7E6L

Crystal structure of HCoV-NL63 3C-like protease,pH5.0


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.78 Å
  • R-Value Free: 0.202 
  • R-Value Work: 0.181 
  • R-Value Observed: 0.182 

Starting Model: experimental
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This is version 1.2 of the entry. See complete history


Literature

Crystal structures of human coronavirus NL63 main protease at different pH values

Gao, H.Zhang, Y.Jiang, H.Hu, X.Zhang, Y.Zhou, X.Zhong, F.Lin, C.Li, J.Luo, J.Zhang, J.

(2021) Acta Crystallogr F Struct Biol Commun 77: 348-355

  • DOI: https://doi.org/10.1107/S2053230X21009523
  • Primary Citation of Related Structures:  
    7E6L, 7E6M, 7E6N, 7E6R

  • PubMed Abstract: 

    Human coronavirus NL63 (HCoV-NL63), which belongs to the genus Alphacoronavirus, mainly infects children and the immunocompromized and is responsible for a series of clinical manifestations, including cough, fever, rhinorrhoea, bronchiolitis and croup. HCoV-NL63, which was first isolated from a seven-month-old child in 2004, has led to infections worldwide and accounts for 10% of all respiratory illnesses caused by etiological agents. However, effective antivirals against HCoV-NL63 infection are currently unavailable. The HCoV-NL63 main protease (M pro ), also called 3C-like protease (3CL pro ), plays a vital role in mediating viral replication and transcription by catalyzing the cleavage of replicase polyproteins (pp1a and pp1ab) into functional subunits. Moreover, M pro is highly conserved among all coronaviruses, thus making it a prominent drug target for antiviral therapy. Here, four crystal structures of HCoV-NL63 M pro in the apo form at different pH values are reported at resolutions of up to 1.78 Å. Comparison with M pro from other human betacoronaviruses such as SARS-CoV-2 and SARS-CoV reveals common and distinct structural features in different genera and extends knowledge of the diversity, function and evolution of coronaviruses.


  • Organizational Affiliation

    Department of Rehabilitation Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, People's Republic of China.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
3C-like proteinase
A, B
303Human coronavirus NL63Mutation(s): 0 
EC: 3.4.22
UniProt
Find proteins for P0C6U6 (Human coronavirus NL63)
Explore P0C6U6 
Go to UniProtKB:  P0C6U6
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP0C6U6
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.78 Å
  • R-Value Free: 0.202 
  • R-Value Work: 0.181 
  • R-Value Observed: 0.182 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 63.07α = 90
b = 82.4β = 108.466
c = 63.92γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-2000data reduction
Aimlessdata scaling
PHENIXphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2021-10-06
    Type: Initial release
  • Version 1.1: 2021-10-13
    Changes: Database references
  • Version 1.2: 2023-11-29
    Changes: Data collection, Refinement description