Bioactive compound of Sargassum polycystum for the potential antiviral of WSSV main protease (VP26): an In Silico Approach
Asmi Citra Malina A.R.Tassakka(1*), Latifa Baharuddin(1), Marlina Achmad(1), Israini Wiyulandari Iskandar(2), Jamaluddin Fitrah Alam(1), Andi N Renita Relatami(3), Gunarto Latama(1), Budimawan(1), Ellya Sinurat(4) and Rahadian Zainul(5)

1Faculty of Marine Science and Fisheries, Universitas Hasanuddin, Makassar, South Sulawesi, Indonesia- 2Biomedicine, Postgraduate School, Universitas Hasanuddin, Makassar, South Sulawesi, Indonesia- 3Faculty of Medicine, Universitas Hasanuddin, Makassar, South Sulawesi, Indonesia- 4Research Center for Marine and Fisheries Product and Biotechnology, Jakarta- 5Department of Chemistry, Faculty of Mathematics and Natural Sciences Universitas Negeri Padang, Padang, INDONESIA

Abstract

White spot syndrome virus (WSSV) is a double-stranded DNA virus that causing a high mortality and leading to economic loss in shrimp culture. Virus envelope structural proteins play a major role in viral infection and the initial interaction with the host cell. VP26 is one of the major envelope proteins present approximately 60% in the envelope of WSSV. In this recent study, the bioactive compounds from Sargassum polycystum algae have been investigated by molecular docking against VP26 protein from WSSV in shrimp. This study aims to identify the high-affinity potential bioactive compound of Sargassum polycystum as an antiviral of WSSV in blocking VP26 using computational approach. In this study, 30 compounds were extracted and identified by GC-MS analysis and 28 compounds have screened against VP26 of WSSV using molecular docking. The obtain results showed two compounds that 2(4H)-Benzofuranone, 5,6,7,7A-Tetrahydro-6-Hydroxy-4,4,7A-Trimethyl (-7,3 Kcal/mol) and 1,2-Benzenedicarboxylic acid (-7,2 Kcal/mol) were the high binding affinity score in molecular docking study compared to Chloroquine (-6,5 Kcal/mol) affinity score as a control in this study. Therefore, these natural compounds contained in Sargassum polycystum can be utilized as an antiviral against the WSSV wich can increase productivity in the aquaculture sector.

Keywords: Seaweeds, Sargassum, WSSV, In Silico, Shrimp

Topic: Marine and Fisheries Biotechnology