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Effectiveness of Bioactive Compound as Antibacterial and Anti-Quorum Sensing Agent from Myrmecodia pendans: An In
Mieke Hemiawati Satari1, Eti Apriyanti2, Hendra Dian Adhita Dharsono3
1Department of Oral Biology, Faculty of Dentistry, Universitas Padjadjaran, Bandung 40132, Indonesia.
Background:
antibiotic resistance encourages the development of new therapies, or the discovery of novel antibacterial agents. Previous research revealed that Myrmecodia pendans (Sarang Semut) contain potential antibacterial agents. However, specific proteins inhibited by them have not yet been identified as either proteins targeted by antibiotics or proteins that have a role in the quorum-sensing system. This study aims to investigate and predict the action mode of antibacterial compounds with specific proteins by following the molecular docking approach.
Methods:
butein (1), biflavonoid (2), 3″-methoxyepicatechin-3-O-epicatechin (3), 2-dodecyl-4-hydroxylbenzaldehyde (4), 2-dodecyl-4-hydroxylbenzaldehyde (5), pomolic acid (6), betulin (7), and sitosterol-(6'-O-tridecanoil)-3-O-β-D-glucopyranoside (8) from M. pendans act as the ligand. Antibiotics or substrates in each protein were used as a positive control. To screen the bioactivity of compounds, ligands were analyzed by Prediction of Activity Spectra for Substances (PASS) program. They were docked with 12 proteins by AutoDock Vina in the PyRx 0.8 software application. Those proteins are penicillin-binding protein (PBP), MurB, Sortase A (SrtA), deoxyribonucleic acid (DNA) gyrase, ribonucleic acid (RNA) polymerase, ribosomal protein, Cytolysin M (ClyM), FsrB, gelatinase binding-activating pheromone (GBAP), and PgrX retrieved from UniProt. The docking results were analyzed by the ProteinsPlus and Discovery Studio software applications.
Results:
most compounds have Pa value over 0.5 against proteins in the cell wall. In nearly all proteins, biflavonoid (2) has the strongest binding affinity. However, compound 2 binds only three residues, so that 2 is the non-competitive inhibitor.
Conclusion:
compound 2 can be a lead compound for an antibacterial agent in each pathway.
Insights
This study identified biflavonoid from Myrmecodia pendans as a potential antibacterial agent. Molecular docking revealed its strong binding affinity, suggesting it as a lead compound for new antibiotic development.
Area of Science:
- Phytochemistry
- Computational Chemistry
- Pharmacology
Background:
- Antibiotic resistance necessitates novel therapeutic strategies and antibacterial agents.
- Myrmecodia pendans (Sarang Semut) possesses compounds with potential antibacterial activity.
- The specific protein targets of these compounds, particularly in quorum sensing, remain largely unidentified.
Purpose of the Study:
- To investigate and predict the mechanism of action of antibacterial compounds from Myrmecodia pendans.
- To identify specific protein targets for these compounds using molecular docking.
- To explore the potential of these compounds as novel antibacterial agents.
Main Methods:
- Eight compounds from Myrmecodia pendans were used as ligands, with antibiotics as positive controls.
- Ligands were screened for bioactivity using the Prediction of Activity Spectra for Substances (PASS) program.
- Molecular docking was performed using AutoDock Vina against 12 key bacterial proteins, including penicillin-binding protein and DNA gyrase.
Main Results:
- Several compounds exhibited significant predicted activity (Pa > 0.5) against cell wall proteins.
- Biflavonoid (compound 2) demonstrated the strongest binding affinity across most tested proteins.
- Biflavonoid acts as a non-competitive inhibitor due to binding at only three residues.
Conclusions:
- Biflavonoid from Myrmecodia pendans shows promise as a lead compound for developing new antibacterial agents.
- The identified binding interactions provide a basis for further drug design and development.
- This research contributes to understanding natural product-based strategies against antibiotic resistance.
Related Concept Videos
Gene Regulation in Microbial Communities: Quorum Sensing
Antimicrobial Effectiveness
Biological Methods for Microbial Control
Bacterial Signaling

