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Journal : Makara Journal of Technology

 1 
Expression and the Functional Study of Fusion Proteins α-Amylase and Hemolysin- αas an Application in Biofilm Polysaccharide Degradation Sugiarta, Gede Yuda; Wiseso, Anggoro; Sari, Siska Yuliana; Kamila, Etri Dian; Geraldine, Vanessa; Christina, Diana; Hanifi, Muhammad; Satyapertiwi, Dwiantari; Hertanto, Robby; Bela, Budiman; Yohda, Masafumi; Sahlan, Muhamad
Makara Journal of Technology Vol. 20, No. 3
Publisher : UI Scholars Hub

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Abstract

Biofilm is an aggregate of consortium bacteria that adhere to each other on a surface. It is usually protected by the exopolysaccharide layer. Various invasive medical procedures, such as catheterization, endotracheal tube installation, and contact lens utilization, are vulnerable to biofilm infection. The National Institute of Health (NIH) estimates 65% of all microbial infections are caused by biofilm. Periplasmic α-amylase (MalS) is an enzyme that hydrolyzes α-1, 4- glicosidic bond in glycogen, starch, and others related polysaccharides in periplasmic space. Another protein called hemolysin-α (HlyA) is a secretion signal protein on C terminal of particular peptide in gram negative bacteria. We proposed a novel recombinant plasmid expressing α-amylase and hemolysin-α fusion in pSB1C3 which is cloned into E.coli to enable α-amylase excretion to extracellular for degrading biofilm polysaccharides content, as in starch agar. Microtiter assay was performed to analyze the reduction percentage of biofilm by adding recombinant E.coli into media. This system is more effective in degrading biofilm from gram positive bacteria i.e.: Bacillus substilis (30.21%) and Staphylococcus aureus (24.20%), and less effective degrading biofilm of gram negative i.e.: Vibrio cholera (5.30%), Pseudomonas aeruginosa (8.50%), Klebsiella pneumonia (6.75%) and E. coli (-0.6%). Gram positive bacteria have a thick layer of peptidoglycan, causing the enzyme to work more effectively in degrading polysaccharides.
Co-Authors Ade P.R. Simaremare Andi Yasmon Andrijono Andrijono Anggraini Alam Anis Anis Ardiana Kusumaningrum Armi Susandi Aroem Naroeni Aroem Naroeni Ascobat, Purwantyastuti ASRI SULFIANTI Beti Ernawati Dewi Cahyani, Hesti Pramesti Christina, Diana Cintera Rahmagiarti Diah Iskandriati Dian Amirulloh Dimas Seto Prasetyo Dondin Sajuthi Elisna Syahruddin Evy Yunihastuti FERA IBIRAHIM Fera Ibrahim Firdaus Sirait Ganjar Noviar Gede Eko Darmono Geraldine, Vanessa Hanifi, Muhammad Hartiyowidi Yuliawuri Hartono, Soni Herna Herna Herna, Herna Hertanto, Robby Ibnu Agus Ariyanto Iin Maemunah Ingrid S. Surono Irawan, Priscilla Felicia Apriliani Jeanne Adiwinata Pawitan Jeanne Elvia Christian Kamila, Etri Dian Ketut Tuti Parwati Lili Indrawati Maria Lina R. Maria Lina Rosilawati Melinda Remelia Muhayya, Syarifah Raisha Murdani Abdullah Mursinah Mursinah Mursinah Mursinah Ni Ken Ritchie Ni Nengah Dwi Fatmawati Nia Kurniati Nuzli Fahdia Mazfufah Pamungkas, Joko Pauline Phoebe Halim Pramita Gayatri Pratiwi, Ekawati Betty Radiana Dhewayani Antarianto SAHLAN, MUHAMAD Sari, Siska Yuliana Satyapertiwi, Dwiantari Silvia Tri Widyaningtyas Silvia Tri Widyaningtyas Silvia Tri Widyaningtyas Silvia Tri Widyaningtyas Silvia Tri Widyaningtyas Silvia Triwidyaningtyas Sofy Meilany Subangkit Subangkit Subiantistha, Tanaya Sugiarta, Gede Yuda SUWIJIYO PRAMONO Utami, Mardhah Sastri VIVI SETIAWATY Widianingtyas, Silvia Widyaningtyas, Silvia Tri Wiseso, Anggoro Yohda, Masafumi YULIANTY MUHAYAR Yuliar Budi Hartanto Yusmaniar Yusmaniar Yuyun SM Soedarmono Yuyun Soedarmono Zakiudin Munasir