User:Ann Taylor/SARS-CoV2 MPro

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==SARS-CoV2 MPro==
==SARS-CoV2 MPro==
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<StructureSection load='6y2e' size='340' side='right' caption='Main Protease from SARS-CoV2' scene=''
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<StructureSection load='6y2e' size='340' side='right' caption='Main Protease from SARS-CoV2' scene=''>
Like many viruses, SARS-CoV2 synthesizes its proteins in long, polypeptide chains that must be cleaved to form functional proteins. The coronavirus ORF 1 polyprotein can be divided into an N-terminal region that is processed by one or two Papain-like proteases and a C-terminal region which is processed by the main protease. <ref> Enjuanes, L., (2005). Coronavirus replication and reverse genetics Berlin; New York: Springer, S. 69-78. </ref> While papain-like protease(s) cleave only three sites, the main protease cleaves 11 sites in the polyprotein to generate functional proteins. Additionally, the main protease cleaves its own N- and C-terminal autoprocessing sites. The cleaved functional proteins include viral enzymes needed for replication such as the RNA-dependant RNA polymerase, a helicase and other non-structural or accessory proteins such as an exoribonuclease, an endoribonuclease, a ssRNA binding protein and a 2’-O-ribose methyltransferase. <ref> Muramatsu, T., Takemoto, C., Kim, Y.-T., Wang, H., Nishii, W., Terada, T., Shirouzu, M. & Yokoyama, S. (2016). Proc Natl Acad Sci U S A. 113, 12997–13002. </ref>
Like many viruses, SARS-CoV2 synthesizes its proteins in long, polypeptide chains that must be cleaved to form functional proteins. The coronavirus ORF 1 polyprotein can be divided into an N-terminal region that is processed by one or two Papain-like proteases and a C-terminal region which is processed by the main protease. <ref> Enjuanes, L., (2005). Coronavirus replication and reverse genetics Berlin; New York: Springer, S. 69-78. </ref> While papain-like protease(s) cleave only three sites, the main protease cleaves 11 sites in the polyprotein to generate functional proteins. Additionally, the main protease cleaves its own N- and C-terminal autoprocessing sites. The cleaved functional proteins include viral enzymes needed for replication such as the RNA-dependant RNA polymerase, a helicase and other non-structural or accessory proteins such as an exoribonuclease, an endoribonuclease, a ssRNA binding protein and a 2’-O-ribose methyltransferase. <ref> Muramatsu, T., Takemoto, C., Kim, Y.-T., Wang, H., Nishii, W., Terada, T., Shirouzu, M. & Yokoyama, S. (2016). Proc Natl Acad Sci U S A. 113, 12997–13002. </ref>

Revision as of 21:35, 20 February 2023

SARS-CoV2 MPro

Main Protease from SARS-CoV2

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References

  1. ↑ Enjuanes, L., (2005). Coronavirus replication and reverse genetics Berlin; New York: Springer, S. 69-78.
  2. ↑ Muramatsu, T., Takemoto, C., Kim, Y.-T., Wang, H., Nishii, W., Terada, T., Shirouzu, M. & Yokoyama, S. (2016). Proc Natl Acad Sci U S A. 113, 12997–13002.
  3. ↑ Yang, H., Yang, M., Ding, Y., Liu, Y., Lou, Z., Zhou, Z., Sun, L., Mo, L., Ye, S., Pang, H., Gao, G. F., Anand, K., Bartlam, M., Hilgenfeld, R. & Rao, Z. (2003). Proc Natl Acad Sci U S A. 100, 13190–13195.
  4. ↑ Xu, T., Ooi, A., Lee, H. C., Wilmouth, R., Liu, D. X. & Lescar, J. (2005). Acta Crystallogr Sect F Struct Biol Cryst Commun. 61, 964–966.
  5. ↑ Gorbalenya, A. E., Snijder, E. J. & Ziebuhr, J. (2000). Journal of General Virology. 81, 853–879.
  6. ↑ Xue, X., Yu, H., Yang, H., Xue, F., Wu, Z., Shen, W., Li, J., Zhou, Z., Ding, Y., Zhao, Q., Zhang, X. C., Liao, M., Bartlam, M. & Rao, Z. (2008). Journal of Virology. 82, 2515–2527.
  7. ↑ Rut, W., Groborz, K., Zhang, L., Sun, X., Zmudzinski, M., Hilgenfeld, R. & Drag, M. (2020). BioRxiv. 2020.03.07.981928.

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Ann Taylor

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