3J6O

Kinetic and Structural Analysis of Coxsackievirus B3 Receptor Interactions and Formation of the A-particle


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 9.00 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

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This is version 1.2 of the entry. See complete history


Literature

Kinetic and structural analysis of coxsackievirus b3 receptor interactions and formation of the a-particle.

Organtini, L.J.Makhov, A.M.Conway, J.F.Hafenstein, S.Carson, S.D.

(2014) J Virol 88: 5755-5765

  • DOI: 10.1128/JVI.00299-14
  • Primary Citation of Related Structures:  
    3J6O, 3J6L, 3J6M, 3J6N

  • PubMed Abstract: 
  • The coxsackievirus and adenovirus receptor (CAR) has been identified as the cellular receptor for group B coxsackieviruses, including serotype 3 (CVB3). CAR mediates infection by binding to CVB3 and catalyzing conformational changes in the virus that result in formation of the altered, noninfectious A-particle ...

    The coxsackievirus and adenovirus receptor (CAR) has been identified as the cellular receptor for group B coxsackieviruses, including serotype 3 (CVB3). CAR mediates infection by binding to CVB3 and catalyzing conformational changes in the virus that result in formation of the altered, noninfectious A-particle. Kinetic analyses show that the apparent first-order rate constant for the inactivation of CVB3 by soluble CAR (sCAR) at physiological temperatures varies nonlinearly with sCAR concentration. Cryo-electron microscopy (cryo-EM) reconstruction of the CVB3-CAR complex resulted in a 9.0-Å resolution map that was interpreted with the four available crystal structures of CAR, providing a consensus footprint for the receptor binding site. The analysis of the cryo-EM structure identifies important virus-receptor interactions that are conserved across picornavirus species. These conserved interactions map to variable antigenic sites or structurally conserved regions, suggesting a combination of evolutionary mechanisms for receptor site preservation. The CAR-catalyzed A-particle structure was solved to a 6.6-Å resolution and shows significant rearrangement of internal features and symmetric interactions with the RNA genome.


    Organizational Affiliation

    Department of Medicine, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Coxsackie and adenovirus receptorA [auth S]225Homo sapiensMutation(s): 0 
Gene Names: CXADRCAR
UniProt & NIH Common Fund Data Resources
Find proteins for P78310 (Homo sapiens)
Explore P78310 
Go to UniProtKB:  P78310
PHAROS:  P78310
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 9.00 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-04-09
    Type: Initial release
  • Version 1.1: 2014-05-07
    Changes: Database references
  • Version 1.2: 2018-07-18
    Changes: Data collection