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Infectious diseases caused by viruses have become a serious public health issue in the recent
past, including the current pandemic situation of COVID-19. Enveloped viruses are most commonly
known to cause emerging and recurring infectious diseases. Viral and cell membrane fusion is the major
key event in the case of enveloped viruses that is required for their entry into the cell. Viral fusion
proteins play an important role in the fusion process and in infection establishment. Because of this,
the fusion process targeting antivirals become an interest to fight against viral diseases caused by the
enveloped virus. Lower respiratory tract infections casing viruses like influenza, respiratory syncytial
virus (RSV), and severe acute respiratory syndrome coronavirus (SARS-CoV) are examples of such
enveloped viruses that are at the top in public health issues. Here, we summarized the viral fusion protein
targeted antiviral peptides along with their mechanism and specific design to combat the viral
fusion process. The pandemic COVID-19, severe respiratory syndrome disease is an outbreak worldwide.
There are no definitive drugs yet, but few are in on-going trials. Here, an approach of fragmentbased
drug design (FBDD) methodology is used to identify the broad spectrum agent target to the conserved
region of fusion protein of SARS CoV-2. Three dipeptides (DL, LQ and ID) were chosen from
the library and designed by the systematic combination along with their possible modifications of
amino acids to the target sites. Designed peptides were docked with targeted fusion protein after energy
minimization. Results show strong and significant binding affinity (DL = -60.1 kcal/mol; LQ = -
62.8 kcal/mol; ID= -71.5 kcal/mol) during interaction. Anyone of the active peptides from the developed
libraries may help to block the target sites competitively to successfully control COVID-19.
Preparation of Aluminium of Extreme Purity by the ‘Zone Fusion’ Process
