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Ribbon diagram of the protein with the drug shown as sticks. The catalytic residues (His41, Cys145) are shown as yellow sticks. The catalytic residues (His41, Cys145) are shown as yellow sticks. Nirmatrelvir is an antiviral medication developed by Pfizer which acts as an orally active 3C-like protease inhibitor .
Laboratory studies have indicated that Jun12682 may retain efficacy against certain strains of SARS-CoV-2 that have developed resistance to other antiviral agents, including nirmatrelvir. This characteristic may position Jun12682 as an option in the treatment of COVID-19 in cases where viral resistance to existing therapies is a concern.
SARS‑CoV‑2 is a strain of the species Betacoronavirus pandemicum (SARSr-CoV), as is SARS-CoV-1, the virus that caused the 2002–2004 SARS outbreak. [ 2 ] [ 17 ] There are animal-borne coronavirus strains more closely related to SARS-CoV-2, the most closely known relative being the BANAL-52 bat coronavirus.
In 2003, following the outbreak of severe acute respiratory syndrome (SARS) which had begun the prior year in Asia, and secondary cases elsewhere in the world, the World Health Organization (WHO) issued a press release stating that a novel coronavirus identified by several laboratories was the causative agent for SARS. The virus was officially ...
Note the spikes that adorn the outer surface of the virus, which impart the look of a corona surrounding the virion, when viewed electron microscopically. A novel coronavirus, named Severe Acute Respiratory Syndrome coronavirus 2 (SARS-CoV-2), was identified as the cause of an outbreak of respiratory illness first detected in Wuhan, China in 2019.
As of April 2020 trials were investigating whether existing medications could be used effectively against the body's immune reaction to SARS-CoV-2 infection. [44] [45] As of May 2020 several antiviral drugs were under investigation for COVID-19, though none had been shown to be clearly effective on mortality in published randomized controlled ...
SARS-CoV-2 as seen by a cryo-electron tomography scan. SARS‑CoV‑2 belongs to the broad family of viruses known as coronaviruses. It is a positive-sense single-stranded RNA (+ssRNA) virus, with a single linear RNA segment. Coronaviruses infect humans, other mammals, including livestock and companion animals, and avian species.
Date/Time Thumbnail Dimensions User Comment; current: 05:47, 13 September 2022: 3,469 × 3,468 (1.86 MB): MinMaj7th: updated with new lineage information: 22:51, 7 May 2022