12) |
Language | English |
Publishing date | 2024-02-07 |
Publishing country | Switzerland |
Document type | Journal Article ; Research Support, Non-U.S. Gov't ; News |
ZDB-ID | 2454158-8 |
ISSN | 1662-8128 ; 1662-811X |
ISSN (online) | 1662-8128 |
ISSN | 1662-811X |
DOI | 10.1159/000535634 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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