7M4R

Structural basis for SARS-CoV-2 envelope protein in recognition of human cell junction protein PALS1


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.65 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structural basis for SARS-CoV-2 envelope protein recognition of human cell junction protein PALS1.

Chai, J.Cai, Y.Pang, C.Wang, L.McSweeney, S.Shanklin, J.Liu, Q.

(2021) Nat Commun 12: 3433-3433

  • DOI: 10.1038/s41467-021-23533-x
  • Primary Citation of Related Structures:  
    7M4R

  • PubMed Abstract: 
  • The COVID-19 pandemic, caused by the SARS-CoV-2 virus, has created global health and economic emergencies. SARS-CoV-2 viruses promote their own spread and virulence by hijacking human proteins, which occurs through viral protein recognition of human targets ...

    The COVID-19 pandemic, caused by the SARS-CoV-2 virus, has created global health and economic emergencies. SARS-CoV-2 viruses promote their own spread and virulence by hijacking human proteins, which occurs through viral protein recognition of human targets. To understand the structural basis for SARS-CoV-2 viral-host protein recognition, here we use cryo-electron microscopy (cryo-EM) to determine a complex structure of the human cell junction protein PALS1 and SARS-CoV-2 viral envelope (E) protein. Our reported structure shows that the E protein C-terminal DLLV motif recognizes a pocket formed exclusively by hydrophobic residues from the PDZ and SH3 domains of PALS1. Our structural analysis provides an explanation for the observation that the viral E protein recruits PALS1 from lung epithelial cell junctions. In addition, our structure provides novel targets for peptide- and small-molecule inhibitors that could block the PALS1-E interactions to reduce E-mediated virulence.


    Organizational Affiliation

    NSLS-II, Brookhaven National Laboratory, Upton, NY, USA. qunliu@bnl.gov.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
MAGUK p55 subfamily member 5A, B393Homo sapiensMutation(s): 0 
Gene Names: MPP5PALS1
UniProt & NIH Common Fund Data Resources
Find proteins for Q8N3R9 (Homo sapiens)
Explore Q8N3R9 
Go to UniProtKB:  Q8N3R9
PHAROS:  Q8N3R9
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ8N3R9
Protein Feature View
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  • Reference Sequence

Find similar proteins by:  Sequence   |   3D Structure  

Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Envelope small membrane proteinC18Severe acute respiratory syndrome coronavirus 2Mutation(s): 0 
Gene Names: E4
UniProt
Find proteins for P0DTC4 (Severe acute respiratory syndrome coronavirus 2)
Explore P0DTC4 
Go to UniProtKB:  P0DTC4
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP0DTC4
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.65 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History 

Deposition Data

  • Deposited Date: 2021-03-22 
  • Released Date: 2021-03-31 
  • Deposition Author(s): Liu, Q., Chai, J.

Revision History  (Full details and data files)

  • Version 1.0: 2021-03-31
    Type: Initial release
  • Version 1.1: 2021-07-28
    Changes: Database references