Structure-Based Design and Identification of Novel Plasmodium Falciparum Falcipain-2 Binders

Document Type : Regular Article

Authors

1 Department of Pharmaceutical Chemistry, BCDA College of Pharmacy & Technology, Hridaypur, Kolkata,700127, WB, India

2 Dr. BC Roy College of Pharmacy & AHS, Dr. Meghnad Saha Sarani, Bidhannagar, Durgapur-713212, WB, India

3 Department of Pharmaceutical Technology, JIS University, 81, Nilgunj Road, Agarpara, Kolkata-700109, WB, India

4 Ramkrishna Mahavidyalaya, Kailashahar, 799277, Tripura, India

5 Teerthankar Mahaveer college of pharmacy, Teerthankar Mahaveer University, Moradabad,UP,244001, India

6 Teerthanker Mahaveer College of Pharmacy, Teerthankar Mahaveer University, Moradabad, UP, 244001, India

7 Department of Pharmaceutical Chemistry, Maliba pharmacy College, Uka Tarsadia university, Gopal Vidyanagar, Bardoli-Mahuva road, Tarsadi, Surat, Gujrat,394350, India

8 Department of Pharmacy,School of Health Care and Allied Sciences,G.D Goenka University, Gurugram, Haryana 122103, India

9 Department of Pharmacy, BCDA College of Pharmacy & Technology, Jessore Road South, Hridaypur, Kolkata, West Bengal, 700127 India.

10.22036/pcr.2025.541290.2725
Abstract
Malaria remains a significant global health challenge, particularly in developing regions, necessitating the development of novel antimalarial agents. In this study, we employed a combination of structure-based modeling, includes molecular docking based virtual screening, molecular dynamics (MD) simulations, and pharmacokinetic evaluations on identifying potential binders targeting Plasmodium falciparum falcipain-2, a crucial protease for the parasite's survival. A re-docking approach was used to validate the docking protocol, achieving an RMSD of 1.697 Å, indicating high accuracy. The shortlisted compounds were then subjected to MD simulations over 100 ns, where their stability, flexibility, and compactness were analyzed using RMSD, RMSF, and radius of gyration (RoG) metrics. Ligands L2, L3, and L4 exhibited the most promising profiles, demonstrating strong stability, favorable binding orientations, and compatibility with the target's binding site, comparable or superior to the control ligand. Pharmacokinetic properties were assessed, and the drug-likeness of these compounds was confirmed, supporting their potential as falcipain-2 binders. This integrated approach identified promising binders that warrant further in vitro and in vivo validation for therapeutic application against P. falciparum. The methodology and findings contribute valuable insights into structure-based drug design for antimalarial compounds, offering potential approach to combat malaria effectively.

Graphical Abstract

Structure-Based Design and Identification of Novel Plasmodium Falciparum Falcipain-2 Binders

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Volume 14, Issue 1
Winter 2026
Pages 227-237

  • Receive Date 14 August 2025
  • Revise Date 11 September 2025
  • Accept Date 11 October 2025