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?:abstract
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COVID-19, a new pandemic caused by SARS-CoV-2, was first identified in 2019 in Wuhan, China The novel corona virus SARS-CoV-2 and the 2002 SARS-CoV have 74 % identity and use similar mechanisms to gain entry into the cell Both the viruses enter the host cell by binding of the viral spike glycoprotein to the host receptor, angiotensin converting enzyme 2 (ACE2) Targeting entry of the virus has a better advantage than inhibiting the later stages of the viral life cycle Potential inhibitors of SARS-CoV and SARS-CoV-2 Spike proteins was determined using molecular docking studies Curcumin, a naturally occurring phytochemical in Curcuma longa, is known to have broad pharmacological properties In the present study, curcumin and its derivatives were docked, using Autodock 4 2, onto the 6CRV and 6M0J to study their capability to act as inhibitors of the spike protein and thereby, viral entry The curcumin and its derivatives displayed binding energies, ΔG, ranging from -14 18 to -4 04 kcal/mol (6CRV) and -10 01 to -5 33 kcal/mol (6M0J) The least binding energy was seen in bis-desmethoxycurcumin with: ΔG = -14 18 kcal/mol (6CRV) and -10 01 kcal/mol (6M0J) A good binding energy, drug likeness and efficient pharmacokinetic parameters suggest the potential of curcumin and few of its derivatives as SARS-CoV-2 spike protein inhibitors br
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