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Title: 2'-O methylation of RNA cap in SARS-CoV-2 captured by serial crystallography

Abstract

The genome of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) coronavirus has a capping modification at the 5'-untranslated region (UTR) to prevent its degradation by host nucleases. These modifications are performed by the Nsp10/14 and Nsp10/16 heterodimers using S-adenosylmethionine as the methyl donor. Nsp10/16 heterodimer is responsible for the methylation at the ribose 2'-O position of the first nucleotide. To investigate the conformational changes of the complex during 2'-O methyltransferase activity, we used a fixed-target serial synchrotron crystallography method at room temperature. We determined crystal structures of Nsp10/16 with substrates and products that revealed the states before and after methylation, occurring within the crystals during the experiments. Here we report the crystal structure of Nsp10/16 in complex with Cap-1 analog (m7GpppAm2'-O). Inhibition of Nsp16 activity may reduce viral proliferation, making this protein an attractive drug target.

Authors:
 [1]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [4]; ORCiD logo [3]; ORCiD logo [2];  [2]; ORCiD logo [4];  [4]; ORCiD logo [3];  [2]; ORCiD logo [2]; ORCiD logo [4]; ORCiD logo [3];  [4]
  1. Univ. of Chicago, IL (United States); Jagiellonian Univ., Krakow (Poland)
  2. Argonne National Lab. (ANL), Argonne, IL (United States)
  3. Northwestern Univ., Evanston, IL (United States)
  4. Univ. of Chicago, IL (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE; National Institutes of Health (NIH); U.S. Department of Treasury
OSTI Identifier:
1787334
Grant/Contract Number:  
AC02-06CH11357; HHSN272201700060C
Resource Type:
Accepted Manuscript
Journal Name:
Proceedings of the National Academy of Sciences of the United States of America
Additional Journal Information:
Journal Volume: 118; Journal Issue: 21; Journal ID: ISSN 0027-8424
Publisher:
National Academy of Sciences
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES; CAP-1; Nsp10/16; SARS-CoV-2; mRNA; serial crystallography

Citation Formats

Wilamowski, Mateusz, Sherrell, Darren A., Minasov, George, Kim, Youngchang, Shuvalova, Ludmilla, Lavens, Alex, Chard, Ryan, Maltseva, Natalia, Jedrzejczak, Robert, Rosas-Lemus, Monica, Saint, Nickolaus, Foster, Ian T., Michalska, Karolina, Satchell, Karla F., and Joachimiak, Andrzej. 2'-O methylation of RNA cap in SARS-CoV-2 captured by serial crystallography. United States: N. p., 2021. Web. doi:10.1073/pnas.2100170118.
Wilamowski, Mateusz, Sherrell, Darren A., Minasov, George, Kim, Youngchang, Shuvalova, Ludmilla, Lavens, Alex, Chard, Ryan, Maltseva, Natalia, Jedrzejczak, Robert, Rosas-Lemus, Monica, Saint, Nickolaus, Foster, Ian T., Michalska, Karolina, Satchell, Karla F., & Joachimiak, Andrzej. 2'-O methylation of RNA cap in SARS-CoV-2 captured by serial crystallography. United States. https://doi.org/10.1073/pnas.2100170118
Wilamowski, Mateusz, Sherrell, Darren A., Minasov, George, Kim, Youngchang, Shuvalova, Ludmilla, Lavens, Alex, Chard, Ryan, Maltseva, Natalia, Jedrzejczak, Robert, Rosas-Lemus, Monica, Saint, Nickolaus, Foster, Ian T., Michalska, Karolina, Satchell, Karla F., and Joachimiak, Andrzej. Mon . "2'-O methylation of RNA cap in SARS-CoV-2 captured by serial crystallography". United States. https://doi.org/10.1073/pnas.2100170118. https://www.osti.gov/servlets/purl/1787334.
@article{osti_1787334,
title = {2'-O methylation of RNA cap in SARS-CoV-2 captured by serial crystallography},
author = {Wilamowski, Mateusz and Sherrell, Darren A. and Minasov, George and Kim, Youngchang and Shuvalova, Ludmilla and Lavens, Alex and Chard, Ryan and Maltseva, Natalia and Jedrzejczak, Robert and Rosas-Lemus, Monica and Saint, Nickolaus and Foster, Ian T. and Michalska, Karolina and Satchell, Karla F. and Joachimiak, Andrzej},
abstractNote = {The genome of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) coronavirus has a capping modification at the 5'-untranslated region (UTR) to prevent its degradation by host nucleases. These modifications are performed by the Nsp10/14 and Nsp10/16 heterodimers using S-adenosylmethionine as the methyl donor. Nsp10/16 heterodimer is responsible for the methylation at the ribose 2'-O position of the first nucleotide. To investigate the conformational changes of the complex during 2'-O methyltransferase activity, we used a fixed-target serial synchrotron crystallography method at room temperature. We determined crystal structures of Nsp10/16 with substrates and products that revealed the states before and after methylation, occurring within the crystals during the experiments. Here we report the crystal structure of Nsp10/16 in complex with Cap-1 analog (m7GpppAm2'-O). Inhibition of Nsp16 activity may reduce viral proliferation, making this protein an attractive drug target.},
doi = {10.1073/pnas.2100170118},
journal = {Proceedings of the National Academy of Sciences of the United States of America},
number = 21,
volume = 118,
place = {United States},
year = {Mon May 10 00:00:00 EDT 2021},
month = {Mon May 10 00:00:00 EDT 2021}
}

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