HYBRID EVENT: You can participate in person at Paris, France or Virtually from your home or work.

6th Edition of International Conference on

Traditional Medicine, Ethnomedicine and Natural Therapies

June 20-22, 2024 | Paris, France

Traditional Medicine 2023

Komgrit Eawsakul

Speaker at Traditional Medicine, Ethnomedicine and Natural Therapies 2023 - Komgrit Eawsakul
Walailak University, Thailand
Title : Homology modeling, molecular docking, molecular dynamic simulation, and drug-likeness of the modified compounds against targeted protein


Acanthamoeba species are capable of causing amoebic keratitis (AK). As a monotherapy, alpha-mangostin is effective for the treatment of AK; however, its bioavailability is quite poor. Moreover, the efficacy of therapy is contingent on the parasite and virulent strains. To improve readiness against AK, it is necessary to find other derivatives with accurate target identification. Beta-tubulin (BT) has been used as a target for anti-Acanthamoeba (A. keratitis). In this work, therefore, a model of the BT protein of A. keratitis was constructed by homology modeling utilizing the amino acid sequence from NCBI (GenBank: JQ417907.1). Ramachandran Plot was responsible for validating the protein PDB. The verified BT PDB was used for docking with the specified ligand. Based on an improved docking score compared to alpha-mangostin (AM), two modified compounds were identified: 1,6-dihydroxy-7-methoxy-2,8-bis(3-methylbut-2-en-1-yl)-9H-xanthen-9-one (C1) and 1,6-dihydroxy-2,8-bis(3-methylbut-2-en-1-yl)-9H-xanthen-9-one (C2). In addition, molecular dynamics simulations were conducted to analyze the interaction characteristics of the two bound BT–new compound complexes. During simulations, the TRP9, ARG50, VAL52, and GLN122 residues of BT-C1 that align to the identical residues in BT-AM generate consistent hydrogen bond interactions with 0-3 and 0-2. However, the BT-C2 complex has a different binding site, TYR 258, ILE 281, and SER 302, and can form more hydrogen bonds in the range 0-4. Therefore, this study reveals that C1 and C2 inhibit BT as an additive or synergistic effect; however, further in vitro and in vivo studies are needed.

Audience Take Away Notes:

  • Able to simulate 3D proteins by using amino sequences.
  • To develop compounds that are derived from plants to be specific to target proteins.
  • Able to develop medicinal herbs by using computers to define pharmacokinetic
  • Able to explain molecular interaction between active substances and target proteins that cause disease.


Assistant professor of applied Thai traditional medicine Komgrit Eawsakul (FHEA) studied applied Thai traditional medicine at the Walailak University, Thailand and graduated as master of biomedical engineering in 2017. I then joined the research group of Assoc.Prof. Norased Nasongkla at drug delivery system, Mahidol university. After one year, I worked at a stem cell company, Reviva thailand. Now, I am a lecturer in Applied Thai traditional medicine. My area of knowledge was natural product, drug delivery systems, stem cell, molecular docking and molecular dynamics. however, most of my published work is related to molecular docking and molecular dynamics.