ACE-2-Derived Biomimetic Peptides for the Inhibition of Spike Protein of SARS-CoV-2Click to copy article linkArticle link copied!
- Saroj Kumar PandaSaroj Kumar PandaDepartment of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Berhampur, Berhampur 760010 Odisha, IndiaMore by Saroj Kumar Panda
- Parth Sarthi Sen GuptaParth Sarthi Sen GuptaDepartment of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Berhampur, Berhampur 760010 Odisha, IndiaMore by Parth Sarthi Sen Gupta
- Satyaranjan BiswalSatyaranjan BiswalDepartment of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Berhampur, Berhampur 760010 Odisha, IndiaMore by Satyaranjan Biswal
- Abhik Kumar RayAbhik Kumar RayDepartment of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Berhampur, Berhampur 760010 Odisha, IndiaMore by Abhik Kumar Ray
- Malay Kumar Rana*Malay Kumar Rana*Email: [email protected]Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Berhampur, Berhampur 760010 Odisha, IndiaMore by Malay Kumar Rana
Abstract

SARS-CoV-2, a novel coronavirus causing overwhelming death and infection worldwide, has emerged as a pandemic. Compared to its predecessor SARS-CoV, SARS-CoV-2 is more infective for being highly contagious and exhibiting tighter binding with host angiotensin-converting enzyme 2 (hACE-2). The entry of the virus into host cells is mediated by the interaction of its spike protein with hACE-2. Thus, a peptide that has a resemblance to hACE-2 but can overpower the spike protein–hACE-2 interaction will be a potential therapeutic to contain this virus. The non-interacting residues in the receptor-binding domain of hACE-2 have been mutated to generate a library of 136 new peptides. Out of this library, docking and virtual screening discover seven peptides that can exert a stronger interaction with the spike protein than hACE-2. A peptide derived from simultaneous mutation of all the non-interacting residues of hACE-2 yields almost three-fold stronger interaction than hACE-2 and thus turns out here to be the best peptide inhibitor of the novel coronavirus. The binding of the best peptide inhibitor with the spike protein is explored further by molecular dynamics, free energy, and principal component analysis, which demonstrate its efficacy compared to hACE-2. The delivery of the screened inhibitors with nanocarriers like metal–organic frameworks will be worthy of further consideration to boost their efficacy.
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