L-asparaginase merupakan enzim yang menghidrolisis L-asparagin menjadi L-aspartat dan ammonia yang dapat digunakan dalam terapi pengobatan Leukemia Limfoblastik Akut. Penentuan struktur 3D L-asparaginase dari berbagai sumber dapat memberikan informasi penting dalam memahami sifat dan fungsi biokimia L-asparaginase di level molekuler untuk penelusuran L-asparaginase alternatif sebagai protein teurapetik. Tujuan penelitian ini adalah memprediksi struktur 3D enzim L-asparaginase II dari bakteri laut Vibrio sp. AND4 dengan E.coli L-asparaginase II mutant (T12V) in complex with L-Asn at pH 7.0 [Escherichia coli K-12] (PDB ID: 6PA9) sebagai templat struktur, menggunakan metode pemodelan homologi dengan program SWISS-MODEL. Penelitian ini menghasilkan model struktur 3D dengan Sequence identity 70,55%, memiliki nilai QMEANDisCo 0,86±0,05 dan nilai GMQE sebesar 0,86. Terdapat 93,1% residu berada di daerah the most favored regions dan 0,3% residu berada di daerah disallowed regions pada Ramachandran plot, dengan G-Factors sebesar -0.08 yang memenuhi syarat-syarat kualitas struktur ideal.
Skin diseases, including acne, can be caused by a microbial imbalance (dysbiosis). The specific bacteria involved in acne dysbiosis are Cutibacterium (Propionibacterium) acnes and Staphylococcus epidermidis. Black garlic has better potential to be alternative antibiotic and chemical to curing ance and maintaining skin health, because it has antimicrobial potential and can inhibit the decrease in collagen deposition on the skin. These potentials can be alternative of antibiotics and chemicals to treat acne and maintain healthy skin. This study aimed to determine the antibacterial activity of black garlic extract against bacteria that cause acne dysbiosis. Garlic was aging with 3 variations of time (7, 14, and 21 days) then macerated with 70% alcohol and tested for antimicrobial activity to Cutibacterium acnes and Staphylococcus epidermidis with clindamycin as positive control. Black garlic extract provided inhibitory activity against Staphylococcus epidermidis and Cutibacterium acnes. The best recommendation time for aging garlic to prevent skin dysbiosis causes acne is 7 to 14 days.
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