5WWP

Crystal structure of Middle East respiratory syndrome coronavirus helicase (MERS-CoV nsp13)

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.232 
  • R-Value Observed: 0.234 

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This is version 1.1 of the entry. See complete history. 


Literature

Crystal structure of Middle East respiratory syndrome coronavirus helicase

Hao, W., Wojdyla, J.A., Zhao, R., Han, R., Das, R., Zlatev, I., Manoharan, M., Wang, M., Cui, S.

(2017) PLoS Pathog 13: e1006474-e1006474

  • DOI: 10.1371/journal.ppat.1006474
  • Primary Citation of Related Structures:  
    5WWP

  • PubMed Abstract: 

    • Middle East respiratory syndrome coronavirus (MERS-CoV) remains a threat to public health worldwide; however, effective vaccine or drug against CoVs remains unavailable. CoV helicase is one of the three evolutionary most conserved proteins in nidoviruses, thus making it an important target for drug development ...

    Middle East respiratory syndrome coronavirus (MERS-CoV) remains a threat to public health worldwide; however, effective vaccine or drug against CoVs remains unavailable. CoV helicase is one of the three evolutionary most conserved proteins in nidoviruses, thus making it an important target for drug development. We report here the first structure of full-length coronavirus helicase, MERS-CoV nsp13. MERS-CoV helicase has multiple domains, including an N-terminal Cys/His rich domain (CH) with three zinc atoms, a beta-barrel domain and a C-terminal SF1 helicase core with two RecA-like subdomains. Our structural analyses show that while the domain organization of nsp13 is conserved throughout nidoviruses, the individual domains of nsp13 are closely related to the equivalent eukaryotic domains of Upf1 helicases. The most distinctive feature differentiating CoV helicases from eukaryotic Upf1 helicases is the interaction between CH domain and helicase core.

    Organizational Affiliation: 

    MOH key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, No.9 Dong Dan San Tiao, Beijing, China.



Macromolecules
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(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ORF1abB [auth A],
A [auth B]		600Human betacoronavirus 2c EMC/2012Mutation(s): 0 
Gene Names: orf1ab
EC: 2.7.7.48 (UniProt), 3.4.19.12 (UniProt), 3.4.22.69 (UniProt), 3.6.4.12 (UniProt), 3.6.4.13 (UniProt)
UniProt
Find proteins for K0BWD0 (Human betacoronavirus 2c EMC/2012)
Explore K0BWD0 
Go to UniProtKB:  K0BWD0
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupK0BWD0
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.232 
  • R-Value Observed: 0.234 
  • Space Group: P 61 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 185.675α = 90
b = 185.675β = 90
c = 185.087γ = 120
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
Cootdata scaling
PHASERphasing

Structure Validation

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Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
National Natural Science Foundation of China (NSFC)China81501759

Revision History  (Full details and data files)

  • Version 1.0: 2017-07-05
    Type: Initial release
  • Version 1.1: 2021-09-15
    Changes: Author supporting evidence, Database references, Derived calculations