Title : Comparative docking studies to understand the binding affinity of nicotine with soluble ACE2 (sACE2)-SARS-CoV-2 complex over sACE2.

Pub. Date : 2020

PMID : 33052306






6 Functional Relationships(s)
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1 In the presence of nicotine, INS1 and sACE2 showed a reduced binding affinity score of -12.6 kcal/mol (Vs -15.7 kcal/mol without nicotine), and a lowered interface area of 1933.6 A2 (Vs 2057.3A2 without nicotine). Nicotine forkhead box M1 Homo sapiens
2 In the presence of nicotine, INS1 and sACE2 showed a reduced binding affinity score of -12.6 kcal/mol (Vs -15.7 kcal/mol without nicotine), and a lowered interface area of 1933.6 A2 (Vs 2057.3A2 without nicotine). Nicotine forkhead box M1 Homo sapiens
3 In the presence of nicotine, INS1 and sACE2 showed a reduced binding affinity score of -12.6 kcal/mol (Vs -15.7 kcal/mol without nicotine), and a lowered interface area of 1933.6 A2 (Vs 2057.3A2 without nicotine). Nicotine forkhead box M1 Homo sapiens
4 However, nicotine showed a higher binding affinity score of -6.33 kcal/mol for the sACE2-INS1 complex than the sACE2 alone with -5.24 kcal/mol. Nicotine forkhead box M1 Homo sapiens
5 A lowered inhibitory constant value of 22.95microM recorded while nicotine interacted with the sACE2-INS1 complex over the sACE2 alone with 151.69 microM. Nicotine forkhead box M1 Homo sapiens
6 In summary, nicotine showed a profound binding affinity for the sACE2-INS1 complex than the sACE2 alone paving for the clinical trials to validate its therapeutic efficacy as a bitter compound against the SARS-CoV-2 virulence. Nicotine forkhead box M1 Homo sapiens