7C22

Crystal structure of the C-terminal domain of SARS-CoV-2 nucleocapsid protein


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.238 
  • R-Value Work: 0.189 
  • R-Value Observed: 0.191 

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Ligand Structure Quality Assessment 


This is version 1.4 of the entry. See complete history


Literature

Structural characterization of the C-terminal domain of SARS-CoV-2 nucleocapsid protein.

Zhou, R.Zeng, R.von Brunn, A.Lei, J.

(2020) Mol Biomed 1: 2-2

  • DOI: 10.1186/s43556-020-00001-4
  • Primary Citation of Related Structures:  
    7C22

  • PubMed Abstract: 
  • The newly emerging severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has resulted in a global human health crisis. The CoV nucleocapsid (N) protein plays essential roles both in the viral genomic RNA packaging and the regulation of host cellular machinery ...

    The newly emerging severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has resulted in a global human health crisis. The CoV nucleocapsid (N) protein plays essential roles both in the viral genomic RNA packaging and the regulation of host cellular machinery. Here, to contribute to the structural information of the N protein, we describe the 2.0 Å crystal structure of the SARS-CoV-2 N protein C-terminal domain (N-CTD). The structure indicates an extensive interaction dimer in a domain-swapped manner. The interface of this dimer was first thoroughly illustrated. Also, the SARS-CoV-2 N-CTD dimerization form was verified in solution using size-exclusion chromatography. Based on the structural comparison of the N-CTDs from alpha-, beta-, and gamma-CoVs, we demonstrate the common and specific characteristics of the SARS-CoV-2 N-CTD. Furthermore, we provide evidence that the SARS-CoV-2 N-CTD possesses the binding ability to single-stranded RNA, single-stranded DNA as well as double-stranded DNA in vitro. In conclusion, this study could potentially accelerate research to understand the complete biological functions of the new CoV N protein.


    Organizational Affiliation

    National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, No.17, Block 3, Southern Renmin Road, Chengdu, 610041, Sichuan, China. leijian@scu.edu.cn.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
NucleoproteinA, B, C, D120Severe acute respiratory syndrome coronavirus 2Mutation(s): 0 
Gene Names: N
UniProt
Find proteins for P0DTC9 (Severe acute respiratory syndrome coronavirus 2)
Explore P0DTC9 
Go to UniProtKB:  P0DTC9
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP0DTC9
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PEG (Subject of Investigation/LOI)
Query on PEG

Download Ideal Coordinates CCD File 
F [auth A]DI(HYDROXYETHYL)ETHER
C4 H10 O3
MTHSVFCYNBDYFN-UHFFFAOYSA-N
 Ligand Interaction
ACT (Subject of Investigation/LOI)
Query on ACT

Download Ideal Coordinates CCD File 
E [auth A],
G [auth C]
ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.238 
  • R-Value Work: 0.189 
  • R-Value Observed: 0.191 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 43.763α = 106.79
b = 49.458β = 90.05
c = 68.819γ = 97.79
Software Package:
Software NamePurpose
REFMACrefinement
PDB_EXTRACTdata extraction
XDSdata reduction
Aimlessdata scaling
PHENIXphasing

Structure Validation

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Ligand Structure Quality Assessment 



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Natural Science Foundation of China (NSFC)China2020YFS0010/HX2019nCoV039

Revision History  (Full details and data files)

  • Version 1.0: 2020-05-20
    Type: Initial release
  • Version 1.1: 2020-08-12
    Changes: Database references
  • Version 1.2: 2020-10-28
    Changes: Database references
  • Version 1.3: 2021-03-10
    Changes: Structure summary
  • Version 1.4: 2022-02-16
    Changes: Database references