SARS-CoV-2 Proteins Bind to Hemoglobin and Its Metabolites
(1) Background: coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has been linked to hematological dysfunctions, but there are little experimental data that explain this. Spike (S) and Nucleoprotein (N) proteins have been putatively associated with these dysfunctions. In this work, we analyzed the recruitment of hemoglobin (Hb) and other metabolites (hemin and protoporphyrin IX-PpIX) by SARS-Cov2 proteins using different approaches. (2) Methods: shotgun proteomics (LC-MS/MS) after affinity column adsorption identified hemin-binding SARS-CoV-2 proteins. The parallel synthesis of the peptides technique was used to study the interaction of the receptor bind domain (RBD) and N-terminal domain (NTD) of the S protein with Hb and in silico analysis to identify the binding motifs of the N protein. The plaque assay was used to investigate the inhibitory effect of Hb and the metabolites hemin and PpIX on virus adsorption and replication in Vero cells. (3) Results: the proteomic analysis by LC-MS/MS identified the S, N, M, Nsp3, and Nsp7 as putative hemin-binding proteins. Six short sequences in the RBD and 11 in the NTD of the spike were identified by microarray of peptides to interact with Hb and tree motifs in the N protein by in silico analysis to bind with heme. An inhibitory effect in vitro of Hb, hemin, and PpIX at different levels was observed. Strikingly, free Hb at 1mM suppressed viral replication (99%), and its interaction with SARS-CoV-2 was localized into the RBD region of the spike protein. (4) Conclusions: in this study, we identified that (at least) five proteins (S, N, M, Nsp3, and Nsp7) of SARS-CoV-2 recruit Hb/metabolites. The motifs of the RDB of SARS-CoV-2 spike, which binds Hb, and the sites of the heme bind-N protein were disclosed. In addition, these compounds and PpIX block the virus's adsorption and replication. Furthermore, we also identified heme-binding motifs and interaction with hemin in N protein and other structural (S and M) and non-structural (Nsp3 and Nsp7) proteins.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:22 |
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| Enthalten in: |
International journal of molecular sciences - 22(2021), 16 vom: 21. Aug. |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Lechuga, Guilherme C [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 30.08.2021 Date Revised 03.04.2024 published: Electronic Citation Status MEDLINE |
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| doi: |
10.3390/ijms22169035 |
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| Förderinstitution / Projekttitel: |
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| 245 | 1 | 0 | |a SARS-CoV-2 Proteins Bind to Hemoglobin and Its Metabolites |
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| 500 | |a Date Revised 03.04.2024 | ||
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| 500 | |a Citation Status MEDLINE | ||
| 520 | |a (1) Background: coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has been linked to hematological dysfunctions, but there are little experimental data that explain this. Spike (S) and Nucleoprotein (N) proteins have been putatively associated with these dysfunctions. In this work, we analyzed the recruitment of hemoglobin (Hb) and other metabolites (hemin and protoporphyrin IX-PpIX) by SARS-Cov2 proteins using different approaches. (2) Methods: shotgun proteomics (LC-MS/MS) after affinity column adsorption identified hemin-binding SARS-CoV-2 proteins. The parallel synthesis of the peptides technique was used to study the interaction of the receptor bind domain (RBD) and N-terminal domain (NTD) of the S protein with Hb and in silico analysis to identify the binding motifs of the N protein. The plaque assay was used to investigate the inhibitory effect of Hb and the metabolites hemin and PpIX on virus adsorption and replication in Vero cells. (3) Results: the proteomic analysis by LC-MS/MS identified the S, N, M, Nsp3, and Nsp7 as putative hemin-binding proteins. Six short sequences in the RBD and 11 in the NTD of the spike were identified by microarray of peptides to interact with Hb and tree motifs in the N protein by in silico analysis to bind with heme. An inhibitory effect in vitro of Hb, hemin, and PpIX at different levels was observed. Strikingly, free Hb at 1mM suppressed viral replication (99%), and its interaction with SARS-CoV-2 was localized into the RBD region of the spike protein. (4) Conclusions: in this study, we identified that (at least) five proteins (S, N, M, Nsp3, and Nsp7) of SARS-CoV-2 recruit Hb/metabolites. The motifs of the RDB of SARS-CoV-2 spike, which binds Hb, and the sites of the heme bind-N protein were disclosed. In addition, these compounds and PpIX block the virus's adsorption and replication. Furthermore, we also identified heme-binding motifs and interaction with hemin in N protein and other structural (S and M) and non-structural (Nsp3 and Nsp7) proteins | ||
| 650 | 4 | |a Journal Article | |
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| 700 | 1 | |a Souza-Silva, Franklin |e verfasserin |4 aut | |
| 700 | 1 | |a Sacramento, Carolina Q |e verfasserin |4 aut | |
| 700 | 1 | |a Trugilho, Monique R O |e verfasserin |4 aut | |
| 700 | 1 | |a Valente, Richard H |e verfasserin |4 aut | |
| 700 | 1 | |a Napoleão-Pêgo, Paloma |e verfasserin |4 aut | |
| 700 | 1 | |a Dias, Suelen S G |e verfasserin |4 aut | |
| 700 | 1 | |a Fintelman-Rodrigues, Natalia |e verfasserin |4 aut | |
| 700 | 1 | |a Temerozo, Jairo R |e verfasserin |4 aut | |
| 700 | 1 | |a Carels, Nicolas |e verfasserin |4 aut | |
| 700 | 1 | |a Alves, Carlos R |e verfasserin |4 aut | |
| 700 | 1 | |a Pereira, Mirian C S |e verfasserin |4 aut | |
| 700 | 1 | |a Provance, David W |c Jr |e verfasserin |4 aut | |
| 700 | 1 | |a Souza, Thiago M L |e verfasserin |4 aut | |
| 700 | 1 | |a De-Simone, Salvatore G |e verfasserin |4 aut | |
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