7EXM

The N-terminal crystal structure of SARS-CoV-2 NSP2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.96 Å
  • R-Value Free: 0.226 
  • R-Value Work: 0.200 

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This is version 2.2 of the entry. See complete history


Literature

Structure and Function of N-Terminal Zinc Finger Domain of SARS-CoV-2 NSP2.

Ma, J.Chen, Y.Wu, W.Chen, Z.

(2021) Virol Sin 36: 1104-1112

  • DOI: https://doi.org/10.1007/s12250-021-00431-6
  • Primary Citation of Related Structures:  
    7EXM

  • PubMed Abstract: 

    SARS-CoV-2 has become a global pandemic threatening human health and safety. It is urgent to find effective therapeutic agents and targets with the continuous emergence of novel mutant strains. The knowledge of the molecular basis and pathogenesis of SARS-CoV-2 in host cells requires to be understood comprehensively. The unknown structure and function of nsp2 have hindered our understanding of its role in SARS-CoV-2 infection. Here, we report the crystal structure of the N-terminal of SARS-CoV-2 nsp2 to a high resolution of 1.96 Å. This novel structure contains three zinc fingers, belonging to the C2H2, C4, and C2HC types, respectively. Structure analysis suggests that nsp2 may be involved in binding nucleic acids and regulating intracellular signaling pathways. The binding to single or double-stranded nucleic acids was mainly through the large positively charged region on the surface of nsp2, and K111, K112, K113 were key residues. Our findings lay the foundation for a better understanding of the relationship between structure and function for nsp2. It is helpful to make full use of nsp2 as further research and development of antiviral targets and drug design.


  • Organizational Affiliation

    State Key Laboratory of Agrobiotechnology and Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Biological Sciences, China Agricultural University, Beijing, 100193, China.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Non-structural protein 2
A, B, C, D
278Severe acute respiratory syndrome coronavirus 2Mutation(s): 0 
UniProt
Find proteins for P0DTD1 (Severe acute respiratory syndrome coronavirus 2)
Explore P0DTD1 
Go to UniProtKB:  P0DTD1
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP0DTD1
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
GOL (Subject of Investigation/LOI)
Query on GOL

Download Ideal Coordinates CCD File 
N [auth C]GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
ZN (Subject of Investigation/LOI)
Query on ZN

Download Ideal Coordinates CCD File 
E [auth A]
F [auth A]
G [auth A]
H [auth B]
I [auth B]
E [auth A],
F [auth A],
G [auth A],
H [auth B],
I [auth B],
J [auth B],
K [auth C],
L [auth C],
M [auth C],
O [auth D],
P [auth D],
Q [auth D]
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.96 Å
  • R-Value Free: 0.226 
  • R-Value Work: 0.200 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 57.926α = 90
b = 159.603β = 91.194
c = 63.552γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
HKL-3000data reduction
HKL-3000data scaling
HKL2Mapphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2021-06-16
    Type: Initial release
  • Version 2.0: 2021-08-18
    Type: Coordinate replacement
    Reason: Model completeness
    Changes: Advisory, Atomic model, Author supporting evidence, Data collection, Database references, Derived calculations, Refinement description, Structure summary
  • Version 2.1: 2021-09-01
    Changes: Database references
  • Version 2.2: 2022-02-16
    Changes: Database references