Selected article for: "accessory protein and acute coronavirus syndrome"
Author: Hassan, Sk. Sarif; Attrish, Diksha; Ghosh, Shinjini; Choudhury, Pabitra Pal; Uversky, Vladimir N.; Uhal, Bruce D.; Lundstrom, Kenneth; Rezaei, Nima; Aljabali, Alaa A. A.; Seyran, Murat; Pizzol, Damiano; Adadi, Parise; Abd El-Aziz, Tarek Mohamed; Soares, Antonio; Kandimalla, Ramesh; Tambuwala, Murtaza; Lal, Amos; Azad, Gajendra Kumar; Sherchan, Samendra P.; Baetas-da-Cruz, Wagner; Palù, Giorgio; Brufsky, Adam M.
Title: Notable sequence homology of the ORF10 protein introspects the architecture of SARS-COV-2
  • Cord-id: 3erodkv9
  • Document date: 2020_9_6
    • ID: 3erodkv9
    Snippet: The global public health is endangered due to COVID-19 pandemic, which is caused by Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2). Despite having similar pathology to MERS and SARS-CoV, the infection fatality rate of SARS-CoV-2 is likely lower than 1%. SARS-CoV-2 has been reported to be uniquely characterized by the accessory protein ORF10, which contains eleven cytotoxic T lymphocyte (CTL) epitopes of nine amino acids length each, across various human leukocyte antigen (HLA) subt
    Document: The global public health is endangered due to COVID-19 pandemic, which is caused by Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2). Despite having similar pathology to MERS and SARS-CoV, the infection fatality rate of SARS-CoV-2 is likely lower than 1%. SARS-CoV-2 has been reported to be uniquely characterized by the accessory protein ORF10, which contains eleven cytotoxic T lymphocyte (CTL) epitopes of nine amino acids length each, across various human leukocyte antigen (HLA) subtypes. In this study, all missense mutations found in sequence databases were examined across twnety-two unique SARS-CoV-2 ORF10 variants that could possibly alter viral pathogenicity. Some of these mutations decrease the stability of ORF10, e.g. I4L and V6I were found in the MoRF region of ORF10 which may also possibly contribute to Intrinsic protein disorder. Furthermore, a physicochemical and structural comparative analysis was carried out on SARS-CoV-2 and Pangolin-CoV ORF10 proteins, which share 97.37% amino acid homology. The high degree of physicochemical and structural similarity of ORF10 proteins of SARS-CoV-2 and Pangolin-CoV open questions about the architecture of SARS-CoV-2 due to the disagreement of these two ORF10 proteins over their sub-structure (loop/coil region), solubility, antigenicity and change from the strand to coil at amino acid position 26, where tyrosine is present. Altogether, SARS-CoV-2 ORF10 is a promising pharmaceutical target and a protein which should be monitored for changes which correlate to change pathogenesis and clinical course of COVID-19 infection.

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