ANALISIS DOCKING MOLEKULER 4H-PHYRAN-ONE DARI BUNGA CLITORIA TERNATEA L. TERHADAP TRANS-2-ENOYL-ACYL CARRIER PROTEIN REDUCTASE (FABI) SEBAGAI AGEN ANTIBAKTERI POTENSIAL
DOI:
https://doi.org/10.36526/biosense.v9i4.9707Keywords:
antibacterial, molecular docking, FabI, Clitoria ternatea, 4H-Pyran-4-oneAbstract
Meningkatnya prevalensi resistensi antimikroba telah mendorong eksplorasi senyawa bioaktif yang berasal dari tumbuhan sebagai agen antibakteri alternatif. Clitoria ternatea L. (bunga telang) mengandung berbagai senyawa bioaktif, termasuk 4H-Pyran-4-one, yang dilaporkan memiliki sifat antimikroba. Studi ini bertujuan untuk mengevaluasi potensi antibakteri 4H-Pyran-4-one terhadap trans-2-enoyl-acyl carrier protein reductase (FabI), enzim penting yang terlibat dalam biosintesis asam lemak bakteri, menggunakan penambatan molekuler dan prediksi ADMET. Struktur kristal FabI (PDB ID: 5CG1) diperoleh dari Protein Data Bank, sedangkan penambatan molekuler dilakukan menggunakan CB-Dock2 yang terintegrasi dengan AutoDock Vina. Tetrasiklin digunakan sebagai senyawa antibakteri referensi. Hasil penambatan menunjukkan bahwa 4H-Pyran-4-one menunjukkan afinitas pengikatan sebesar −5,5 kkal/mol, sedangkan tetrasiklin menunjukkan afinitas yang lebih kuat sebesar −9,0 kkal/mol. Analisis interaksi mengungkapkan bahwa 4H-Pyran-4-one membentuk dua ikatan hidrogen dengan THR38 dan interaksi hidrofobik dengan ILE92 dan VAL65. Analisis SwissADME menunjukkan sifat farmakokinetik yang menguntungkan, termasuk penyerapan gastrointestinal yang tinggi, kelarutan dalam air yang sangat baik, dan kepatuhan terhadap Aturan Lima Lipinski tanpa pelanggaran. Temuan ini menunjukkan bahwa 4H-Pyran-4-one memiliki karakteristik yang menjanjikan sebagai senyawa utama untuk pengembangan agen antibakteri yang ditargetkan pada FabI dengan afinitas pengikatan sebesar −5,5 kkal/mol.
Abstract
The rising prevalence of antimicrobial resistance has driven the exploration of plant-derived bioactive compounds as alternative antibacterial agents. *Clitoria ternatea* L. (butterfly pea) contains various bioactive compounds, including 4H-Pyran-4-one, which is reported to possess antimicrobial properties. This study aimed to evaluate the antibacterial potential of 4H-Pyran-4-one against *trans*-2-enoyl-acyl carrier protein reductase (FabI)—a crucial enzyme in bacterial fatty acid biosynthesis—using molecular docking and ADMET prediction methods. The crystal structure of FabI (PDB ID: 5CG1) was obtained from the Protein Data Bank, while molecular docking was performed using CB-Dock2, integrated with AutoDock Vina. Tetracycline was used as a reference antibacterial compound. Docking results showed that 4H-Pyran-4-one had a binding affinity of −5.5 kcal/mol, whereas tetracycline exhibited a stronger affinity of −9.0 kcal/mol. Interaction analysis revealed that 4H-Pyran-4-one formed two hydrogen bonds with THR38 and hydrophobic interactions with ILE92 and VAL65. SwissADME analysis indicated favorable pharmacokinetic properties, including high gastrointestinal absorption, excellent water solubility, and compliance with Lipinski's Rule of Five with no violations. These findings indicate that 4H-Pyran-4-one possesses promising characteristics as a lead compound for the development of FabI-targeting antibacterial agents, with a binding affinity of −5.5 kcal/mol.
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