tetano
Editor, Senior Moderator
J Med Chem
. 2026 Jul 16.
doi: 10.1021/acs.jmedchem.5c03311. Online ahead of print.
Structure-Based Adaptation of a SARS-CoV-2 Neutralizing Peptide to New Virus Variants
Nina Raasch[SUP] 1 [/SUP], Lucas Weißenborn[SUP] 1 [/SUP], Elie Richel[SUP] 2 [/SUP], Simon Schäfer[SUP] 3 [/SUP], Olena Denysenko[SUP] 3 [/SUP], Nils Bartelsen[SUP] 2 [/SUP], Heinrich Sticht[SUP] 3 [/SUP], Klaus Überla[SUP] 2 [/SUP], Jutta Eichler[SUP] 1 [/SUP]
Affiliations
The starting point of this work was a SARS-CoV-2 neutralizing peptide (LW25.13), which binds to the receptor-binding domain of the viral spike protein and inhibits the attachment of the virus to its cellular receptor ACE2. As LW25.13 is unable to neutralize later SARS-CoV-2 variants, such as omicron, we have extended the neutralization breadth of LW25.13 through structural and bioinformatic analysis. This involved the systematic variation of a range of positions and yielded peptides neutralizing SARS-CoV-2 beta and omicron at low nanomolar concentrations, while preserving the strong neutralizing capacity against earlier virus variants (wild-type, alpha, delta), as well as the proteolytic stability and α-helical conformation of the peptide. This gain in neutralizing breadth illustrates the utility of the peptide as a scaffold that can be adapted to different virus variants, which may prove useful for the development of peptides against new coronavirus variants of concern in the future.
. 2026 Jul 16.
doi: 10.1021/acs.jmedchem.5c03311. Online ahead of print.
Structure-Based Adaptation of a SARS-CoV-2 Neutralizing Peptide to New Virus Variants
Nina Raasch[SUP] 1 [/SUP], Lucas Weißenborn[SUP] 1 [/SUP], Elie Richel[SUP] 2 [/SUP], Simon Schäfer[SUP] 3 [/SUP], Olena Denysenko[SUP] 3 [/SUP], Nils Bartelsen[SUP] 2 [/SUP], Heinrich Sticht[SUP] 3 [/SUP], Klaus Überla[SUP] 2 [/SUP], Jutta Eichler[SUP] 1 [/SUP]
Affiliations
- PMID: 42463123
- DOI: 10.1021/acs.jmedchem.5c03311
The starting point of this work was a SARS-CoV-2 neutralizing peptide (LW25.13), which binds to the receptor-binding domain of the viral spike protein and inhibits the attachment of the virus to its cellular receptor ACE2. As LW25.13 is unable to neutralize later SARS-CoV-2 variants, such as omicron, we have extended the neutralization breadth of LW25.13 through structural and bioinformatic analysis. This involved the systematic variation of a range of positions and yielded peptides neutralizing SARS-CoV-2 beta and omicron at low nanomolar concentrations, while preserving the strong neutralizing capacity against earlier virus variants (wild-type, alpha, delta), as well as the proteolytic stability and α-helical conformation of the peptide. This gain in neutralizing breadth illustrates the utility of the peptide as a scaffold that can be adapted to different virus variants, which may prove useful for the development of peptides against new coronavirus variants of concern in the future.