Data mining and molecular dynamics analysis to detect HIV-1 reverse transcriptase RNase H activity inhibitor.

Area of Science:

• Virology
• Drug Discovery
• Computational Biology

Background:

• Human immunodeficiency virus type 1 (HIV-1) remains a significant global health challenge, necessitating novel therapeutic strategies.
• Targeting essential viral proteins with conserved functions offers a promising avenue for developing effective antiviral agents.
• The reverse transcriptase (R.T) enzyme's RNase H activity is crucial for HIV-1 replication and presents a potential drug target due to its conserved nature.

Purpose of the Study:

• To identify a novel drug candidate capable of inhibiting HIV-1 replication.
• To explore the RNase H activity of the HIV-1 reverse transcriptase as a therapeutic target.
• To screen for small molecules that can effectively inhibit this specific viral activity.

Main Methods:

• Utilized data mining and molecular dynamics simulations on HIV-1 genomes.
• Performed MAUVE analysis to identify conserved and low-mutation targets within HIV-1.
• Conducted virtual screening of approximately 94,000 small molecule inhibitors.
• Validated hit compounds using molecular dynamics simulations and MM/PBSA for stability and binding free energy assessment.

Main Results:

• The RNase H activity of the reverse transcriptase (R.T) enzyme was identified as a highly conserved and suitable target.
• Phomoarcherin B, a compound with known anticancer properties, was identified as the most promising inhibitor candidate.
• Molecular dynamics simulations and MM/PBSA confirmed the stability and favorable binding free energy of Phomoarcherin B.

Conclusions:

• This study presents Phomoarcherin B as a potential new drug candidate for inhibiting HIV-1 replication by targeting reverse transcriptase RNase H activity.
• The identified target and drug candidate offer a novel approach for HIV-1 treatment strategies.
• Further in vitro and in vivo studies are essential to validate the efficacy and safety of Phomoarcherin B, alongside investigations into its broader effects on viral replication and interactions with other HIV-1 proteins.