Uji In Silico Aktivitas Antibakteri Peptida terhadap Bakteri E.Coli

Rima Rachmawati Putri, Firda Aulia Jannati, Dhea July Setiawati, Dina Mulyanti, Taufik Muhammad Fakih


ABSTRACT: Inappropriate use of antibiotics can cause antibiotic resistance, so the alternative treatment used is to use bioactive peptides. Antimicrobial peptides (AMP) are a group of molecules produced by cells and tissues for the body's defense. Antimicrobial peptides are optimal candidates for alternative treatment of antibiotic resistance. This study aims to compare the activity of bioactive peptide compounds against E.coli bacteria using the in silico method and the interactions of these bioactive peptide compounds involved in the mechanism of antimicrobial action. Modeling into 3D structures using PEP-FOLD the best conformation was selected and then molecular anchoring of E.coli was performed using PathDock software. The interactions formed were identified using the BIOVIA Discovery Studio software. The results obtained are that EQTLK peptide has a good affinity compared to other peptides because it has an ACE score of -36.16 kJ/mol.

Keyword: Antibiotics, Antimicrobial Peptides, E.Coli, Bioactive Peptides, In Silico.

ABSTRAK: Pengunaan antibiotika yang tidak tepat bisa menyebabkan resistensi antibiotika maka alternatif pengobatan yang digunakan yaitu menggunakan peptida bioaktif. Antimicrobial peptides (AMP)  merupakan kelompok molekul yang dihasilkan oleh sel dan jaringan untuk pertahanan tubuh. Peptida antimikroba merupakan kandidat yang optimal untuk alternatif pengobatan resistensi antibiotika. Penelitian ini bertujuan untuk membandingkan aktivitas senyawa peptida bioaktif terhadap bakteri E.coli menggunakan metode in silico dan interaksi senyawa peptida bioaktif tersebut terlibat dalam mekanisme aksi antimikroba. Dilakukan pemodelan ke dalam struktur 3D menggunakan PEP-FOLD konformasi terbaik dipilih lalu dilakukan penambatan molekular terhadap E.coli menggunakan software PathDock. Interaksi yang terbentuk diidentifikasi menggunakan software BIOVIA Discovery Studio. Hasil yang didapat yaitu Peptida EQTLK memiliki afinitas yang baik dibandingkan dengan peptida yang lain karena memiliki ACE score -36,16 kJ/mol.

Kata kunci: Antibiotika, Peptida Antimikroba,  E.coli, Peptida Bioaktif,  In Silico.


Antibiotika, Peptida Antimikroba, E.coli, Peptida Bioaktif, In Silico.

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DOI: http://dx.doi.org/10.29313/.v0i0.29267

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