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Host and viral proteins involved in SARS‐CoV‐2 infection differentially bind heme
In most severe cases, SARS‐CoV‐2‐induced autoimmune reactions have been associated with hemolytic complications. Hemolysis‐derived heme from ruptured red blood cells has been shown to trigger a variety of fatal proinflammatory and procoagulant effects, which might deteriorate the progression of COVI...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley & Sons, Inc.
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9538320/ https://www.ncbi.nlm.nih.gov/pubmed/36161737 http://dx.doi.org/10.1002/pro.4451 |
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author | Hopp, Marie‐T. Rathod, Dhruv C. Imhof, Diana |
author_facet | Hopp, Marie‐T. Rathod, Dhruv C. Imhof, Diana |
author_sort | Hopp, Marie‐T. |
collection | PubMed |
description | In most severe cases, SARS‐CoV‐2‐induced autoimmune reactions have been associated with hemolytic complications. Hemolysis‐derived heme from ruptured red blood cells has been shown to trigger a variety of fatal proinflammatory and procoagulant effects, which might deteriorate the progression of COVID‐19. In addition, the virus itself can induce proinflammatory signals via the accessory protein 7a. Direct heme binding to the SARS‐CoV‐2 protein 7a ectodomain and other COVID‐19‐related proteins has been suggested earlier. Here, we report the experimental analysis of heme binding to the viral proteins spike glycoprotein, protein 7a as well as the host protein ACE2. Thus, protein 7a chemical synthesis was established, including an in‐depth analysis of the three different disulfide‐bonded isomers. Surface plasmon resonance spectroscopy and in silico studies confirm a transient, biphasic binding behavior, and heme‐binding affinities in the nano‐ to low micromolar range. These results confirm the presence of the earlier identified heme‐binding motifs and emphasize the relevance for consideration of labile heme in preexisting or SARS‐CoV‐2‐induced hemolytic conditions in COVID‐19 patients. |
format | Online Article Text |
id | pubmed-9538320 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | John Wiley & Sons, Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-95383202022-10-11 Host and viral proteins involved in SARS‐CoV‐2 infection differentially bind heme Hopp, Marie‐T. Rathod, Dhruv C. Imhof, Diana Protein Sci Full‐length Papers In most severe cases, SARS‐CoV‐2‐induced autoimmune reactions have been associated with hemolytic complications. Hemolysis‐derived heme from ruptured red blood cells has been shown to trigger a variety of fatal proinflammatory and procoagulant effects, which might deteriorate the progression of COVID‐19. In addition, the virus itself can induce proinflammatory signals via the accessory protein 7a. Direct heme binding to the SARS‐CoV‐2 protein 7a ectodomain and other COVID‐19‐related proteins has been suggested earlier. Here, we report the experimental analysis of heme binding to the viral proteins spike glycoprotein, protein 7a as well as the host protein ACE2. Thus, protein 7a chemical synthesis was established, including an in‐depth analysis of the three different disulfide‐bonded isomers. Surface plasmon resonance spectroscopy and in silico studies confirm a transient, biphasic binding behavior, and heme‐binding affinities in the nano‐ to low micromolar range. These results confirm the presence of the earlier identified heme‐binding motifs and emphasize the relevance for consideration of labile heme in preexisting or SARS‐CoV‐2‐induced hemolytic conditions in COVID‐19 patients. John Wiley & Sons, Inc. 2022-10-26 2022-11 /pmc/articles/PMC9538320/ /pubmed/36161737 http://dx.doi.org/10.1002/pro.4451 Text en © 2022 The Authors. Protein Science published by Wiley Periodicals LLC on behalf of The Protein Society. https://creativecommons.org/licenses/by-nc/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc/4.0/ (https://creativecommons.org/licenses/by-nc/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes. |
spellingShingle | Full‐length Papers Hopp, Marie‐T. Rathod, Dhruv C. Imhof, Diana Host and viral proteins involved in SARS‐CoV‐2 infection differentially bind heme |
title | Host and viral proteins involved in SARS‐CoV‐2 infection differentially bind heme |
title_full | Host and viral proteins involved in SARS‐CoV‐2 infection differentially bind heme |
title_fullStr | Host and viral proteins involved in SARS‐CoV‐2 infection differentially bind heme |
title_full_unstemmed | Host and viral proteins involved in SARS‐CoV‐2 infection differentially bind heme |
title_short | Host and viral proteins involved in SARS‐CoV‐2 infection differentially bind heme |
title_sort | host and viral proteins involved in sars‐cov‐2 infection differentially bind heme |
topic | Full‐length Papers |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9538320/ https://www.ncbi.nlm.nih.gov/pubmed/36161737 http://dx.doi.org/10.1002/pro.4451 |
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