Author: Li, Daixi; Chen, Peiqin; Shi, Ting; Mehmood, Aamir; Qiu, Jingfei
Title: HD5 and LL-37 Inhibit SARS-CoV and SARS-CoV-2 Binding to Human ACE2 by Molecular Simulation Cord-id: jg6gqzrd Document date: 2021_8_7
ID: jg6gqzrd
Snippet: The coronavirus (COVID-19) pandemic is still spreading all over the world. As reported, angiotensin-converting enzyme-2 (ACE2) is a receptor of SARS-CoV-2 spike protein that initializes viral entry into host cells. Previously, the human defensin 5 (HD5) has been experimentally confirmed to be functional against the SARS-CoV-2. The present study proposes a human cathelicidin known as LL37 that strongly binds to the carboxypeptidase domain of human ACE2 compared to HD5. Therefore, LL37 bears a gre
Document: The coronavirus (COVID-19) pandemic is still spreading all over the world. As reported, angiotensin-converting enzyme-2 (ACE2) is a receptor of SARS-CoV-2 spike protein that initializes viral entry into host cells. Previously, the human defensin 5 (HD5) has been experimentally confirmed to be functional against the SARS-CoV-2. The present study proposes a human cathelicidin known as LL37 that strongly binds to the carboxypeptidase domain of human ACE2 compared to HD5. Therefore, LL37 bears a great potential to be tested as an anti-SARS-CoVD-2 peptide. We investigated the molecular interactions formed between the LL37 and ACE2 as well as HD5 and ACE2 tailed by their thermodynamic stability. The MM-PBSA and free energy landscape analysis outcomes confirmed its possible inhibitory effect against the SARS-CoV-2. The results obtained here could help propose a promising therapeutic strategy against the havoc caused by SARS-CoV-2 infections. [Image: see text] SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s12539-021-00462-3.
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